Volatile molecules in the formation of stars and planetary systems: abundances, isotopes and gas/ice ratios

• Project/Area Number: 23540266
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: University of Tsukuba (2015-2016); Kobe University (2011-2014)
• Principal Investigator: Aikawa Yuri 筑波大学, 計算科学研究センター, 教授 (40324909)
• Project Period (FY): 2011-04-28 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 星間化学 / 星形成 / 原始惑星系円盤 / 惑星形成

Outline of Final Research Achievements

We studied the evolution of interstellar matter in the star- and planetary system-formation, focusing on (1) enhancement and reset of isotope ratios, (2) shock chemistry at the disk formation, and (3) chemistry around the snow lines in protoplanetary disks. On the first topic, we succeeded in constructing a comprehensive model on the evolution of molecular D/H ratio (especially water) from molecular cloud formation to protoplanetary disks. Secondary, we evaluated the critical velocity of colliding flows for the ice desorption as a function of gas density. On the third topic, we performed numerical calculations of molecular evolution in disks, and obtained analytical formulas of abundances of major ion molecules, including N2H+, which is considered to be a tracer of CO snow line. We also investigated the variation of elemental abundances (e.g. C/O ratio) caused by the gas-dust decoupling around the snow line; it is summarized as a student's Master thesis work, but needs further studies.

Research Products

• [Int'l Joint Research] Leiden Observatory(Netherlands)
• [Int'l Joint Research] Academia Sinica(台湾)
• [Int'l Joint Research] アリゾナ大学(米国)
• [Int'l Joint Research] Leiden Observatory(Netherlands)
• [Int'l Joint Research] Center for Astrophysics/University of Virginia(米国)
• [Journal Article] Effects of Grain Growth on Molecular Abundances in Young Stellar Objects (2017)
  • Author(s): Harada, N., Hasegawa, Y., Aikawa, Y., Hirashita, H., Liu, H. B., Hirano, N.
  • Journal Title: The Astrophysical Journal Volume: 837 Issue: 1 Pages: 78-78
  • DOI: 10.3847/1538-4357/aa602f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Chemistry in a Forming Protoplanetary Disk: Main Accretion Phase (2016)
  • Author(s): Yoneda, H., Tsukamoto, Y., Furuya, K., Aikawa, Y.
  • Journal Title: The Astrophysical Journal Volume: 833 Issue: 1 Pages: 105-105
  • DOI: 10.3847/1538-4357/833/1/105
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Following the Interstellar History of Carbon: From the Interiors of Stars to the Surfaces of Planets (2016)
  • Author(s): Ziurys, L. M., Halfen, D. T., Geppert, W., Aikawa, Y
  • Journal Title: Astrobiology Volume: 16 Issue: 12 Pages: 997-1012
  • DOI: 10.1089/ast.2016.1484
  • 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 Issue: 1 Pages: 1-20
  • DOI: 10.3847/0004-637x/827/1/72
  • Peer Reviewed / Open Access
• [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 Issue: 1 Pages: L10-L10
  • DOI: 10.3847/2041-8205/823/1/l10
  • Peer Reviewed / Int'l Joint Research
• [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 Volume: 802 Issue: 2 Pages: L23-L23
  • DOI: 10.1088/2041-8205/802/2/l23
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA Observations of of the IRDC Clump G34.43+00.24 MM3: DNC/HNC Ratio (2015)
  • Author(s): Sakai, T., Sakai, N., Furuya, K., Aikawa, Y., Hirota, T., Foster, J. B., Sanhueza, P., Jackson, J. M., Yamamoto, S.
  • Journal Title: The Astrophysical Journal Volume: 803 Issue: 2 Pages: 70-70
  • DOI: 10.1088/0004-637x/803/2/70
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The comet-like composition of a protoplanetary disk as revealed by complex cyanides (2015)
  • Author(s): Oberg, Karin I., Guzman, Viviana V., Furuya, Kenji, Qi, Chunhua, Aikawa, Yuri, Andrews, Sean M., Loomis, Ryan, Wilner, David J.
  • Journal Title: Nature Volume: 520 Issue: 7546 Pages: 198-201
  • DOI: 10.1038/nature14276
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Analytical Formulae of Molecular Ion Abundances and the N2H+ Ring in Protoplanetary Disks (2015)
  • Author(s): Aikawa, Yuri, Furuya, Kenji, Nomura, Hideko, Qi, Chunhua
  • Journal Title: The Astrophysical Journal Volume: 807 Issue: 2 Pages: 120-120
  • DOI: 10.1088/0004-637x/807/2/120
  • NAID: 120007136287
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [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-A124
  • DOI: 10.1051/0004-6361/201527050
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Evaporation of Grain-surface Species by Shock Waves in a Protoplanetary Disk (2015)
  • Author(s): Aota, T., Inoue, T. and Aikawa, Y.
  • Journal Title: The Astrophysical Journal Volume: 799 Issue: 2 Pages: 141-150
  • DOI: 10.1088/0004-637x/799/2/141
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Chemical modelling of water deuteration in IRAS16293-2422 (2014)
  • Author(s): Wakelam, V., Vastel, C., Aikawa, Y., Coutens, A., Bottinelli, S., Caux, E.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 445 Issue: 3 Pages: 2854-2871
  • DOI: 10.1093/mnras/stu1920
  • Peer Reviewed / Open Access
• [Journal Article] Formation of a Keplerian Disk in the Infalling Envelope around L1527 IRS: Transformation from Infalling Motions to Kepler Motions (2014)
  • Author(s): Nagayoshi Ohashi, Kazuya Saigo, Yusuke Aso, Yuri Aikawa, Shin Koyamatsu, Masahiro N. Machida, Masao Saito, Sanemichi Z. Takahashi, Shigehisa Takakuwa,Kengo Tomida, Kohji Tomisaka, and Hsi-Wei Yen
  • Journal Title: The Astrophysical Journal Volume: 796 Issue: 2 Pages: 131-141
  • DOI: 10.1088/0004-637x/796/2/131
  • Peer Reviewed / Open Access
• [Journal Article] ALMA Observations of Infalling Flows toward the Keplerian Disk around the Class I Protostar L1489 IRS (2014)
  • Author(s): H.-W. Yen, S. Takakuwa, N. Ohashi, Y. Aikawa, Y. Aso, S. Koyamatsu, M.N. Machida, K. Saigo, M. Saito, K. Tomida, K. Tomisaka
  • Journal Title: The Astrophysical Journal Volume: 793 Issue: 1 Pages: 1-1
  • DOI: 10.1088/0004-637x/793/1/1
  • Peer Reviewed / Open Access
• [Journal Article] A Chemical View of Protostellar-disk Formation in L1527 (2014)
  • Author(s): Sakai, N., Oya, Y., Sakai, T., Watanabe, Y., Hirota, T., Ceccarelli, C., Kahane, C., Lopez-Sepulcre, A., Lefloch, B., Vastel, C., Bottinelli, S., Caux, E., Coutens, A., Aikawa, Y., Takakuwa, S., Ohashi, N., Yen, H-W, Yamamoto, S.
  • Journal Title: The Astrophysical Journal Lettres Volume: 791 Issue: 2 Pages: 38-38
  • DOI: 10.1088/2041-8205/791/2/l38
  • Peer Reviewed
• [Journal Article] ALMA Hints at the Presence of two Companions in the Disk around HD 100546 (2014)
  • Author(s): Walsh, C., Juhasz, A., Pinilla, P., Harsono, D., Mathews, G. S., Dent, W. R. F., Hogerheijde, M. R., Birnstiel, T., Meeus, G., Nomura, H., Aikawa, Y., Millar, T. J., Sandell, G.
  • Journal Title: The Astrophysical Journal Lettres Volume: 791 Issue: 1 Pages: 6-6
  • DOI: 10.1088/2041-8205/791/1/l6
  • Peer Reviewed / Open Access
• [Journal Article] Reprocessing of Ices in Turbulent Protoplanetary Disks: Carbon and Nitrogen Chemistry (2014)
  • Author(s): Furuya, K. and Aikawa, Y.
  • Journal Title: The Astrophysical Journal Volume: 790 Issue: 2 Pages: 97-97
  • DOI: 10.1088/0004-637x/790/2/97
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] CH in absorption in IRAS 16293-2422 (2014)
  • Author(s): Bottinelli, S., Wakelam, V., Caux, E., Vastel, C., Aikawa, Y., Ceccarelli, C.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 441 Issue: 3 Pages: 1964-1973
  • DOI: 10.1093/mnras/stu700
  • Peer Reviewed / Open Access
• [Journal Article] Change in the Chemical Composition of Infalling Gas Forming a Disk around a Protostar (2014)
  • Author(s): N. Sakai, T. Sakai, T. Hirota, Y. Watanabe, C. Ceccarelli, C. Kahane, S. Bottinelli, E. Caux, K, Demyk, C. Vastel, A. Coutens, V. Taquet, N. Ohashi, S. Takakuwa, H.-W. Yen, Y. Aikawa, and S.Yamamoto
  • Journal Title: Nature Volume: 507 Issue: 7490 Pages: 78-80
  • DOI: 10.1038/nature13000
  • Peer Reviewed
• [Journal Article] Complex organic molecules in protoplanetary disks (2014)
  • Author(s): Walsh, C., Millar, T. J., Nomura, H., Herbst, E., Widicus Weaver, S., Aikawa, Y., Laas, J. C., Vasyunin, A. I.
  • Journal Title: Astronomy & Astrophysics Volume: 563 Pages: 33-67
  • DOI: 10.1051/0004-6361/201322446
  • Peer Reviewed
• [Journal Article] Interplay of Chemistry and Dynamics in the Low-Mass Star Formation (2013)
  • Author(s): Aikawa, Y.
  • Journal Title: Chemical Reviews Volume: 113 Issue: 12 Pages: 8961-8980
  • DOI: 10.1021/cr4003193
  • Peer Reviewed
• [Journal Article] Water in protoplanetary disks : deuteration and turbulent mixing (2013)
  • Author(s): Furuya, K., Aikawa, Y., Nomura, H., Hersant. F., Wakelam, V.
  • Journal Title: The Astrophysical Journal Volume: 779 Issue: 1 Pages: 11-29
  • DOI: 10.1088/0004-637x/779/1/11
  • Peer Reviewed
• [Journal Article] A Survey of H2O, CO2, and CO Ice Features toward Background Stars and low-mass Young Stellar Objects Using AKARI (2013)
  • Author(s): Noble, J. A,...Sakon, I. 他3名
  • Journal Title: The Astrophysical Journal Volume: Volume 775, Issue 2 Issue: 2 Pages: 85-108
  • DOI: 10.1088/0004-637x/775/2/85
  • Peer Reviewed
• [Journal Article] Thermal Instability behind a Shock Wave in H I and Molecular Clouds (2013)
  • Author(s): Aota, T. Inoue, T., Aikawa, Y.
  • Journal Title: The Astrophysical Journal Volume: 775 Issue: 1 Pages: 26-34
  • DOI: 10.1088/0004-637x/775/1/26
  • Peer Reviewed
• [Journal Article] Interstellar Detection of c-C3D2 (2013)
  • Author(s): Spezzano, S., Brunken, S., Schilke, P., Caselli, P., Menten, K. M., McCarthy, M. C., Bizzocchi, L., Trevino-Morales, S. P., Aikawa, Y., Schlemmer, S.
  • Journal Title: The Astrophysical Journal Letters Volume: 769 Issue: 2 Pages: 19-24
  • DOI: 10.1088/2041-8205/769/2/l19
  • Peer Reviewed
• [Journal Article] Molecular Evolution in the First Hydrostatic Core Phase Adapting Three-Dimensional Radiation Hydrodynamic Simulations (2013)
  • Author(s): Furuya, K., Aikawa, Y., Tomida, K., Matsumoto, T., Saigo, K., Tomisaka, K., Hersant, F., Wakelam, V.
  • Journal Title: New Trends in Radio Astronomy in the ALMA Era: The 30th Anniversary of Nobeyama Radio Observatory. ASP Conference Series Volume: 476 Pages: 385-386
• [Journal Article] Deuterated Water in Turbulent Protoplanetary Disks (2013)
  • Author(s): Furuya, K., Aikawa, Y., Nomura, H., Hersant, F., Wakelam, V.
  • Journal Title: New Trends in Radio Astronomy in the ALMA Era: The 30th Anniversary of Nobeyama Radio Observatory. ASP Conference Series Volume: 476 Pages: 383-384
• [Journal Article] Can Thermal Instability Grow behind a Shock Wave in HI and Molecular Clouds? (2013)
  • Author(s): Aota, T., Inoue, T., Aikawa, Y.
  • Journal Title: New Trends in Radio Astronomy in the ALMA Era: The 30th Anniversary of Nobeyama Radio Observatory. ASP Conference Series Volume: 476 Pages: 335-336
• [Journal Article] The Shock Chemistry of Phosphorus in the Shocked Region L1157 B1 (2013)
  • Author(s): Aota, T., Aikawa, Y
  • Journal Title: New Trends in Radio Astronomy in the ALMA Era: The 30th Anniversary of Nobeyama Radio Observatory. ASP Conference Series Volume: 476 Pages: 333-334
• [Journal Article] Chemical Models of Star-Forming Cores (2013)
  • Author(s): Aikawa, Y.
  • Journal Title: New Trends in Radio Astronomy in the ALMA Era: The 30th Anniversary of Nobeyama Radio Observatory. ASP Conference Series Volume: 476 Pages: 197-204
• [Journal Article] Phosphorus Chemistry in the Shocked Region L1157 B1 (2012)
  • Author(s): T. Aota
  • Journal Title: Astrophysical Journal Volume: 761 Issue: 1 Pages: 74-83
  • DOI: 10.1088/0004-637x/761/1/74
  • Peer Reviewed
• [Journal Article] From Prestellar to Protostellar Cores II. Time Dependence and Deuterium Fractionation (2012)
  • Author(s): Y. Aikawa
  • Journal Title: Astrophysical Journal Volume: 760 Issue: 1 Pages: 40-58
  • DOI: 10.1088/0004-637x/760/1/40
  • Peer Reviewed
• [Journal Article] Chemistry in the First Hydrostatic Core Stage by Adopting Three-Dimensional Radiation Hydrodynamic Simulations (2012)
  • Author(s): Furuya, K., Aikawa, Y., Tomida, K, Saigo, K., Tomisaka, K., Hersant, F., & Wakelam, V.
  • Journal Title: The Astrophysical Journal Volume: 758 Issue: 2 Pages: 86-105
  • DOI: 10.1088/0004-637x/758/2/86
  • Peer Reviewed
• [Journal Article] First Detection of Water Vapor in a Pre-stellar Core (2012)
  • Author(s): P. Caselli
  • Journal Title: Astrophysical Journal Letters Volume: 759 Issue: 2 Pages: 37-41
  • DOI: 10.1088/2041-8205/759/2/l37
  • Peer Reviewed
• [Journal Article] The 3 mm Spectral Line Survey toward the Lynds 1157 B1 Shocked Region. I. Data (2012)
  • Author(s): Yamaguchi, T., Takano S., Watanabe Y., Sakai N., Sakai T., Liu S-Y. Su Y-N., Hirano N., Takakuwa S., Aikawa Y., Nomura H., Yamamoto S.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 64 Pages: 105-149
  • NAID: 10031122912
  • Peer Reviewed
• [Journal Article] DNC/HNC Ratio of Massive Clumps in Early Evolutionary Stages of High-Mass Star Formation (2012)
  • Author(s): Sakai, T., Sakai, N., Furuya, K., Aikawa, Y., Hirota, T., & Yamamoto, S.
  • Journal Title: The Astrophysical Journal Volume: 747 Issue: 2 Pages: 140-149
  • DOI: 10.1088/0004-637x/747/2/140
  • Peer Reviewed
• [Journal Article] Chemical Processes in Protoplanetary Disks. II. On the Importance of Photochemistry and X-Ray Ionization (2012)
  • Author(s): Walsh, C
  • Journal Title: The Astrophysical Journal Volume: 747 Issue: 2 Pages: 114-132
  • DOI: 10.1088/0004-637x/747/2/114
  • Peer Reviewed
• [Journal Article] AKARI observations of ice absorption bands towards edge-on young stellar objects (2012)
  • Author(s): Aikawa, Y
  • Journal Title: Astronomy & Astrophysics Volume: 538 Pages: 57-68
  • DOI: 10.1051/0004-6361/201015999
  • Peer Reviewed
• [Journal Article] Hydrodynamical-Chemical Models from Prestellar Cores to Protostellar Cores (2011)
  • Author(s): Aikawa, Y
  • Journal Title: The Molecular Universe, Proceedings of the International Astronomical Union, IAU Symposium Volume: 280 Issue: S280 Pages: 33-42
  • DOI: 10.1017/s1743921311024847
• [Journal Article] Detection of Phosphorus Nitride in the Lynds 1157 B1 Shocked Region (2011)
  • Author(s): Yamaguchi, T., Takano, S., Sakai, N., Sakai, T., Liu, S.-Y., Su, Y.-N., Hirano, N., Takakuwa, S., Aikawa, Y., Nomura, H., Yamamoto, S.
  • Journal Title: PASJ Volume: 63
  • NAID: 10029860781
  • Peer Reviewed
• [Journal Article] Early Results of the 3mm Spectral Line Survey toward the Lynds 1157 B1 Shocked Region (2011)
  • Author(s): Sugimura, M, Yamaguchi, T., Sakai, T., Umemoto, T., Sakai, N., Takano, S., Aikawa, Y., Hirano, N., Liu, S.-Y., Millar, T.J.
  • Journal Title: PASJ Volume: 63 Pages: 459-472
  • NAID: 10029037370
  • Peer Reviewed
• [Journal Article] Carbon isotope and isotopomer fractionation in cold dense cloud cores (2011)
  • Author(s): Furuya, K., Aikawa, Y., Sakai, N., Yamamoto, S.
  • Journal Title: The Astrophysical Journal Volume: 731 Issue: 1 Pages: 38-47
  • DOI: 10.1088/0004-637x/731/1/38
  • Peer Reviewed
• [Journal Article] Water in Star-forming Regions with the Herschel Space Observatory (WISH). I. Overview of Key Program and First Results (2011)
  • Author(s): E.F.van Dishoeck
  • Journal Title: Publications of the Astronomical Society of the Pacific Volume: 123 Issue: 900 Pages: 138-170
  • DOI: 10.1086/658676
  • Peer Reviewed
• [Journal Article] Carbon-chain and Organic Molecules Around Very Low Luminosity Protostellar Objects of L1521F-IRS and IRAM 04191+1522 (2011)
  • Author(s): Takakuwa, S
  • Journal Title: The Astrophysical Journal Volume: 728 Issue: 2 Pages: 101-110
  • DOI: 10.1088/0004-637x/728/2/101
  • Peer Reviewed
• [Presentation] 星・惑星系形成領域の星間化学 (2017)
  • Author(s): 相川祐理
  • Organizer: シンポジウム「ダスト形成から惑星の多様性へ：宇宙 の物質進化における物理と化学のカップリング」
  • Place of Presentation: 東京大学小柴ホール
  • Year and Date: 2017-03-08
  • Invited
• [Presentation] Chemical modelling of protoplanetary disks (2016)
  • Author(s): Aikawa, Yuri
  • Organizer: European Conference on Laboratory Astrophysics ECLA2016 “Gas on the Rocks”
  • Place of Presentation: CSIC, Madrid, Spain
  • Year and Date: 2016-11-21
  • Int'l Joint Research / Invited
• [Presentation] Chemistry in a forming disk: main accretion phase (2016)
  • Author(s): Yoneda, H., Tsukamoto, Y., Furuya, K., Aikawa, Y.
  • Organizer: Workshop on Interstellar Matter 2016
  • Place of Presentation: 北海道大学低温科学研究所
  • Year and Date: 2016-10-19
  • Int'l Joint Research
• [Presentation] デブリ円盤での化学反応 (2016)
  • Author(s): 相川祐理
  • Organizer: ALMAワークショップ：デブリ円盤から太陽系へ」研究会
  • Place of Presentation: 千葉工大東京スカイツリータウンキャンパス
  • Year and Date: 2016-08-08
  • Invited
• [Presentation] 原始惑星系円盤の化学組成：最近のALMA観測の成果 (2016)
  • Author(s): 相川祐理
  • Organizer: 宇宙生命計算科学連携拠点第２回ワークショップ
  • Place of Presentation: 筑波大学計算科学研究センター
  • Year and Date: 2016-04-27
• [Presentation] Chemistry in the disk formation (2016)
  • Author(s): Yuri Aikawa
  • Organizer: Workshop on Astrochemistry in Star and Planet Formation
  • Place of Presentation: 理化学研究所物質科学研究棟，埼玉県和光市
  • Year and Date: 2016-02-16
  • Int'l Joint Research / Invited
• [Presentation] ALMA観測でとらえた原始星コアと原始惑星系円盤の揮発性物質 (2016)
  • Author(s): 相川祐理
  • Organizer: 日本地球惑星科学連合2016年大会／アルマによる惑星科学の新展開
  • Place of Presentation: 幕張メッセ
  • Invited
• [Presentation] 星・惑星系形成領域の分子進化：星間物質から惑星物質へ (2016)
  • Author(s): 相川祐理
  • Organizer: 日本地球惑星科学連合2016年大会 スペシャルレクチャー（西田賞受賞記念講演）
  • Place of Presentation: 幕張メッセ
  • Invited
• [Presentation] 惑星系形成領域の有機物進化 (2016)
  • Author(s): 相川祐理
  • Organizer: 日本地球惑星科学連合2016年大会／計算科学による惑星形成・進化・環境変動研究の新展開
  • Place of Presentation: 幕張メッセ
• [Presentation] 原始惑星系円盤の輝線観測とモデル (2015)
  • Author(s): 相川祐理
  • Organizer: 新領域「宇宙分子進化」研究会
  • Place of Presentation: 北海道大学低温科学研究所，北海道札幌市
  • Year and Date: 2015-10-21
• [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
  • Place of Presentation: 横浜国立大学教育人間科学部，神奈川県横浜市
  • Year and Date: 2015-09-18
  • Invited
• [Presentation] Analytical Formulas of Molecular Ion Abundances and N2H+ Ring in Protoplanetary Disks (2015)
  • Author(s): Yuri Aikawa
  • Organizer: IAU General Assembly, IAU symposium 315
  • Place of Presentation: Honululu Convention Center, Hawaii, USA
  • Year and Date: 2015-08-02
  • Int'l Joint Research
• [Presentation] Evaporation of Grain-surface Species by Shock Waves onto a Forming Protoplanetary Disk (2015)
  • Author(s): Yuri Aikawa
  • Organizer: IAU General Assembly, IAU symposium 315
  • Place of Presentation: Honululu Convention Center, Hawaii, USA
  • Year and Date: 2015-08-02
  • Int'l Joint Research
• [Presentation] 原始惑星系円盤のイオン化率とN2H+ リング (2015)
  • Author(s): 相川祐理
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 大阪大学、豊中市
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] 原始惑星系円盤形成時の化学組成進化 (2015)
  • Author(s): 米田晴玲、塚本裕介、古家健次、相川祐理
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 大阪大学、豊中市
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] Gas-Grain Chemical Models in the Star- and Planetary System Formation (2015)
  • Author(s): Aikawa, Y.
  • Organizer: Icy Grain Chemistry for Formation of Complex Organic Molecules: From Molecular Clouds to Protoplanetary Disks, Comets and Meteorites
  • Place of Presentation: Tokyo Institute of Technology, Tokyo
  • Year and Date: 2015-03-05 – 2015-03-07
  • Invited
• [Presentation] Chemistry in protoplanetary disks: ion molecules and deuterated molecules (2015)
  • Author(s): 相川祐理
  • Organizer: 新領域「系外惑星」B01+B02班研究会
  • Place of Presentation: 東工大、東京
  • Year and Date: 2015-02-16 – 2015-02-17
• [Presentation] N2H+ Ring in Protoplanetary Disk Models (2014)
  • Author(s): Aikawa, Y.
  • Organizer: Revolution in Astronomy with ALMA
  • Place of Presentation: Tokyo International Forum, Tokyo
  • Year and Date: 2014-12-08 – 2014-12-12
• [Presentation] Chemistry in a Forming Protoplanetary Disk (2014)
  • Author(s): Aikawa, Y.
  • Organizer: Workshop on Interstellar Matter 2014
  • Place of Presentation: Institute of Low Temperature Science, Hokkaido Univ., Sapporo
  • Year and Date: 2014-10-16 – 2014-10-18
• [Presentation] The N2H+ Ring in Protoplanetary Disks (2014)
  • Author(s): Aikawa, Y.
  • Organizer: Workshop on Interstellar Matter 2014
  • Place of Presentation: Institute of Low Temperature Science, Hokkaido Univ., Sapporo
  • Year and Date: 2014-10-16 – 2014-10-18
• [Presentation] 原始惑星系円盤の炭素、窒素の化学とN2H+リング (2014)
  • Author(s): 相川祐理
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 山形大学、山形
  • Year and Date: 2014-09-11 – 2014-09-13
• [Presentation] Volatiles and Organic Molecules: From Dense Cloud Cores to Protoplanetary Disks (2014)
  • Author(s): Aikawa, Y., Furuya, K., Aota, T., Yoneda, H., Tsukamoto, Y.
  • Organizer: Origins 2014
  • Place of Presentation: Nara Prefecture New Public Hall, Nara
  • Year and Date: 2014-07-06 – 2014-07-09
• [Presentation] 原始惑星系円盤の有機分子生成モデル：物理過程依存性～紫外線照射，質量降着，乱流拡散の影響～ (2014)
  • Author(s): 相川祐理、野村 英子
  • Organizer: 新領域「宇宙分子進化」第2回研究集会
  • Place of Presentation: 東京大学小柴ホール、東京
  • Year and Date: 2014-06-23 – 2014-06-24
• [Presentation] 円盤形成時の衝撃波による揮発性分子の昇華 (2014)
  • Author(s): 相川 祐理
  • Organizer: 新領域「宇宙分子進化」第2回研究集会
  • Place of Presentation: 東京大学小柴ホール、東京
  • Year and Date: 2014-06-23 – 2014-06-24
• [Presentation] 原始惑星系円盤における水の重水素比進化 (2013)
  • Author(s): 古家健次 相川祐理, 野村英子, Franck Hersant, Valentine Wakelam
  • Organizer: 日本天文学会2013年秋季年会
  • Place of Presentation: 東北大学
• [Presentation] 原始惑星系円盤における有機分子生成 (2013)
  • Author(s): 古家健次, 相川祐理
  • Organizer: 日本惑星科学会2013年秋季講演会
  • Place of Presentation: 石垣島市民会館
• [Presentation] Water in Protoplanetary Disks (2013)
  • Author(s): Aikawa, Y.
  • Organizer: Transformational Science with ALMA: From Dust to Rocks to Planets
  • Place of Presentation: Hawaii, USA
  • Invited
• [Presentation] Water in Protoplanetary Disks (2013)
  • Author(s): Aikawa, Y.
  • Organizer: Exoplanets and Disks: Their Formation and Diversity I
  • Place of Presentation: Hawaii, USA
• [Presentation] 原始惑星系円盤の化学進化とALMAの成果 (2013)
  • Author(s): 相川祐理
  • Organizer: 惑星科学と生命科学の融合 第４回研究会
  • Place of Presentation: 湘南国際村
  • Invited
• [Presentation] Methane, Carbon Chains and COMs in Low Mass Star-Formation (2013)
  • Author(s): Aikawa, Y.
  • Organizer: The Methane Balance - Formation and Destruction Processes on Planets, their Satellites and in the Interstellar Medium
  • Place of Presentation: International Space Science Institute, Ｂｅｒｎ, Ｓｗｉｔｚｅｒｌａｎｄ
• [Presentation] Water in Protoplanetary Disks (2013)
  • Author(s): Aikawa, Y., Furuya, K., Nomura, H., Hersant, F., Wakelam, V.
  • Organizer: Transformational Science with ALMA: From Dust to Rocks to Planets
  • Place of Presentation: Hilton Waikoloa Village, Hawaii
  • Invited
• [Presentation] Chemistry in Protoplanetary Disks (2012)
  • Author(s): 相川祐理
  • Organizer: 第８回太陽系外惑星大研究会
  • Place of Presentation: 熱海（ニューフジヤホテル）
  • Invited
• [Presentation] From Prestellar to Protostellar Cores: Time Dependence, Deuterium Fractionation, and Disk Formation (2012)
  • Author(s): Aikawa, Y., Wakelam, V., Hersant F., Garrod R.T., Herbst E.
  • Organizer: Revealing Evolution of Protoplanetary Disks in the ALMA Era
  • Place of Presentation: 京都大学
• [Presentation] From Prestellar to Protostellar Cores: Time Dependence, Deuterium Fractionation, and Disk Formation (2012)
  • Author(s): Aikawa, Y., Wakelam, V., Hersant F., Garrod R.T., Herbst E.
  • Organizer: The Early Phase of Star Formation 2012
  • Place of Presentation: Ringberg, Germany
• [Presentation] From Prestellar to Protostellar Cores (2012)
  • Author(s): Aikawa, Y., Wakelam, V., Hersant F., Garrod R.T., Herbst E.
  • Organizer: 39th COSPAR Scientific Assmbly
  • Place of Presentation: Mysore, India
  • Invited
• [Presentation] From Prestellar to Protostellar Cores: (2012)
  • Author(s): Aikawa, Y., Wakelam, V., Hersant F., Garrod R.T., Herbst E.
  • Organizer: Workshop on Interstellar Matter 2012
  • Place of Presentation: 北大低温研
• [Presentation] Chemical Models of Star Forming Cores (2012)
  • Author(s): Aikawa, Y.
  • Organizer: New Trends in Radio Astronomy in ALMA Era
  • Place of Presentation: 箱根（プリンス箱根）
  • Invited
• [Presentation] 乱流円盤中における水の重水素比進化 (2012)
  • Author(s): 古家健次, 相川祐理, 野村英子, Hersant F., Wakelam V.
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 神戸大学統合研究拠点
• [Presentation] Temporal variatin and D/H ratios of Hot Corino and WCCC species (2012)
  • Author(s): 相川祐理
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 龍谷大学
• [Presentation] Hydrodynamical-Chemical Models from Prestellar Cores to Protostellar Cores (2011)
  • Author(s): Aikawa, Y., Furuya, K., Wakelam, V., Hersant, F., Matsumoto, T., Saigo, K., Tomida, K., Tomisaka, K., Garrod, R.T., Herbst, E.
  • Organizer: IAU symposium 280: The Molecular Universe(招待講演)
  • Place of Presentation: Toledo, Spain
• [Presentation] Ice observation towards low-mass edge-on YSOs and background stars (2011)
  • Author(s): 相川祐理
  • Organizer: あかりによる我々の銀河系及び系外銀河の星間物質の研究会(招待講演)
  • Place of Presentation: 東京大学本郷キャンパス
• [Presentation] Chemistry in star-forming cores (2011)
  • Author(s): Aikawa, Y.
  • Organizer: International Conference on Interstellar Dust, Molecules and Chemistry(招待講演)
  • Place of Presentation: Pune University, India
• [Presentation] 星形成コアにおける分子組成進化：星なし高密度コアから原始星コアまで (2011)
  • Author(s): 相川祐理
  • Organizer: 第4 回アストロバイオロジーワークショップ(招待講演)
  • Place of Presentation: 神戸大学
• [Presentation] Chemistry in the formation of stars and planetary systems (2011)
  • Author(s): Aikawa, Y.
  • Organizer: Germany-Japan Round Table From the early universe to the evolution of life(招待講演)
  • Place of Presentation: Heidelberg, Germany
• [Presentation] Chemistry in Star-Forming Cores (2011)
  • Author(s): Aikawa, Y.
  • Organizer: Formation of Stars ＆ Planets 2011
  • Place of Presentation: 石垣島（ビーチホテルサンシャイン）