학술논문
A deep search for the release of volcanic gases on Mars using ground-based high-resolution infrared and submillimeter spectroscopy: Sensitive upper limits for OCS and SO.sub.2
Document Type
Report
Source
Icarus. Nov 1, 2017, Vol. 296, p1, 14 p.
Subject
Language
English
ISSN
0019-1035
Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.icarus.2017.05.014 Byline: A.SJ. Khayat (a)(b), G.L. Villanueva (a), M.J. Mumma (a), A.T. Tokunaga (c) Abstract: * We searched for SO.sub.2 and OCS in the atmosphere of Mars for two successive Mars years. * No active release of such volcanic gases was found. * We placed upper limits of 1.8 ppbv and 3.1 ppbv for OCS and SO.sub.2, respectively. * Our upper limit on SO.sub.2 yields an outgassing rate of less than 156 tons/day, corresponding to a magma rate that is able to degas the SO.sub.2 of 104 kilotons/day. Author Affiliation: (a) Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA (b) Center for Research and Exploration in Space Science & Technology (CRESST II), Department of Astronomy, University of Maryland, College Park, MD 20742, USA (c) Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA Article History: Received 14 January 2017; Revised 13 April 2017; Accepted 22 May 2017