Study on small-scale structures of the zodiacal emission observed with AKARI all-skay survey

• Project/Area Number: 17K05381
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: Ootsubo Takafumi 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 宇宙航空プロジェクト研究員 (50377925)
• Co-Investigator(Kenkyū-buntansha): 石原 大助 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 研究開発員 (30507835)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 惑星間塵 / 黄道放射 / 黄道光 / ケイ酸塩鉱物 / 彗星 / 小惑星 / 「あかり」 / 赤外線衛星 / ケイ酸塩 / あかり / 光学赤外線天文学

Outline of Final Research Achievements

In the interplanetary space of our Solar System, small dust grains are widely distributed. The thermal emission of interplanetary dust dominates the all-sky diffuse radiation in the mid- to far-infrared wavelength region. AKARI, the Japanese infrared astronomical satellite, detects the circumsolar ring and zodiacal dust-band structures in the far-infrared. Furthermore, in the AKARI far-infrared map, partial young dust-band candidates can be seen, which are corresponding to the possible bands suggested by the past infrared satellite observations. These small-scale structures are important to investigate the recent (< 1 Myr) evolution of the dust in the Solar System. We also analyzed mid-infrared spectroscopic data of the zodiacal emission obtained with AKARI. We detect the difference in the detailed feature shapes in the zodiacal emission spectra among various ecliptic latitudes.

Academic Significance and Societal Importance of the Research Achievements

惑星間塵の空間分布を理解することは、その供給源と供給メカニズムを明らかにすることであり、今回の研究で、彗星・小惑星から定常的に惑星間塵が供給されているという現在の太陽系のダイナミックな進化が明らかになってきた。また、この惑星間塵の空間分布は、今後深宇宙を探査機が航行する際にも、探査機の仕様や軌道を決定するためのひとつの条件を与えるものになると期待される。

Research Products

• [Journal Article] Unidentified infrared emission features in mid-infrared spectrum of comet 21P/Giacobini-Zinner (2020)
  • Author(s): Ootsubo, T., Kawakita, H., Shinnaka, Y., Watanabe, J., & Honda, M.
  • Journal Title: Icarus Volume: 338 Pages: 113450-113450
  • DOI: 10.1016/j.icarus.2019.113450
  • Peer Reviewed
• [Journal Article] Mid-infrared spectroscopy of zodiacal emission with AKARI/IRC (2019)
  • Author(s): Takahashi Aoi、Ootsubo Takafumi、Matsuhara Hideo、Sakon Itsuki、Usui Fumihiko、Chihara Hiroki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 6
  • DOI: 10.1093/pasj/psz095
  • Peer Reviewed
• [Journal Article] Luminosity function of faint sporadic meteors measured with a wide-field CMOS mosaic camera Tomo-e PM (2019)
  • Author(s): Ohsawa Ryou, Toshikazu Shigeyama (26/37) et al.
  • Journal Title: Planetary and Space Science Volume: 165 Pages: 281-292
  • DOI: 10.1016/j.pss.2018.09.006
  • Peer Reviewed / Open Access
• [Journal Article] A kilometre-sized Kuiper belt object discovered by stellar occultation using amateur telescopes (2019)
  • Author(s): Arimatsu K.、Tsumura K.、Usui F.、Shinnaka Y.、Ichikawa K.、Ootsubo T.、Kotani T.、Wada T.、Nagase K.、Watanabe J.
  • Journal Title: Nature Astronomy Volume: 3 Issue: 4 Pages: 301-306
  • DOI: 10.1038/s41550-018-0685-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] AKARI/IRC near-infrared asteroid spectroscopic survey: AcuA-spec (2018)
  • Author(s): Usui Fumihiko、Hasegawa Sunao、Ootsubo Takafumi、Onaka Takashi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 1
  • DOI: 10.1093/pasj/psy125
  • NAID: 120006604633
  • Peer Reviewed / Open Access
• [Journal Article] AKARI mid-infrared slit-less spectroscopic catalogue (2018)
  • Author(s): Yamagishi Mitsuyoshi、Yamamura Issei、Mizuki Toshiyuki、Ootsubo Takafumi、Baba Shunsuke、Usui Fumihiko、Onaka Takashi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 1
  • DOI: 10.1093/pasj/psy132
  • Peer Reviewed / Open Access
• [Journal Article] Mid-infrared Spectroscopic Observations of Comet 17P/Holmes Immediately After Its Great Outburst in 2007 October (2018)
  • Author(s): Shinnaka Yoshiharu、Ootsubo Takafumi、Kawakita Hideyo、Yamaguchi Mitsuru、Honda Mitsuhiko、Watanabe Jun-ichi
  • Journal Title: The Astronomical Journal Volume: 156 Issue: 5 Pages: 242-242
  • DOI: 10.3847/1538-3881/aadfea
  • Peer Reviewed / Open Access
• [Journal Article] SPICA mid-infrared instrument (SMI): conceptual design and feasibility studies (2018)
  • Author(s): Kaneda, H., Ishihara, D., Oyabu, S., Fukagawa, M., Kokusho, T., Suzuki, T., Furuta, T., Tsuchikawa, T., Wada, T., Isobe, N., Kawada, M., Kwon, J., Matsuhara, H., Nagase, K., Nakagawa, T., Ootsubo, T., Yamagishi, M., Sakon, I., Tsumura, K., & Shibai, H.,
  • Journal Title: Proceedings of the SPIE Volume: 10698 Pages: 11-11
  • DOI: 10.1117/12.2313093
  • Int'l Joint Research
• [Journal Article] A likely detection of a local interplanetary dust cloud passing near the Earth in the AKARI mid-infrared all-sky map (2017)
  • Author(s): Ishihara D.、Kondo T.、Kaneda H.、Suzuki T.、Nakamichi K.、Takaba S.、Kobayashi H.、Masuda S.、Ootsubo T.、Pyo J.、Onaka T.
  • Journal Title: Astronomy & Astrophysics Volume: 603 Pages: A82-A82
  • DOI: 10.1051/0004-6361/201628954
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Faint warm debris disks around nearby bright stars explored by AKARI and IRSF (2017)
  • Author(s): Ishihara, Daisuke; Takeuchi, Nami; Kobayashi, Hiroshi; Nagayama, Takahiro; Kaneda, Hidehiro; Inutsuka, Shu-ichiro; Fujiwara, Hideaki; Onaka, Takashi
  • Journal Title: Astronomy & Astrophysics Volume: 601 Pages: A72-A72
  • DOI: 10.1051/0004-6361/201526215
  • NAID: 120006380356
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Size Dependence of Dust Distribution around the Earth Orbit (2017)
  • Author(s): Ueda Takahiro、Kobayashi Hiroshi、Takeuchi Taku、Ishihara Daisuke、Kondo Toru、Kaneda Hidehiro
  • Journal Title: The Astronomical Journal Volume: 153 Issue: 5 Pages: 232-232
  • DOI: 10.3847/1538-3881/aa5ff3
  • Peer Reviewed / Open Access
• [Journal Article] SMALL-SCALE STRUCTURE OF THE ZODIACAL DUST CLOUD OBSERVED IN FAR-INFRARED WITH AKARI (2017)
  • Author(s): Takafumi Ootsubo, Yasuo Doi, Satoshi Takita, Shuji Matsuura, Mitsunobu Kawada, Takao Nakagawa, Ko Arimatsu, Masahiro Tanaka, Toru Kondo, Daisuke Ishihara, Fumihiko Usui, Makoto Hattori
  • Journal Title: Publications of The Korean Astronomical Society Volume: 32(1) Issue: 1 Pages: 63-65
  • DOI: 10.5303/pkas.2017.32.1.063
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] 未同定赤外バンド放射から推定するジャコビニ・ツィナー彗星 (21P/Giacobini- Zinner) の原始太陽系円盤中での形成領域と温度環境 (2020)
  • Author(s): 大坪貴文, 河北秀世, 新中善晴, 本田充彦, 渡部潤一
  • Organizer: 日本天文学会2020年春季年会
• [Presentation] Birth-place of comet 17P/Holmes from its mass fractions of minerals (2019)
  • Author(s): 新中善晴, 大坪貴文, 河北秀世, 山口充, 本田充彦, 渡部潤一
  • Organizer: 日本地球惑星科学連合2019年大会
  • Invited
• [Presentation] Cometary dust: A perspective from mid-infrared spectroscopy (2019)
  • Author(s): Takafumi Ootsubo
  • Organizer: The 12th meeting on Cosmic Dust
  • Int'l Joint Research / Invited
• [Presentation] ジャコビニ・ツィナー彗星(21P/Giacobini-Zinner)の中間赤外線スペクトルに見られる未同定赤外バンド (2019)
  • Author(s): 大坪貴文, 河北秀世, 新中善晴, 本田充彦, 渡部潤一
  • Organizer: 日本天文学会2019年秋季年会
• [Presentation] Mid-infrared observations and mineralogy of comet dust grains with Subaru/COMICS (2019)
  • Author(s): Takafumi Ootsubo
  • Organizer: Subaru Telescope 20th Anniversary
  • Int'l Joint Research / Invited
• [Presentation] 「あかり」中間赤外線分光観測による異なる母天体起源の惑星間塵の性質比較 (2019)
  • Author(s): 高橋葵, 松原英雄, 大坪貴文, 左近樹, 臼井文彦
  • Organizer: 日本天文学会2019年春季年会
• [Presentation] Mid-infrared observations of cometary silicate dust (2018)
  • Author(s): Takafumi Ootsubo
  • Organizer: DUSTY VISIONS 2018
  • Int'l Joint Research
• [Presentation] Comets, asteroids and interplanetary dust as seen in near- to far-infrared with AKARI (2018)
  • Author(s): Ootsubo, Takafumi; Ishihara, Daisuke; Hasegawa, Sunao; Pyo, Jeonghyun; Usui, Fumihiko; Kawakita, Hideyo; Mueller, Thomas; Ali-Lagoa, Victor; Takahashi, Aoi; Takaba, Sachi
  • Organizer: 42nd COSPAR Scientific Assembly
  • Int'l Joint Research / Invited
• [Presentation] Estimating the formation region of the cometary nuclei based on the infrared observations of cometary dust (2018)
  • Author(s): Takafumi Ootsubo, Yoshiharu Shinnaka, Hideyo Kawakita, Mitsuhiko Honda, and Jun-ichi Watanabe
  • Organizer: The 11th meeting on Cosmic Dust
  • Int'l Joint Research
• [Presentation] 天文観測と隕石分析で探る C 型小惑星の熱的進化過程 (2018)
  • Author(s): 臼井 文彦, 長谷川 直, 大坪 貴文, 中村 智樹
  • Organizer: 日本天文学会2018年秋季年会
• [Presentation] 「あかり」遠赤外線全天画像がとらえた小惑星ダストバンドの形成過程 (2018)
  • Author(s): 大坪 貴文, 臼井 文彦, 土井 靖生, 他「あかり」チーム
  • Organizer: 日本惑星科学会2018年秋季講演会
• [Presentation] 赤外線天文衛星「あかり」近赤外線分光観 測による小惑星の含水鉱物探査 (2018)
  • Author(s): 臼井 文彦, 長谷川 直, 大坪 貴文
  • Organizer: 日本惑星科学会2018年秋季講演会
• [Presentation] Infrared Observations of Zodiacal Dust: Cometary or Asteroidal Origin? (2018)
  • Author(s): Takafumi Ootsubo
  • Organizer: PERC International Symposium on Dust & Parent Bodies (IDP2018)
  • Int'l Joint Research / Invited
• [Presentation] 「あかり」中間赤外線全天サーベイデータを用いた黄道光ダストバンドの形成プロセスの研究 (2018)
  • Author(s): 高羽幸, 金田英宏, 石原大助, 深川美里, 安田晃子, 小林浩, 大坪貴文
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 「あかり」遠赤外線全天画像に見られる形成途中の小惑星ダストバンド (2017)
  • Author(s): 大坪貴文, 瀧田怜, 川田光伸, 北村良実, 中川貴雄, 土井靖生, 松浦周二, 臼井文彦, 有松亘, 石原大助
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Faint young asteroidal dust bands observed with AKARI (2017)
  • Author(s): Takafumi Ootsubo
  • Organizer: The 10th meeting on Cosmic Dust
  • Int'l Joint Research
• [Presentation] Global and small-scale structure of the zodiacal dust cloud observed with AKARI (2017)
  • Author(s): Takafumi Ootsubo
  • Organizer: The Cosmic Wheel and the Legacy of the AKARI archive
  • Int'l Joint Research / Invited