[P-PS04] Mars and Mars system: results from a broad spectrum of Mars studies and aspects for future missions

Sun. May 26, 2019 9:00 AM - 10:30 AM A02 (TOKYO BAY MAKUHARI HALL)

convener:Hideaki Miyamoto(University of Tokyo), Tomohiro Usui(Earth-Life Science Institute, Tokyo Institute of Technology), Ayako Matsuoka(Research Division for Space Plasma, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Sushil K Atreya(University of Michigan Ann Arbor), Chairperson:Sushil Atreya

In view of unprecedented advances in our understanding of Mars, primarily due to new and ongoing observations of the planet with a number of spacecraft missions of the US, Europe and Asia, we propose a session on Mars. Mars is an object of intense scrutiny. Currently, eight spacecraft are operating at Mars, with six in orbit (Odyssey, MRO, MAVEN, Mars Express, Mangalyaan and TGO) and two on the surface (MSL-Curiosity and MER-Opportunity), the largest number ever at any given time. In addition, InSight is on track to land on Mars in November 2018, and several spacecraft are in various stages of implementation with launches scheduled for 2020 (Mars 2020, ExoMars 2020, Emirates Mars Mission Hope, Chinese Mars Mission and the Japanese Mars Terahertz Microsatellite), 2022 (ISRO's Mangalyaan 2), and 2024 (JAXA's MMX mission to explore Phobos, Deimos, and Mars). All this is a clear demonstration of public's strong fascination with and commitment to Mars exploration and the resulting scientific bonanza. Synergistic investigations with ongoing and already completed missions along with modeling studies and earth-based observations are gradually revealing the nature of Earth's most closely resembling planet that took on a different evolutionary track than our home planet. Morphology and variable phenomena seen on the surface (RSLs, e.g.) and in the atmosphere (methane) indicate that Mars is possibly currently active. Available data are providing a better understanding of Mars' present geologic and atmospheric state, climate evolution, and habitability. Thus, the scope of this session will be the recent results from a broad spectrum of Mars studies encompassing the interior, surface, atmosphere, plasma environment, and the Mars system including its two satellites. Abstracts on modelling, instrumentation and future mission plans are also encouraged.

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9:00 AM - 9:15 AM

[PPS04-01] Recent results from the MAVEN mission

*Dave A Brain^1,4, Bruce Jakosky¹, Janet Luhmann², Gina DiBraccio³ (1.University of Colorado, 2.University of California Berkeley, 3.NASA Goddard Space Flight Center, 4.University of Tokyo)

9:15 AM - 9:30 AM

[PPS04-02] From Clouds to Aurora to Atmospheric Escape: Highlights from MAVEN’s Imaging UltraViolet Spectrograph

★Invited Papers

*Nicholas McCord Schneider¹, MAVEN/IUVS Science Team (1.LASP, University of Colorado Boulder)

9:30 AM - 9:45 AM

[PPS04-03] Variation in Martian Crustal Magnetic Field Cusp Topology

*Tristan David Weber¹, David Brain¹, Shaosui Xu², David Mitchell², Jasper Halekas³ (1.University of Colorado, Boulder, 2.Space Sciences Laboratory, UC Berkeley, 3.University of Iowa, Iowa City)

9:45 AM - 10:00 AM

[PPS04-04] The Induced Global Looping Magnetic Field on Mars

*Lihui Chai¹, Weixing Wan¹, Yong Wei¹, Tielong Zhang², Willi Exner³, Markus Fraenz⁴, Eduard Dubinin⁴, Moritz Feyerabend³, Uwe Motschmann³, Yingjuan Ma⁵, J. S. Halekas⁶ (1.Institute of Geology and Geophysics Chinese Academy of Sciences, 2.Space Research Institute, Austrian Academy of Sciences, Graz, Austria, 3.Institute for Theoretical Physics, TU Braunschweig, Braunschweig, Germany, 4.Max Planck Institute for Solar System Research, Goettingen, Germany, 5.Institute of Geophysics and Planetary Physics, University of California, Los Angeles, Los Angeles, CA, USA, 6.Department of Physics and Astronomy, University of Iowa, Iowa City, IA, USA)

10:00 AM - 10:15 AM

[PPS04-05] First Observation of Magnetic Pulsations on Martian Surface

*Peter J Chi¹, Christopher T Russell¹, Steve Joy¹, Don Banfield², Catherine L Johnson^3,4, Yingjuan Ma¹, Anna Mittelholz³, Yanan Yu¹ (1.University of California Los Angeles, 2.Cornell University, 3.University of British Columbia, 4.Planetary Science Institute)

10:15 AM - 10:30 AM

[PPS04-06] Retrieval of vertical aerosol and gas profiles considering multiple scattering from Martian limb observations by MRO/CRISM

*Yasumasa Kasaba¹, Masashi Toyooka², Shohei Aoki³, Arnaud Mahieux^3,4, Hiromu Nakagawa², Hironobu Iwabuchi² (1.Planetary Plasma and Atmospheric Research Center (PPARC), Tohoku University, 2.Dep. Geophysics, Tohoku University, 3.Planetary Aeronomy, Belgian Institute for Space Aeronomy, Belgium , 4.University of Texas at Austin, USA )

Session information