MAVEN/IUVS Periapse Lyman-alpha Observations: Variability and Constraints on H and CO2 Abundance

Dr. Andrea C. G. Hughes1, Michael Chaffin2, Edwin J Mierkiewicz3, Jean-Yves Chaufray4, Justin Deighan5, Nick M Schneider5, Edward Thiemann6, John T Clarke7, Majd Mayyasi8, Sonal K Jain9, Matteo Michael James Crismani10, Arnaud Stiepen5, Franck Montmessin11, Dr. Francis Gerard Eparvier, Ph.D.6, Ian F Stewart5, Bill McClintock12, Greg Holsclaw13 and Bruce Martin Jakosky9, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)University of Colorado Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (3)Embry-Riddle Aeronautical University, Daytona Beach, FL, United States, (4)LATMOS/IPSL, UVSQ Université Paris-Saclay, Sorbonne Université, Guyancourt, France, (5)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (6)LASP, University of Colorado at Boulder, Boulder, CO, United States, (7)Boston University, Boston, MA, United States, (8)Boston University, Center for Space Physics, Boston, MA, United States, (9)Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, United States, (10)California State University, Department of Physics and Astronomy, San Bernardino, United States, (11)Laboratoire Atmosphères, Observations Spatiales, IPSL, CNRS, UVSQ, Sorbonne Université, Guyancourt, France, (12)University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (13)Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States