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

Wed. May 29, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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)

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.

[PCG24-P01] Nitrogen isotopic fractionation on Titan atmosphere: An analysis of ALMA archive data

*Hideo Sagawa¹, Takahiro Iino², Takashi Tsukagoshi³ (1.Kyoto Sangyo University, 2.Tokyo University of Agriculture and Technology, 3.National Astronomical Observatory of Japan)

[PCG24-P02] Investigating the gas-to-dust ratio in the protoplanetary disk of HD 142527

*Soon Kang-Lou¹, Munetake Momose¹, Takayuki Muto², Takashi Tsukagoshi³, Akimasa Kataoka³, Tomoyuki Hanawa⁴, Misato Fukagawa³, Kazuya Saigo³, Hiroshi Shibai⁵ (1.Ibaraki University, 2.Kogakuin University, 3.National Astronomical Observatory of Japan, 4.Chiba University, 5.Osaka University)

[PCG24-P03] Super-resolution Imaging of the Protoplanetary Disk HD 142527 Using Sparse Modeling

*Masayuki Yamaguchi^1,2, Kazunori Akiyama^3,2, Akimasa Kataoka^2,6, Takashi Tsukagoshi², Takayuki Muto⁴, Shiro Ikeda⁵, Misato Fukagawa², Mareki Honma^2,6, Ryohei Kawabe^2,1,6 (1.The University of Tokyo, 2.National Astronomical Observatory of Japan, 3.Massachusetts Institute of Technology, Haystack Observatory, 4.Kogakuin University, 5.The Institute of Statistical Mathematics, 6. Graduate University for Advanced Studies)

[PCG24-P04] Detail Structures of Dust Disk around T-Tauri star RY Tau in ALMA High-Spatial Resolution Imaging

*Mihoko Konishi^1,2, Jun Hashimoto^1,2, Hauyu Liu³, Ruobing Dong⁴, Takayuki Muto⁵ (1.Astrobiology Center, National Institute of Natural Science, 2.National Astronomical Observatory of Japan, 3.Institute of Astronomy and Astrophysics, Academia Sinica, 4.University of Victoria, 5.Kogakuin University)

[PCG24-P05] Possible inclined inner protoplanetary disk

*Jun Hashimoto¹, Mihoko Konishi¹, Taichi Uyama², Christian Ginski³, Matthias Samland⁴ (1.AstroBiology Center, National Institutes of Natural Sciences, 2.University of Tokyo, 3.University of Amsterdam, 4.Max Planck Institute for Astronomy)

[PCG24-P06] Search for the Inner Disk Structures in "Transitional" Disks

*Takayuki Muto¹, Jun Hashimoto², Takashi Tsukagoshi³, Mihoko Konishi³, Tomoyuki Kudo³ (1.Division of Liberal Arts, Kogakuin University, 2.Astrobiology Center, 3.NAOJ)

Session information