[P-CG24] New Developments of Planetary Sciences with ALMA

Wed. May 29, 2019 10:45 AM - 12:15 PM 105 (1F)

convener:Takayuki Muto(Division of Liberal Arts, Kogakuin University), Munetake Momose(The College of Science, Ibaraki University), Hideo Sagawa(Faculty of Science, Kyoto Sangyo University), Masumi Shimojo(National Astronomical Observatory of Japan), Chairperson:Munetake MOMOSE(Ibaraki University)

The Atacama Large Millimeter/Submillimeter Array (ALMA) starated its science operation in 2011, and long-baseline observations have become available since 2014. With its high sensitivity and resolution, ALMA has provided us with qualitatively new information on star and planet formation and small bodies in our Solar System. For example, in the observations of protoplanetary disks, ring-like structures have been commonly found and the structures with the scale of several-AU are discovered in several systems. In our solar system, 60km pixel-scale non-uniform brightness distribution and the rotation of the asteroid Juno are detected. Spatially-resolved thermal mapping of Europa icy surface enables us to search for thermal anomaly in possible plume source regions. As of Cycle 4, Solar observations are available, enabling us, for example, to determine the physical parameters of plasmoid quantitatively. In this session, we overview the latest results of ALMA observations in the field of planetary sciences. We also accept any theoretical and experimental works that are closely related to the observations and discuss the impact on the planetary science community.

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10:45 AM - 11:00 AM

[PCG24-06] Probing dust aggregate structure in protoplanetary disks by millimeter-wave polarization

*Ryo Tazaki¹, Hidekazu Tanaka¹, Takayuki Muto², Akimasa Kataoka³, Satoshi Okuzumi⁴ (1.Tohoku University, 2.Kogakuin University, 3.NAOJ, 4.Tokyo Institute of Technology)

11:00 AM - 11:15 AM

[PCG24-07] A CONSTRAINT ON THE AMOUNT OF HYDROGEN FROM THE CO CHEMISTRY IN DEBRIS DISKS

*Hiroshi Kobayashi¹, Kazunari Iwasaki^2,4, Aya Higuchi³ (1.Department of Physics, Nagoya University, 2.NAOJ, 3.RIKEN, 4.Osaka University)

11:15 AM - 11:30 AM

[PCG24-08] Structure of the protoplanetary disk around V1094 Sco obtained from dust continuum emission and SED

*Sanemichi Takahashi^1,2, Takayuki Muto¹, Takashi Tsukagoshi², Jun Hashimoto² (1.Kogakuin University, 2.NAOJ)

11:30 AM - 11:45 AM

[PCG24-09] The Synthetic ALMA Multiband Analysis of the Dust Properties of the TW Hya Protoplanetary Disk

*Seongjoong Kim¹, Hideko Nomura¹, Takashi Tsukagoshi², Ryohei Kawabe^2,3,4, Takayuki Muto⁵ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2.National Astronomical Observatory of Japan, 3.The Graduate University for Advanced Studies (SOKENDAI), 4.Department of Astronomy, School of Science, University of Tokyo, 5.Division of Liberal Arts, Kogakuin University)

11:45 AM - 12:00 PM

[PCG24-10] Dust evolution in the protoplanetary disk around TW Hya

*Takayuki Matsuura¹, Satoshi Okuzumi¹ (1.Tokyo Institute of Technology)

12:00 PM - 12:15 PM

[PCG24-11] Discovery of a localized excess in the millimeter emission of the protoplanetary disk around TW Hya

*Takashi Tsukagoshi¹, Takayuki Muto², Hideko Nomura³, Ryohei Kawabe^1,4,5, Kazuhiro Kanagawa⁹, Satoshi Okuzumi³, Shigeru Ida¹⁰, Catherine Walsh⁶, Tom J Millar⁷, Sanemichi Takahashi^2,1, Jun Hashimoto⁸, Taichi Uyama⁵, Motohide Tamura^5,8 (1.Division of Radio Astronomy, National Astronomical Observatory of Japan, 2.Division of Liberal Arts, Kogakuin University, 3.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 4.The Graduate University for Adnvanced Studies, 5.School of Science, University of Tokyo, 6.School of Physics and Astronomy, University of Leeds, 7.Astrophysics Research Centre, Queen's University Belfast, 8.Astrobiology Center, National Institutes of Natural Sciences, 9.Research Center for the Early Universe, University of Tokyo, 10.Earth-Life Science Institute, Tokyo Institute of Technology)

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