From disks to planets

2015 Fiscal Year Annual Research Report

• Project Area: New Frontiers of Extrasolar Planets: Exploring Terrestrial Planets
• Project/Area Number: 23103004
• Research Institution: Ibaraki University
• Principal Investigator: 百瀬 宗武 茨城大学, 理学部, 教授 (10323205)
• Co-Investigator(Kenkyū-buntansha): 深川 美里 名古屋大学, 理学研究科, 准教授 (40509840) ; 尾中 敬 東京大学, 理学系研究科, 教授 (30143358) ; 田中 秀和 東北大学, 理学研究科, 教授 (00282814) ; 山本 哲生 北海道大学, 低温科学研究所, 名誉教授 (10126196) ; 荒川 政彦 神戸大学, 理学研究科, 教授 (10222738) ; 相川 祐理 筑波大学, 計算科学研究センター, 教授 (40324909) ; 武藤 恭之 工学院大学, 基礎・教養教育部門, 准教授 (20633803) ; 塚越 崇 茨城大学, 理学部, 助教 (20533566)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: 電波天文学 / 光学赤外線天文学 / 惑星起源・進化 / 理論天文学 / 原始惑星系円盤

Outline of Annual Research Achievements

【円盤観測】中質量前主系列星に対する観測により，リング構造を示す円盤を近赤外線散乱光撮像で新たに見出したほか，25μmの撮像サーベイではGroup Iエネルギースペクトル分布を持つ円盤が共通に内域ダスト欠乏領域を有することを明らかにした。ALMA観測の結果，HD142527に付随する円盤内でのガスダスト比の空間変化を明らかにした他，成長したダストの自己散乱でよく説明される偏光パターンをダスト連続波中に初めて見出した。さらに，TW Hyaに付随する円盤中の22auギャップにおいて大サイズのダストが欠乏している観測的証拠を捉え，海王星程度の惑星によるギャップと整合的なことを示した。銀河系内の様々な環境下で円盤寿命を近赤外測光観測を通じて見積もり，銀河内域では太陽近傍より長い寿命を持つ一方，外域の低金属環境下ではより短い寿命を示唆する兆候を得た。
【円盤構造とダスト成長の理論】円盤中のガス惑星が作る惑星ギャップの構造を系統的な数値計算を元に調べ，その結果をHL Tau円盤に対するALMA観測結果に適用し，惑星質量を世界に先駆けて推定した。一方で，ダスト焼結に伴うダスト滞留領域が円盤内の同心円リング構造に当たる可能性も指摘した。自己散乱によるダスト放射偏光の発生を理論的に調べ，ALMA偏光観測によってダストサイズに厳しい制限をつけられる可能性を指摘した。水の凝縮核生成の大規模分子動力学シミュレーションにより，幅広い温度・圧力下での凝縮核生成率やその実験データを再現する理論モデルを提唱した。
【その他】質量降着期における原始惑星系円盤内での水の重水素濃集度や水素分子の核スピン異性体比の変化を化学モデル計算により調べ，質量降着後期における水氷の重水素濃集度は，水の光解離による破壊と再生成過程を経験することにより，前期に比べ低下することを明らかにした。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] VLT/ISAAC infrared spectroscopy of embedded high-mass YSOs in the Large Magellanic Cloud: Methanol and the 3.47 μm band (2016)
  • Author(s): Shimonishi, T., Dartois, E., Onaka, T., & Boulanger, F.
  • Journal Title: Astronomy & Astrophysics Volume: 585 Pages: A107 (20 pp)
  • DOI: 10.1051/0004-6361/201526559
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deuterated polycyclic aromatic hydrocarbons: Revisited (2016)
  • Author(s): Doney, K. D., Candian, A., Mori, T., Onaka, T., & Tielens, A. G. G. M.
  • Journal Title: Astronomy & Astrophysics Volume: 586 Pages: A65 (10 pp)
  • DOI: 10.1051/0004-6361/201526809
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Reconstructing the history of water ice formation from HDO/H2O and D2O/HDO ratios in protostellar cores (2016)
  • Author(s): Furuya, K., van Dishoeck, E. F., & Aikawa, Y.
  • Journal Title: Astronomy & Astrophysics Volume: 586 Pages: A127 (8 pp)
  • DOI: 10.1051/0004-6361/201527579
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] From Planetesimals to Planets in Turbulent Protoplanetary Disks. I. Onset of Runaway Growth (2016)
  • Author(s): Kobayashi, H., Tanaka, H., & Okuzumi, S.
  • Journal Title: The Astrophysical Journal Volume: 817 Pages: 105 (10 pp)
  • DOI: 10.3847/0004-637X/817/2/105
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Concurrent Formation of Carbon and Silicate Dust in Nova V1280 Sco (2016)
  • Author(s): Sakon, I., Sako, S., Onaka, T., Nozawa, T., Kimura, Y., Fujiyoshi, T., Shimonishi, T., Usui, F., Takahashi, H., Ohsawa, R., Arai, A., Uemura, M., Nagayama, T., Koo, B.-C., & Kozasa, T.
  • Journal Title: The Astrophysical Journal Volume: 817 Pages: 145 (23 pp)
  • DOI: 10.3847/0004-637X/817/2/145
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Herbig Ae/Be Candidate Stars in the Innermost Galactic Disk: Quartet Cluster (2016)
  • Author(s): Yasui, C., Kobayashi, N., Hamano, S., Kondo, S., Izumi, N., Saito, M., & Tokunaga, A. T.
  • Journal Title: The Astrophysical Journal Volume: 817 Pages: 181 (12 pp)
  • DOI: 10.3847/0004-637X/817/2/181
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Observational constraint on Pluto’s atmospheric CO with ASTE (2016)
  • Author(s): Iino, T., Hirahara, Y., Hidemori, T., Tsukagoshi, T., Nakajima, T., Nakamoto, S., & Kato, C.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: L1 (
  • DOI: 10.1093/pasj/psv120
  • Peer Reviewed
• [Journal Article] Circumstellar disks of the most vigorously accreting young stars (2016)
  • Author(s): Liu, H. B., Takami, M., Kudo, T., Hashimoto, J., Dong, R., Vorobyov, E. I., Pyo, T.-S., Fukagawa, M., Tamura, M., Henning, T., Dunham, M. M., Karr, J. L., Kusakabe, N., & Tsuribe, T.
  • Journal Title: Science Advances Volume: 2 Pages: e1500875
  • DOI: 10.1126/sciadv.1500875
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Low-metallicity Young Clusters in the Outer Galaxy. I. Sh 2-207 (2016)
  • Author(s): Yasui, C., Kobayashi, N., Tokunaga, A. T., Saito, M., & Izumi, N.
  • Journal Title: The Astronomical Journal Volume: 151 Pages: 50 (10 pp)
  • DOI: 10.3847/0004-6256/151/3/50
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Modeling of the Zodiacal Emission for the AKARI/IRC Mid-infrared All-sky Diffuse Maps (2016)
  • Author(s): Kondo, T., Ishihara, D., Kaneda, H., Nakamichi, K., Takaba, S., Kobayashi, H., Ootsubo, T., Pyo, J., & Onaka, T.
  • Journal Title: The Astronomical Journal Volume: 151 Pages: 71 (11 pp)
  • DOI: 10.3847/0004-6256/151/3/71
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA Observations of a Gap and a Ring in the Protoplanetary Disk around TW Hya (2016)
  • Author(s): Nomura, H., Tsukagoshi, T., Kawabe, R., Ishimoto, D., Okuzumi, S., Muto, T., Kanagawa, K. D., Ida, S., Walsh, C., Millar, T. J., & Bai, X.-N.
  • Journal Title: The Astrophysical Journal Letters Volume: 819 Pages: L7 (7 pp)
  • DOI: 10.3847/2041-8205/819/1/L7
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The Matryoshka Disk: Keck/NIRC2 Discovery of a Solar-system-scale, Radially Segregated Residual Protoplanetary Disk around HD 141569A (2016)
  • Author(s): Currie, T., Grady, C. A., Cloutier, R., Konishi, M., Stassun, K., Debes, J., van der Marel, N., Muto, T., Jayawardhana, R., & Ratzka, T.
  • Journal Title: The Astrophysical Journal Letters Volume: 819 Pages: L26 (6 pp)
  • DOI: 10.3847/2041-8205/819/2/L26
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Grain Size Constraints on HL Tau with Polarization Signature (2016)
  • Author(s): Kataoka, A., Muto, T., Momose, M., Tsukagoshi, T., & Dullemond, C. P.
  • Journal Title: The Astrophysical Journal Volume: 820 Pages: 54 (8 pp)
  • DOI: 10.3847/0004-637X/820/1/54
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Compressional stress effect on thermal conductivity of powdered materials: Measurements and their implication to lunar regolith (2016)
  • Author(s): Sakatani, N., Ogawa, K., Iijima, Y.-i., Arakawa, M., & Tanaka, S.
  • Journal Title: Icarus Volume: 267 Pages: 1-11
  • DOI: 10.1016/j.icarus.2015.12.012
  • Peer Reviewed
• [Journal Article] AKARI/IRC Near-infrared Spectral Atlas of Galactic Planetary Nebulae (2016)
  • Author(s): Ohsawa, R., Onaka, T., Sakon, I., Matsuura, M., & Kaneda, H.
  • Journal Title: The Astronomical Journal Volume: 141 Pages: 93 (28 pp)
  • DOI: 10.3847/0004-6256/151/4/93
  • Peer Reviewed
• [Journal Article] Stable and Unstable Regimes of Mass Accretion onto RW Aur A (2016)
  • Author(s): Takami, M., Wei, Y.-J., Chou, M.-Y., Karr, J. L., Beck, T. L., Manset, N., Chen, W.-P., Kurosawa, R., Fukagawa, M., White, M., Galvan-Madrid, R., Liu, H. B., Pyo, T.-S., & Donati, J.-F.,
  • Journal Title: The Astrophysical Journal Volume: 820 Pages: 139 (13 pp)
  • DOI: 10.3847/0004-637X/820/2/139
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Subarcsecond Analysis of the Infalling-Rotating Envelope around the Class I Protostar IRAS 04365+2535 (2016)
  • Author(s): Sakai, N., Oya, Y., Lopez-Sepulcre, A., Watanabe, Y., Sakai, T., Hirota, T., Aikawa, Y., Ceccarelli, C., Lefloch, B., Caux, E., Vastel, C., Kahane, C., & Yamamoto, S.
  • Journal Title: The Astrophysical Journal Letters Volume: 820 Pages: L34 (6 pp)
  • DOI: 10.3847/2041-8205/820/2/L34
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Water Ice at the Surface of the HD 100546 Disk (2016)
  • Author(s): Honda, M., Kudo, T., Takatsuki, S., Inoue, A. K., Nakamoto, T., Fukagawa, M., Tamura, M., Terada, H., & Takato, N.
  • Journal Title: The Astrophysical Journal Volume: 821 Pages: 2 (6 pp)
  • DOI: 10.3847/0004-637X/821/1/2
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Detection of Linearly Polarized 6.9 mm Continuum Emission from the Class 0 Young Stellar Object NGC 1333 IRAS4A (2016)
  • Author(s): Liu, H. B., Lai, S.-P., Hasegawa, Y., Hirano, N., Rao, R., Li, I.-H., Fukagawa, M., Girart, J. M., Carrasco-Gonzalez, C., & Rodriguez, L. F.
  • Journal Title: The Astrophysical Journal Volume: 821 Pages: 41 (9 pp)
  • DOI: 10.3847/0004-637X/821/1/41
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sintering-induced Dust Ring Formation in Protoplanetary Disks: Application to the HL Tau Disk (2016)
  • Author(s): Okuzumi, S., Momose, M., Sirono, S.-i., Kobayashi, H., & Tanaka, H.
  • Journal Title: The Astrophysical Journal Volume: 821 Pages: 82 (24 pp)
  • DOI: 10.3847/0004-637X/821/2/82
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Revised calibration for near- and mid-infrared images from ~4000 pointed observations with AKARI/IRC (2016)
  • Author(s): Egusa, F., Usui, F., Murata, K., Yamashita, T., Yamamura, I., & Onaka, T.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 19 (19 pp)
  • DOI: 10.1093/pasj/psv135
  • Peer Reviewed
• [Journal Article] Revised wavelength and spectral response calibrations for AKARI near-infrared grism spectroscopy: Cryogenic phase (2016)
  • Author(s): Baba, S., Nakagawa, T., Shirahata, M., Isobe, N., Usui, F., Ohyama, Y., Onaka, T., Yano, K., & Kochi, C.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 27 (12 pp)
  • DOI: 10.1093/pasj/psw013
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Low-metallicity Young Clusters in the Outer Galaxy. II. Sh 2-208 (2016)
  • Author(s): Yasui, C., Kobayashi, N., Saito, M., & Izumi, N.
  • Journal Title: The Astronomical Journal Volume: 151 Pages: 115 (14 pp)
  • DOI: 10.3847/0004-6256/151/5/115
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Final Masses of Giant Planets. II. Jupiter Formation in a Gas-depleted Disk (2016)
  • Author(s): Tanigawa, T., & Tanaka, H.
  • Journal Title: The Astrophysical Journal Volume: 823 Pages: 48 (14 pp)
  • DOI: 10.3847/0004-637X/823/1/48
  • Peer Reviewed
• [Journal Article] First Detection of Gas-phase Methanol in a Protoplanetary Disk (2016)
  • Author(s): Walsh,C., Loomis, R.A., Oberg, K.I., Kama, M., van’t Hoff, M.L.R., Millar, T.J., Aikawa, Y., Herbst, E., Widicus Weaver, S. L., & Nomura, H.
  • Journal Title: The Astrophysical Journal Letters Volume: 823 Pages: L10 (7 pp)
  • DOI: 10.3847/2041-8205/823/1/L10
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Light Scattering by Fractal Dust Aggregates. I. Angular Dependence of Scattering (2016)
  • Author(s): Tazaki, R., Tanaka, H., Okuzumi, S., Kataoka, A., & Nomura, H.
  • Journal Title: The Astrophysical Journal Volume: 823 Pages: 70 (16 pp)
  • DOI: 10.3847/0004-637X/823/2/70
  • Peer Reviewed
• [Journal Article] Parametric Study of the Rossby Wave Instability in a Two-dimensional Barotropic Disk (2016)
  • Author(s): Ono, T., Muto, T., Takeuchi, T., & Nomura, H.
  • Journal Title: The Astrophysical Journal Volume: 823 Pages: 84 (21 pp)
  • DOI: 10.3847/0004-637X/823/2/84
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Mass constraint for a planet in a protoplanetary disk from the gap width (2016)
  • Author(s): Kanagawa, K. D., Muto, T., Tanaka, H., Tanigawa, T., Takeuchi, T., Tsukagoshi, T., & Momose, M.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 43 (7 pp)
  • DOI: 10.1093/pasj/psw037
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Organic dust in galaxies (2016)
  • Author(s): Onaka, T.
  • Journal Title: Journal of Physics Conference Series Volume: 728 Pages: 062001
  • DOI: 10.1088/1742-6596/728/6/062001
  • Peer Reviewed / Open Access
• [Journal Article] Near-infrared views of dust in planetary nebulae: AKARI/IRC NIR spectral atlas of Galactic PNe (2016)
  • Author(s): Ohsawa, R., Onaka, T., Sakon, I., Mori, T., Matsuura, M., Yamamura, I., & Kaneda, H.
  • Journal Title: Journal of Physics Conference Series Volume: 728 Pages: 072010
  • DOI: 10.1088/1742-6596/728/7/072010
  • Peer Reviewed / Open Access
• [Journal Article] The Intrinsic Abundance Ratio and X-factor of CO Isotopologues in L 1551 Shielded from FUV Photodissociation (2016)
  • Author(s): Lin, S.-J., Shimajiri, Y., Hara, C., Lai, S.-P., Nakamura, F., Sugitani, K., Kawabe, R., Kitamura, Y., Yoshida, A., Tatei, H., Akashi, T., Higuchi, A. E., & Tsukagoshi, T.
  • Journal Title: The Astrophysical Journal Volume: 826 Pages: 193 (18 pp)
  • DOI: 10.3847/0004-637X/826/2/193
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Detection of a Hot Molecular Core in the Large Magellanic Cloud with ALMA (2016)
  • Author(s): Shimonishi, T., Onaka, T., Kawamura, A., & Aikawa, Y.
  • Journal Title: The Astrophysical Journal Volume: 827 Pages: 72 (20 pp)
  • DOI: 10.3847/0004-637X/827/1/72
  • Peer Reviewed
• [Journal Article] Extreme asymmetry in the polarized disk of V1247 Orionis* (2016)
  • Author(s): Ohta, Y., Fukagawa, M., Sitko, M. L. et al. (63 authors)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 53 (12 pp)
  • DOI: 10.1093/pasj/psw051
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Reply to ”Comment on ‘Simple improvements to classical bubble nucleation models” (2016)
  • Author(s): Tanaka, K. K., Tanaka, H., Angelil, R., & Diemand, J.
  • Journal Title: Physical Review E Volume: 94 Pages: 026802
  • DOI: 10.1103/PhysRevE.94.026802
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Constraining the Movement of the Spiral Features and the Locations of Planetary Bodies within the AB Aur System (2016)
  • Author(s): Lomax, J. R., Wisniewski, J. P., Grady, C. A. et al. (57 authors)
  • Journal Title: The Astrophysical Journal Volume: 828 Pages: 2 (8 pp)
  • DOI: 10.3847/0004-637X/828/1/2
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] AKARI Near-infrared Spectroscopy of the Extended Green Object G318.05+0.09: Detection of CO Fundamental Ro-vibrational Emission (2016)
  • Author(s): Onaka, T., Mori, T., Sakon, I., & Ardaseva, A.
  • Journal Title: The Astrophysical Journal Volume: 829 Pages: 106 (7 pp)
  • DOI: 10.3847/0004-637X/829/2/106
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] A Gap with a Deficit of Large Grains in the Protoplanetary Disk around TW Hya (2016)
  • Author(s): Tsukagoshi, T., Nomura, H., Muto, T., Kawabe, R., Ishimoto, D., Kanagawa, K. D., Okuzumi, S., Ida, S., Walsh, C., & Millar, T. J.
  • Journal Title: The Astrophysical Journal Letters Volume: 829 Pages: L35 (6 pp)
  • DOI: 10.3847/2041-8205/829/2/L35
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Discovery of a Hot Corino in the Bok Globule B335 (2016)
  • Author(s): Imai, M., Sakai, N., Oya, Y., Lopez-Sepulcre, A., Watanabe, Y., Ceccarelli, C., Lefloch, B., Caux, E., Vastel, C., Kahane, C., Sakai, T., Hirota, T., Aikawa, Y.
  • Journal Title: Astrophysical Journal Letters Volume: 830 Pages: L37 (7 pp)
  • DOI: 10.3847/2041-8205/830/2/L37
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA Reveals the Anatomy of the mm-sized Dust and Molecular Gas in the HD 97048 Disk (2016)
  • Author(s): Walsh, C., Juhasz, A., Meeus, G., Dent, W. R. F., Maud, L. T., Aikawa, Y., Millar, T. J., & Nomura, H.
  • Journal Title: The Astrophysical Journal Volume: 831 Pages: 200 (15 pp)
  • DOI: 10.3847/0004-637X/831/2/200
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Submillimeter Polarization Observation of the Protoplanetary Disk around HD 142527 (2016)
  • Author(s): Kataoka, A., Tsukagoshi, T., Momose, M., Nagai, H., Muto, T., Dullemond, C. P., Pohl, A., Fukagawa, M., Shibai, H., Hanawa, T., & Murakawa, K.
  • Journal Title: The Astrophysical Journal Letters Volume: 831 Pages: L12 (6 pp)
  • DOI: 10.3847/2041-8205/831/2/L12
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Mid-infrared vibrational study of deuterium-containing PAH variants (2016)
  • Author(s): Buragohain, M., Pathak, A., Sarre, P., Onaka, T., & Sakon, I.
  • Journal Title: Planetary and Space Science Volume: 133 Pages: 97-106
  • DOI: 10.1016/j.pss.2016.05.001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Submillimeter Observation of Jupiter’s Stratospheric Composition: Detection of Carbon Monosulfide (J=7-6) 19 Years After the Cometary Impact (2016)
  • Author(s): Iino, T., Ohyama, H., Hirahara, Y., Takahashi, T., & Tsukagoshi, T.
  • Journal Title: The Astronomical Journal Volume: 152 Pages: 179 (5 pp)
  • DOI: 10.3847/0004-6256/152/6/179
  • Peer Reviewed
• [Journal Article] A substellar companion to Pleiades HII 3441 (2016)
  • Author(s): Konishi, M., Matsuo, T., Yamamoto, K. et al. (58 authors)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 92 (9 pp)
  • DOI: 10.1093/pasj/psw083
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Discovery of a Disk Gap Candidate at 20 AU in TW Hydrae (2015)
  • Author(s): Akiyama, E., Muto, T., Kusakabe, N., et al. (57 authors)
  • Journal Title: The Astrophysical Journal Letters Volume: 802 Pages: L17(5 pp)
  • DOI: 10.1088/2041-8205/802/2/L17
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evidence for DCO+ as a Probe of Ionization in the Warm Disk Surface (2015)
  • Author(s): Favre, C., Bergin, E. A., Cleeves, L. I., Hersant, F., Qi, C., & Aikawa, Y.
  • Journal Title: The Astrophysical Journal Letters Volume: 802 Pages: L23 (6pp)
  • DOI: 10.1088/2041-8205/802/2/L23
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Methane Clathrates in the Solar System (2015)
  • Author(s): Mousis, O., Chassefi`ere, E., Holm, N. G., Bouquet, A., Waite, J. H., Geppert, W. D., Picaud, S., Aikawa, Y., Ali-Dib, M., Charlou, J.-L., & Rousselot, P.
  • Journal Title: Astrobiology Volume: 15 Pages: 308-326
  • DOI: 10.1089/ast.2014.1189
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Crater-ray formation by impact-induced ejecta particles (2015)
  • Author(s): Kadono, T., Suzuki, A. I., Wada, K., Mitani, N. K., Yamamoto, S., Arakawa, M., Sugita, S., Haruyama, J., & Nakamura, A. M.
  • Journal Title: Icarus Volume: 250 Pages: 215-221
  • DOI: 10.1016/j.icarus.2014.11.030
  • Peer Reviewed
• [Journal Article] The comet-like composition of a protoplanetary disk as revealed by complex cyanides (2015)
  • Author(s): Oberg, K. I., Guzman, V. V., Furuya, K., Qi, C., Aikawa, Y., Andrews, S. M., Loomis, R., & Wilner, D. J.
  • Journal Title: Nature Volume: 520 Pages: 198-201
  • DOI: 10.1038/nature14276
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Near-infrared image of the debris disk around HD 15115 (2015)
  • Author(s): Sai, S., Itoh, Y., Fukagawa, M., Shibai, H., & Sumi, T.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Pages: 20 (10 pp)
  • DOI: 10.1093/pasj/psu152
  • Peer Reviewed
• [Journal Article] Mixed aliphatic and aromatic composition of evaporating very small grains in NGC 7023 revealed by the 3.4/3.3 μm ratio (2015)
  • Author(s): Pilleri, P., Joblin, C., Boulanger, F., & Onaka, T.
  • Journal Title: Astronomy & Astrophysics Volume: 577 Pages: A16 (8 pp)
  • DOI: 10.1051/0004-6361/201425590
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-resolution 25 μm Imaging of the Disks around Herbig Ae/Be Stars (2015)
  • Author(s): Honda, M., Maaskant, K., Okamoto, Y. K., Kataza, H., Yamashita, T., Miyata, T., Sako, S., Fujiyoshi, T., Sakon, I., Fujiwara, H., Kamizuka, T., Mulders, G. D., Lopez-Rodriguez, E., Packham, C., & Onaka, T.,
  • Journal Title: The Astrophysical Journal Volume: 804 Pages: 143 (8 pp)
  • DOI: 10.1088/0004-637X/804/2/143
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interstellar dust in the Local Cloud surrounding the Sun (2015)
  • Author(s): Kimura, H.,
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 449 Pages: 2250-2258
  • DOI: 10.1093/mnras/stv427
  • Peer Reviewed
• [Journal Article] Mass Estimates of a Giant Planet in a Protoplanetary Disk from the Gap Structures (2015)
  • Author(s): Kanagawa, K. D., Muto, T., Tanaka, H., Tanigawa, T., Takeuchi, T., Tsukagoshi, T., & Momose, M.
  • Journal Title: The Astrophysical Journal Letters Volume: 806 Pages: L15 (6 pp)
  • DOI: 10.1088/2041-8205/806/1/L15
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A study on the mid-infrared sources that dramatically brightened (2015)
  • Author(s): Onozato, H., Ita, Y., Ono, K., Fukagawa, M., Yanagisawa, K., Izumiura, H., Nakada, Y., & Matsunaga, N.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Pages: 39 (26 pp)
  • DOI: 10.1093/pasj/psv008
  • Peer Reviewed
• [Journal Article] Systematic Variations in CO2/H2O Ice Abundance Ratios in Nearby Galaxies Found with AKARI Near-infrared Spectroscopy (2015)
  • Author(s): Yamagishi, M., Kaneda, H., Ishihara, D., Oyabu, S., Onaka, T., Shimonishi, T., & Suzuki, T.,
  • Journal Title: The Astrophysical Journal Volume: 807 Pages: 29 (8 pp)
  • DOI: 10.1088/0004-637X/807/1/29
  • Peer Reviewed
• [Journal Article] Analytical Formulae of Molecular Ion Abundances and the N2H+ Ring in Protoplanetary Disks (2015)
  • Author(s): Aikawa, Y., Furuya, K., Nomura, H., & Qi, C.
  • Journal Title: The Astrophysical Journal Volume: 807 Pages: 120 (19 pp)
  • DOI: 10.1088/0004-637X/807/2/120
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Millimeter-wave Polarization of Protoplanetary Disks due to Dust Scattering (2015)
  • Author(s): Kataoka, A., Muto, T., Momose, M., Tsukagoshi, T., Fukagawa, M., Shibai, H., Hanawa, T., Murakawa, K., & Dullemond, C. P.
  • Journal Title: The Astrophysical Journal Volume: 809 Pages: 78 (15 pp)
  • DOI: 10.1088/0004-637X/809/1/78
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Homogeneous SPC/E water nucleation in large molecular dynamics simulations (2015)
  • Author(s): Angelil, R., Diemand, J., Tanaka, K. K., & Tanaka, H.
  • Journal Title: Journal of Chemical Physics Volume: 143 Pages: 064507
  • DOI: 10.1063/1.4928055
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Simple improvements to classical bubble nucleation models (2015)
  • Author(s): Tanaka, K. K., Tanaka, H., Angelil, R., & Diemand, J.
  • Journal Title: Physical Review E Volume: 92 Pages: 022401
  • DOI: 10.1103/PhysRevE.92.022401
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Double DCO+ Rings Reveal CO Ice Desorption in the Outer Disk Around IM Lup (2015)
  • Author(s): Oberg, K. I., Furuya, K., Loomis, R., Aikawa, Y., Andrews, S. M., Qi, C., van Dishoeck, E. F., & Wilner, D. J.
  • Journal Title: The Astrophysical Journal Volume: 810 Pages: 112 (7 pp)
  • DOI: 10.1088/0004-637X/810/2/112
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Next-Generation Infrared Astronomy Mission SPICA Under the New Framework (2015)
  • Author(s): Nakagawa, T., Shibai, H., Onaka, T., Matsuhara, H., Kaneda, H., & Kawakatsu, Y.
  • Journal Title: Publications of the Korean Astronomical Society Volume: 30 Pages: 621-624
  • DOI: 10.5303/PKAS.2015.30.2.621
  • Peer Reviewed
• [Journal Article] ALMA Observations of the Transition from Infall Motion to Keplerian Rotation around the Late-phase Protostar TMC-1A (2015)
  • Author(s): Aso, Y., Ohashi, N., Saigo, K., Koyamatsu, S., Aikawa, Y., Hayashi, M., Machida, M. N., Saito, M., Takakuwa, S., Tomida, K., Tomisaka, K., & Yen, H.-W.,
  • Journal Title: The Astrophysical Journal Volume: 812 Pages: 27 (20 pp)
  • DOI: 10.1088/0004-637X/812/1/27
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Cohesion of Amorphous Silica Spheres: Toward a Better Understanding of The Coagulation Growth of Silicate Dust Aggregates (2015)
  • Author(s): Kimura, H., Wada, K., Senshu, H., & Kobayashi, H.
  • Journal Title: The Astrophysical Journal Volume: 812 Pages: 67 (12 pp)
  • DOI: 10.1088/0004-637X/812/1/67
  • Peer Reviewed
• [Journal Article] Cosmic Dust VII (2015)
  • Author(s): Kimura, H., Kolokolova, L., Li, A., Augereau, J.-C., Kaneda, H., & Jager, C.
  • Journal Title: Planetary and Space Science Volume: 116 Pages: 1-5
  • DOI: 10.1016/j.pss.2015.03.002
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Photoelectric dust levitation around airless bodies revised using realistic photoelectron velocity distributions (2015)
  • Author(s): Senshu, H., Kimura, H., Yamamoto, T., Wada, K., Kobayashi, M., Namiki, N., & Matsui, T.
  • Journal Title: Planetary and Space Science Volume: 116 Pages: 18-29
  • DOI: 10.1016/j.pss.2015.03.009
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Ejecta curtain radiative transfer modeling for probing its geometry and dust optical properties (2015)
  • Author(s): Shalima, P., Wada, K., & Kimura, H.
  • Journal Title: Planetary and Space Science Volume: 116 Pages: 39-47
  • DOI: 10.1016/j.pss.2015.03.017
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Variations in the 3.3 μm feature and carbonaceous dust in AKARI data (2015)
  • Author(s): Hammonds, M., Mori, T., Usui, F., & Onaka, T.
  • Journal Title: Planetary and Space Science Volume: 116 Pages: 73-83
  • DOI: 10.1016/j.pss.2015.05.010
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Dust processing in the Carina nebula region (2015)
  • Author(s): Onaka, T., Mori, T. I., & Okada, Y.
  • Journal Title: Planetary and Space Science Volume: 116 Pages: 84-91
  • DOI: 10.1016/j.pss.2015.03.025
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A study of iron and dust in the supernova remnant IC 443 (2015)
  • Author(s): Kokusho, T., Nagayama, T., Kaneda, H., Ishihara, D., Lee, H.-G., & Onaka, T.
  • Journal Title: Planetary and Space Science Volume: 116 Pages: 92-96
  • DOI: 10.1016/j.pss.2015.04.009
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Detailed structure of the outer disk around HD 169142 with polarized light in H-band (2015)
  • Author(s): Momose, M., Morita, A., Fukagawa, M. et al. (62 authors)
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Pages: 83 (16 pp)
  • DOI: 10.1093/pasj/psv051
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Study of infrared excess from circumstellar disks in binaries with Spitzer/IRAC (2015)
  • Author(s): Itoh, Y., Fukagawa, M., Shibai, H., Sumi, T., & Yamamoto, K.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Pages: 88 (17 pp)
  • DOI: 10.1093/pasj/psv071
  • Peer Reviewed
• [Journal Article] Experimental study on impact-induced seismic wave propagation through granular materials (2015)
  • Author(s): Yasui, M., Matsumoto, E., & Arakawa, M.
  • Journal Title: Icarus Volume: 260 Pages: 320-331
  • DOI: 10.1016/j.icarus.2015.07.032
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Theoretical study of deuteronated PAHs as carriers for IR emission features in the ISM (2015)
  • Author(s): Buragohain, M., Pathak, A., Sarre, P., Onaka, T., & Sakon, I.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 454 Pages: 193-204
  • DOI: 10.1093/mnras/stv1946
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Water deuteration and ortho-to-para nuclear spin ratio of H2 in molecular clouds formed via the accumulation of H I gas (2015)
  • Author(s): Furuya, K., Aikawa, Y., Hincelin, U., Hassel, G. E., Bergin, E. A., Vasyunin, A. I., & Herbst, E.
  • Journal Title: Astronomy & Astrophysics Volume: 584 Pages: A124 (18 pp)
  • DOI: 10.1051/0004-6361/201527050
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Resolving the HD 100546 Protoplanetary System with the Gemini Planet Imager: Evidence for Multiple Forming, Accreting Planets (2015)
  • Author(s): Currie, T., Cloutier, R., Brittain, S., Grady, C., Burrows, A., Muto, T., Kenyon, S. J., & Kuchner, M. J.,
  • Journal Title: The Astrophysical Journal Letters Volume: 814 Pages: L27 (6 pp)
  • DOI: 10.1088/2041-8205/814/2/L27
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spectral-line Survey at Millimeter and Submillimeter Wavelengths toward an Outflow-shocked Region, OMC 2-FIR 4 (2015)
  • Author(s): Shimajiri, Y., Sakai, T., Kitamura, Y., Tsukagoshi, T., Saito, M., Nakamura, F., Momose, M., Takakuwa, S., Yamaguchi, T., Sakai, N., Yamamoto, S., & Kawabe, R.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 221 Pages: 31 (31 pp)
  • DOI: 10.1088/0067-0049/221/2/31
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Resolution dependence of disruptive collisions between planetesimals in the gravity regime (2015)
  • Author(s): Genda, H., Fujita, T., Kobayashi, H., Tanaka, H., & Abe, Y.
  • Journal Title: Icarus Volume: 262 Pages: 58-66
  • DOI: 10.1016/j.icarus.2015.08.029
  • Peer Reviewed
• [Journal Article] Ejecta velocity distribution of impact craters formed on quartz sand: Effect of projectile density on crater scaling law (2015)
  • Author(s): Tsujido, S., Arakawa, M., Suzuki, A. I., & Yasui, M.
  • Journal Title: Icarus Volume: 262 Pages: 79-92
  • DOI: 10.1016/j.icarus.2015.08.035
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Impact of the initial disk mass function on the disk fraction (2015)
  • Author(s): Ohsawa, R., Onaka, T., & Yasui, C.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Pages: 120 (9 pp)
  • DOI: 10.1093/pasj/psv094
  • Peer Reviewed
• [Journal Article] Significant gas-to-dust ratio asymmetry and variation in the disk of HD 142527 and the indication of gas depletion (2015)
  • Author(s): Muto, T., Tsukagoshi, T., Momose, M., Hanawa, T., Nomura, H., Fukagawa, M., Saigo, K., Kataoka, A., Kitamura, Y., Takahashi, S. Z., Inutsuka, S.-i., Takeuchi, T., Kobayashi, H., Akiyama, E., Honda, M., Fujiwara, H., & Shibai, H.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 67 Pages: 122 (28 pp)
  • DOI: 10.1093/pasj/psv098
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] HL Tau: a revolution in the study on the formation of planetary systems (2016)
  • Author(s): 百瀬宗武
  • Organizer: 日本天文学会春季年会特別セッション
  • Place of Presentation: 東京都立大学
  • Year and Date: 2016-03-14 – 2016-03-14
  • Invited
• [Presentation] High velocity impact experiments on oblique impacts of planetary bodies and impact cratering on frozen sand (2016)
  • Author(s): M. Arakawa
  • Organizer: Exoplanets and Disks: Their Formation and Diversity III
  • Place of Presentation: ホテル日航八重山，石垣市
  • Year and Date: 2016-02-22 – 2016-02-22
  • Int'l Joint Research / Invited
• [Presentation] Chemistry in the disk formation (2016)
  • Author(s): Y. Aikawa
  • Organizer: Workshop on Astrochemistry in Star and Planet Formation
  • Place of Presentation: Riken
  • Year and Date: 2016-02-16 – 2016-02-16
  • Int'l Joint Research / Invited
• [Presentation] Chemistry in the Forming Disks (2016)
  • Author(s): Y. Aikawa
  • Organizer: (Workshop, ALMA-Cycle 4, Astrochemistry as a diagnostic of Star and Planet Formation
  • Place of Presentation: Observatoire de Bordeaux, France
  • Year and Date: 2016-01-12 – 2016-01-13
  • Int'l Joint Research / Invited
• [Presentation] 原始惑星系円盤における力学過程と詳細構造の観測 (2015)
  • Author(s): 武藤恭之
  • Organizer: 理論懇シンポジウム2015「宇宙における天体形成から生命まで」
  • Place of Presentation: 大阪大学
  • Year and Date: 2015-12-23 – 2015-12-25
  • Invited
• [Presentation] ALMA高解像度撮像が明かしつつある惑星形成過程 (2015)
  • Author(s): 百瀬宗武
  • Organizer: 理論懇シンポジウム 2015「宇宙における天体形成から生命まで」
  • Place of Presentation: 大阪大学
  • Year and Date: 2015-12-23 – 2015-12-25
  • Invited
• [Presentation] 星・惑星系形成領域における有機物：理論と観測の現状 (2015)
  • Author(s): 相川祐理
  • Organizer: 理論懇シンポジウム 2015「宇宙における天体形成から生命まで」
  • Place of Presentation: 大阪大学
  • Year and Date: 2015-12-23 – 2015-12-25
  • Invited
• [Presentation] Connecting Disk Theory with High Resolution Observations (2015)
  • Author(s): T. Muto
  • Organizer: East Asia ALMA Science Workshop
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2015-12-09 – 2015-12-09
  • Int'l Joint Research / Invited
• [Presentation] Long baseline observations with ALMA: Impact by the image of HL Tau (2015)
  • Author(s): M. Momose
  • Organizer: ALMA/45m/ASTE/Mopra Users Meeting
  • Place of Presentation: 国立天文台三鷹
  • Year and Date: 2015-10-21 – 2015-10-21
  • Int'l Joint Research / Invited
• [Presentation] 原始惑星系円盤の力学と直接撮像観測 (2015)
  • Author(s): 武藤恭之
  • Organizer: 日本惑星科学会2015年度秋季講演会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2015-10-16 – 2015-10-16
  • Invited
• [Presentation] A review of recent observations of protoplanetary disks (2015)
  • Author(s): M. Fukagawa
  • Organizer: Protoplanetary Disk Dynamics and Planet Formation
  • Place of Presentation: JAMSTEC. 横浜市
  • Year and Date: 2015-09-29 – 2015-09-29
  • Int'l Joint Research / Invited
• [Presentation] 星・惑星系形成領域の星間化学：モデルとALMA観測 (2015)
  • Author(s): 相川祐理
  • Organizer: 日本地球化学会第62回年会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2015-09-16 – 2015-09-18
  • Invited
• [Presentation] Astrochemistry in star forming cores and protoplanetary disks (2015)
  • Author(s): 相川祐理
  • Organizer: 研究会「星形成の諸階層－銀河から惑星まで－」
  • Place of Presentation: フォレスト箱根
  • Year and Date: 2015-09-14 – 2015-09-16
  • Invited
• [Presentation] AKARI near-infrared spectroscopy of interstellar ices (2015)
  • Author(s): T. Onaka
  • Organizer: Focused Meeting 12, Bridging Laboratory Astrophysics and Astronomy, IAU General Assembly
  • Place of Presentation: Honolulu, Hawaii, U.S.A.
  • Year and Date: 2015-08-03 – 2015-08-05
  • Int'l Joint Research / Invited
• [Presentation] Astrochemical models of water in molecular clouds and protoplanetary disks (2015)
  • Author(s): Y. Aikawa
  • Organizer: Focus Meeting 15, International Astronomical Union General Assembly XXIX
  • Place of Presentation: Honolulu, Hawaii, U.S.A.
  • Year and Date: 2015-08-03 – 2015-08-05
  • Int'l Joint Research / Invited
• [Presentation] SPICA update (2015)
  • Author(s): T. Onaka
  • Organizer: FIR Surveyor Workshop
  • Place of Presentation: Pasadena, U.S.A.
  • Year and Date: 2015-06-03 – 2015-06-05
  • Int'l Joint Research / Invited
• [Remarks] 水の凝縮核生成の大規模分子動力学シミュレーションー室内実験レベルの低生成率での凝縮核生成の再現に成功
  • URL: http://www.hokudai.ac.jp/news/150819_lowtem_pr.pdf
• [Remarks] 銀河系ホットコアを初検出
  • URL: http://www.s.u-tokyo.ac.jp/ja/press/2016/4996/
• [Remarks] 巨大氷惑星の形成現場を捉えた ―アルマ望遠鏡で見つけた海王星サイズの惑星形成の証拠－
  • URL: http://alma.mtk.nao.ac.jp/j/news/pressrelease/201609148022.html
• [Remarks] アルマ望遠鏡、惑星の種の成長に迫る
  • URL: http://alma.mtk.nao.ac.jp/j/news/pressrelease/201612058078.html
• [Funded Workshop] International Workshop on "Exoplanets and Disks: Their Formation and Diversity III" (2016)
  • Place of Presentation: ホテル日航八重山
  • Year and Date: 2016-02-22 – 2016-02-24