Circular Imaging Polarimetry of Star and Planet Forming Regions

• Project/Area Number: 16H07479
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: KWON Jungmi 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 (60724094)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 星・惑星形成 / 円偏光

Outline of Final Research Achievements

The near-infrared circular polarization (CP) observations in protoplanetary disks with high resolutions (<0.1") has never observed. In this research, I have prepared to perform near-infrared circular and linear imaging polarimetry of star and planet forming regions using the Subaru 8.2-m telescope. During this research, I have performed a near-infrared CP survey by using IRSF 1.4-m telescope, and five papers were published. Note that this research is directly linked to the studies not only on the origin of CP in star and planet forming regions but also the origin of homochirality of life on Earth in disk scales. The polarimeter for Subaru/IRCS, is also upgraded and the test observations were performed. In addition, new circular polarizer is prepared for an accurate calibration. This research using totally new data is very important because it is directly linked to not only astronomy but also astrobiology as a work on the astronomical origin of homochirality of life.

Research Products

• [Journal Article] First Near-infrared Imaging Polarimetry of Young Stellar Objects in the Circinus Molecular Cloud (2018)
  • Author(s): Kwon, J., Nakagawa, T., Tamura, M., Hough, J. H., Choi, M., Kandori, R., Nagata, T., Kang, M.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 234 Issue: 2 Pages: 42-42
  • DOI: 10.3847/1538-4365/aaa0cc
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A First Look at BISTRO Observations of The rho Oph-A core (2018)
  • Author(s): Jungmi Kwon, Yasuo Doi, Motohide Tamura, Masafumi Matsumura, Kate Pattle, David Berry, Sarah Sadavoy, Brenda C. Matthews, Derek Ward-Thompson, Tetsuo Hasegawa, et al. (112 additional authors not shown)
  • Journal Title: The Astrophysical Journal Volume: 印刷中
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Near-infrared Polarimetry of the Outflow Source AFGL 6366S: Detection of Circular Polarization (2018)
  • Author(s): Jungmi Kwon, Takao Nakagawa, Motohide Tamura, James H. Hough, Ryo Kandori, Minho Choi, Miju Kang, Jungyeon Cho, Yasushi Nakajima, Tetsuya Nagata
  • Journal Title: The Astronomical Journal Volume: 印刷中
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Near-infrared Circular and Linear Polarimetry of Monoceros R2 (2016)
  • Author(s): Kwon, Jungmi; Tamura, Motohide; Hough, James H.; Nagata, Tetsuya; Kusakabe, Nobuhiko
  • Journal Title: The Astronomical Journal Volume: 152 Issue: 3 Pages: 67-67
  • DOI: 10.3847/0004-6256/152/3/67
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Near-infrared Imaging Polarimetry of GGD 27: Circular Polarization and Magnetic Field Structures (2016)
  • Author(s): Kwon, Jungmi; Tamura, Motohide; Hough, James H.; Nagata, Tetsuya; Kusakabe, Nobuhiko; Saito, Hiro
  • Journal Title: The Astrophysical Journal Volume: 824 Issue: 2 Pages: 95-95
  • DOI: 10.3847/0004-637x/824/2/95
  • Peer Reviewed / Int'l Joint Research
• [Presentation] First Near-Infrared Imaging Polarimetry of Young Stellar Objects in the Circinus Molecular Cloud (2018)
  • Author(s): Jungmi Kwon
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 生命のホモキラリティーと原始星形成領域における円偏光観測 (2018)
  • Author(s): Jungmi Kwon
  • Organizer: 第６回 宇宙における生命ワークショップ
• [Presentation] A FIRST LOOK AT BISTRO OBSERVATIONS OF THE ρ OPH-A CORE (2018)
  • Author(s): Jungmi Kwon
  • Organizer: JCMT 2018 Users Meeting
  • Int'l Joint Research
• [Presentation] Near-infrared Circular Polarization Survey in Star-forming Regions : 3 (2017)
  • Author(s): Kwon, J.
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学伊都キャンパス
  • Year and Date: 2017-03-15
• [Presentation] Systematic Near-Infrared Circular and Linear Imaging Polarimetry Survey in Star Forming Regions (2017)
  • Author(s): Kwon, J.
  • Organizer: 2nd CORE-U Conference: Cosmic Polarimetry from Micro to Macro Scales
  • Place of Presentation: 広島大学
  • Year and Date: 2017-02-17
  • Int'l Joint Research
• [Presentation] 近赤外の偏光 vs. サブミリ波偏波－Oph A (2017)
  • Author(s): Jungmi Kwon
  • Organizer: 国立天文台研究集会：「星形成と銀河構造における磁場の役割」
  • Invited
• [Presentation] A FIRST LOOK AT BISTRO OBSERVATIONS OF THE ρ OPH-A CORE (2017)
  • Author(s): Jungmi Kwon
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Near-Infrared Imaging Polarimetry of GGD 27 (2016)
  • Author(s): Kwon, J., Tamura, M., Hough, J. H.
  • Organizer: 2016 AGU Fall Meeting
  • Place of Presentation: San Francisco
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Combined Submillimeter, Infrared, and Optical polarization data of Star Forming Regions (2016)
  • Author(s): Kwon, J., and BISTRO Team
  • Organizer: The 6th DTA Symposium: Roles of B-fields in Star Formation Process
  • Place of Presentation: 国立天文台
  • Year and Date: 2016-11-24
  • Invited