Sushil K. Atreya先生



For outstanding contributions to planetary atmospheres research and planetary missions to understand the origin and evolution of planets in our solar system and in extrasolar systems.


· ミシガン大学、気候・宇宙科学科、教授
· 2006年から: ジェット推進研究所(JPL)Distinguished Visiting Scientist


1. The Origin and Evolution of Saturn, with Exoplanet Perspective, S. K. Atreya, A. Crida, T. Guillot, J. I. Lunine, N. Madhusudhan, O. Mousis, in Saturn in the 21st Century (K. H. Baines et al., M. Flasar, N. Krupp, T. Stallard, eds.), Cambridge University Press, in press, 2017. Accepted article preprint from attached.
2. Mars Methane Detection and Variability at Gale Crater, with C. R. Webster, P. R. Mahaffy, et al., Science 347, 412-414, 2015. DOI: 10.1126/science.1260291.
3. Primordial Argon Isotope Fractionation In the Atmosphere of Mars Measured By The SAM Instrument On Curiosity, And Implications for Atmospheric Loss, S. K. Atreya, et al., Geophys. Res. Lett., 40(21):5605-5609, doi:10.1002/2013GL057763, 2013.
4. The Global Cycle of Methane on Titan, J. I. Lunine and S. K. Atreya, Nature Geoscience, 1, 159, 2008.
5. Methane and Related Trace Species on Mars: Origin, Loss, Implications for Life, and Habitability, S. K. Atreya, P. R. Mahaffy and A. S. Wong, Planet. Space Sci., 55, 358-369, 2007.


Prof. Sushil Atreya has been studying the origin and evolution of the atmospheres of planets and satellites, climate systems, as well as habitability in our solar system and in extrasolar systems. Recently, he played a major role in defining and fine-tuning key science drivers of the SAM (Sample Analysis at Mars) instrument suite on board the Curiosity rover that landed in Gale Crater of Mars in 2012. SAM confirmed unambiguously the existence of methane and recorded its local, short-time scale variations as well as seasonal change that could not be explained either by clathrate release, surface adsorption with subsequent release or seasonal change in known atmospheric parameters, thus changing our view of the red planet to a more complex and dynamic body that is currently active.


佐藤 毅彦