Alain Khayat

Alain Khayat

  • POST DOC
  • 301.614.5420
  • NASA/GSFC
  • Mail Code: 693
  • Greenbelt , MD 20771
  • Employer: UNIV OF MARYLAND COLLEGE PARK
  • Brief Bio

    Research focuses on the remote sensing of the atmosphere of Mars, by developing radiative transfer techniques from near-IR to submillimeter wavelengths. This includes ground-based (NASA IRTF, Keck, JCMT, Caltech Submillimeter Observatory) and space-based (MRO/CRISM) observations. Analyses include the study of water vapor over the northern polar cap of Mars, atmospheric HDO/H2O mapping, and the search for trace gases (CH4, SO2, OCS, SO, H2S…).
    Research highlights include conducting a 3-year campaign targeting volcanic gases on Mars using ground-based observatories (NASA IRTF, JCMT,CSO), indicating the lack of present major volcanic outgassing into the atmosphere of the planet.
     

    Positions/Employment

    6/2016 - 9/2016

    Postdoctoral Researcher

    Hawaii Institute of Geophysics and Planetology, Honolulu, HI.

    High-resolution infrared and submillimeter spectroscopy in planetary atmospheres.
    Radiative transfer in the atmosphere of Mars.

    8/2011 - 9/2016

    Science Collaborator

    NASA Goddard Space Flight Center, Greenbelt, MD.

    Defining observational strategies for Mars observing campaigns, investigating new methods to synthesize molecular band-systems, and processing high-resolution spectroscopic data.

    8/2008 - 5/2016

    Graduate Research Assistant

    NASA Infrared Telescope Facility, Honolulu, HI.

    Instrument Development.
    Using a computer aided design software (SolidWorks) in order to design and draw different parts for the next generation High-Resolution Echelle Spectrograph (iSHELL) that is mounted on NASA’s Infrared Telescope Facility.

    8/2008 - 12/2015

    Graduate Research Assistant

    Institute for Astronomy - University of Hawai'i at Manoa., Honolulu, HI.
    11/2009 - 5/2010

    Research Assistant

    NASA Astrobiology Institute/ University of Hawai'i., Honolulu, HI.

    Reducing and analyzing photometric data looking for activity in comet-asteroid transition object 107P/Wilson-Harrington.

    Education

    2015 Ph. D. in Astronomy.
    Institute for Astronomy, University of Hawai`i at Manoa, and NASA Infrared Telescope Facility.
    2010 M. Sc. in Astronomy.
    Magna Cum Laude. University of Hawai`i at Manoa.
    2006 Diplome D'ingénieur Mécanique (Equivalent M. Sc. in Mechanical Engineering).

    Professional Service

    2017-present: Served on NASA review panels.
    2016-present: Mars Science Laboratory (MSL) Science Team Collaborator.
    2016-present: Serves as one of the Environmental Science Theme Lead/Keeper of the Plan (ESTLK) members of the Environmental Science Theme Group of the Mars Science Laboratory (MSL).
    2016: NASA's Jet Propulsion Laboratory Planetary Science Summer School.

    Awards

    Observing nights awarded:
    • NASA Infrared Telescope Facility: 2 nights using CSHELL 2016A (PI)
    • James Clerk Maxwell Telescope: 18 hours using HARP 2014A (PI)
    • NASA Infrared Telescope Facility: 10 nights using CSHELL 2014A (PI)
    • Caltech Submillimeter Observatory: 14 nights using Barney 2012A (PI)
    • Caltech Submillimeter Observatory: 12 nights using Barney 2011B (PI)
    • NASA Infrared Telescope Facility: 9 nights using CSHELL 2011B (PI)
     

    Selected Publications

    Refereed

    Elder, C., J. Molaro, A. Chopra, et al. L. Blum, A. Khayat, S. Valencia, K. Mitchell, A. Delgado, L. Jozwiak, M. Landis, J. Watkins, A. Bramson, A. Davis, M. Slipski, C. Budney, C. Young, C. Chu, A. Das, J. Fulton, and H. Chilton. 2018. "OCEANUS: A high science return Uranus orbiter with a low-cost instrument suite." Acta Astronautica , (Submitted)

    Smith, M. D., F. Daerden, L. Neary, and A. Khayat. 2018. "The climatology of carbon monoxide and water vapor on Mars as observed by CRISM and modeled by the GEM-Mars general circulation model ." Icarus, 301: 117-131 [https://doi.org/10.1016/j.icarus.2017.09.027]

    Khayat, A. S., G. L. Villanueva, M. J. Mumma, and A. T. Tokunaga. 2017. "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 SO2." Icarus, 296: 1-14 [https://doi.org/10.1016/j.icarus.2017.05.014]

    Khayat, A. S. 2015. "Multi-band search for volcanic outgassing in the Tharsis and Syrtis Major regions on Mars." ProQuest Dissertations And Theses; Thesis (Ph.D.), 77-08(E) (ISBN: 9781339590189): 197 p.

    Villanueva, G. L., M. J. Mumma, R. E. Novak, et al. H. U. Kaufl, P. Hartogh, T. Encrenaz, A. Tokunaga, A. Khayat, and M. D. Smith. 2015. "Strong water isotopic anomalies in the martian atmosphere: Probing current and ancient reservoirs." Science, 348 (6231): 218-221 [10.1126/science.aaa3630]

    Khayat, A., G. Villanueva, M. Mumma, and A. Tokunaga. 2015. "A search for SO2, H2S and SO above Tharsis and Syrtis volcanic districts on Mars using ground-based high-resolution submillimeter spectroscopy." Icarus, 253: 130-141 [10.1016/j.icarus.2015.02.028]

    Villanueva, G., M. Mumma, R. Novak, et al. Y. Radeva, H. Käufl, A. Smette, A. Tokunaga, A. Khayat, T. Encrenaz, and P. Hartogh. 2013. "A sensitive search for organics (CH4, CH3OH, H2CO, C2H6, C2H2, C2H4), hydroperoxyl (HO2), nitrogen compounds (N2O, NH3, HCN) and chlorine species (HCl, CH3Cl) on Mars using ground-based high-resolution infrared spectroscopy." Icarus, 223 (1): 11-27 [10.1016/j.icarus.2012.11.013]

    James, B. M., A. K. Mainzer, T. Grav, et al. R. J. Walker, J. R. Masiero, E. K. Blauvelt, R. S. McMillan, Y. R. Fernandez, K. J. Meech, C. M. Lisse, R. M. Cutri, J. W. Dailey, D. J. Tholen, T. Riesen, L. Urban, A. S. Khayat, G. Pearman, J. V. Scotti, E. Kramer, D. Cherry, T. Gautier, S. Gomillion, J. Watkins, E. L. Wright, and W. Team. 2012. "WISE/NEOWISE OBSERVATIONS OF ACTIVE BODIES IN THE MAIN BELT." The Astrophysical Journal,, 747 (1): 49, 9 pp. [10.1088/0004-637X/747/1/49]

    Talks, Presentations and Posters

    Invited

    The deepest search for active release of volcanic gases on Mars.

     

    2015

    NASA Astrobiology Institute. Honolulu, Hawai'i.

    Ground-based search for volcanic outgassing in the Tharsis and Syrtis Major regions on Mars.

    2013

    NASA Astrobiology Institute. Honolulu, Hawai'i.

    Other

    Villanueva, G.L. and Mumma, M.J. and Novak, R.E. and K aufl, H.U. and Hartogh, P. and Encrenaz, T. and Tokunaga, A. and Khayat, A. and Smith, M.D. “The Evolution of the Water Reservoirs on Mars Revealed via D/H Isotopic Mapping ”.

    2016

    Lunar and Planetary Science Conference 46.

    Villanueva, Geronimo Luis; Mumma, Michael J.; Novak, Robert E.; Gurwell, Mark A.; Clarke, John T.; Tokunaga, Alan T.; Khayat, Alain; Hecht, Michael; Fisher, David Andrew. "Three-dimensional mapping of the water cycle and D/H on Mars with ALMA".

    2016

    American Astronomical Society, DPS meeting #48

    Khayat, A. SJ., and Villanueva, G.L. and Mumma, M.J. and Tokunaga, A. “The search for active release of volcanic gases on Mars ”.

    2015

    American Astronomical Society/Division for Planetary Sciences Meeting Abstracts 47. National Harbor, MD.

    Khayat, A. and Villanueva, G.L. and Mumma, M.J. and Tokunaga, A. “A new search for active release of volcanic gases on Mars: Sensitive upper limits for OCS ”.

    2014

    American Astronomical Society/Division for Planetary Sciences Meeting Abstracts 46. Tucson, AZ.

    Villanueva, G.L. and Mumma, M.J. and Novak, R.E. and Kaufl, H.U. and Hartogh, P. and Encrenaz, T. and Tokunaga, A. and Khayat, A. “Revealing the water cycle on Mars via D/H isotopic measurements ”.

    2014

    American Astronomical Society/Division for Planetary Sciences Meeting Abstracts 46. Tucson, AZ.

    Khayat, A. and Villanueva, G. L. and Mumma, M. J. and Riesen, T. E. and Tokunaga, A. T. “Seasonal Variations in the CO Line Profile and the Retrieved Thermal/Pressure Structures in the Atmosphere of Mars ”.

    2013

    American Astronomical Society/Division for Planetary Sciences Meeting Abstracts 45. Denver, CO.

    Khayat, A. and Villanueva, G. L. and Mumma, M. J. and Riesen, T. E. and Tokunaga, A. T. “Sensitive Ground-based Search for Sulfuretted Species on Mars ”.

    2012

    American Astronomical Society/Division for Planetary Sciences Meeting Abstracts 44. Reno, NV.

    Khayat, A. and Meech, K. and Pittichova, J. and Schorghofer, N. and Yang, B. and Sonnett, S. and Riesen, T. and Kleyna, J. and Kaluna, H. and Keane, J. “Search for Activity in Comet-Asteroid Transition Object 107P/Wilson-Harrington ”.

    2010

    American Astronomical Society/Division for Planetary Sciences Meeting Abstracts 42. Pasadena, CA.

    Brief Bio

    Research focuses on the remote sensing of the atmosphere of Mars, by developing radiative transfer techniques from near-IR to submillimeter wavelengths. This includes ground-based (NASA IRTF, Keck, JCMT, Caltech Submillimeter Observatory) and space-based (MRO/CRISM) observations. Analyses include the study of water vapor over the northern polar cap of Mars, atmospheric HDO/H2O mapping, and the search for trace gases (CH4, SO2, OCS, SO, H2S…).
    Research highlights include conducting a 3-year campaign targeting volcanic gases on Mars using ground-based observatories (NASA IRTF, JCMT,CSO), indicating the lack of present major volcanic outgassing into the atmosphere of the planet.
     

    Selected Publications

    Refereed

    Elder, C., J. Molaro, A. Chopra, et al. L. Blum, A. Khayat, S. Valencia, K. Mitchell, A. Delgado, L. Jozwiak, M. Landis, J. Watkins, A. Bramson, A. Davis, M. Slipski, C. Budney, C. Young, C. Chu, A. Das, J. Fulton, and H. Chilton. 2018. "OCEANUS: A high science return Uranus orbiter with a low-cost instrument suite." Acta Astronautica (Submitted)

    Smith, M. D., F. Daerden, L. Neary, and A. Khayat. 2018. "The climatology of carbon monoxide and water vapor on Mars as observed by CRISM and modeled by the GEM-Mars general circulation model ." Icarus 301 117-131 [https://doi.org/10.1016/j.icarus.2017.09.027]

    Khayat, A. S., G. L. Villanueva, M. J. Mumma, and A. T. Tokunaga. 2017. "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 SO2." Icarus 296 1-14 [https://doi.org/10.1016/j.icarus.2017.05.014]

    Khayat, A. S. 2015. "Multi-band search for volcanic outgassing in the Tharsis and Syrtis Major regions on Mars." ProQuest Dissertations And Theses; Thesis (Ph.D.) 77-08(E) (ISBN: 9781339590189): 197 p.

    Villanueva, G. L., M. J. Mumma, R. E. Novak, et al. H. U. Kaufl, P. Hartogh, T. Encrenaz, A. Tokunaga, A. Khayat, and M. D. Smith. 2015. "Strong water isotopic anomalies in the martian atmosphere: Probing current and ancient reservoirs." Science 348 (6231): 218-221 [10.1126/science.aaa3630]

    Khayat, A., G. Villanueva, M. Mumma, and A. Tokunaga. 2015. "A search for SO2, H2S and SO above Tharsis and Syrtis volcanic districts on Mars using ground-based high-resolution submillimeter spectroscopy." Icarus 253 130-141 [10.1016/j.icarus.2015.02.028]

    Villanueva, G., M. Mumma, R. Novak, et al. Y. Radeva, H. Käufl, A. Smette, A. Tokunaga, A. Khayat, T. Encrenaz, and P. Hartogh. 2013. "A sensitive search for organics (CH4, CH3OH, H2CO, C2H6, C2H2, C2H4), hydroperoxyl (HO2), nitrogen compounds (N2O, NH3, HCN) and chlorine species (HCl, CH3Cl) on Mars using ground-based high-resolution infrared spectroscopy." Icarus 223 (1): 11-27 [10.1016/j.icarus.2012.11.013]

    James, B. M., A. K. Mainzer, T. Grav, et al. R. J. Walker, J. R. Masiero, E. K. Blauvelt, R. S. McMillan, Y. R. Fernandez, K. J. Meech, C. M. Lisse, R. M. Cutri, J. W. Dailey, D. J. Tholen, T. Riesen, L. Urban, A. S. Khayat, G. Pearman, J. V. Scotti, E. Kramer, D. Cherry, T. Gautier, S. Gomillion, J. Watkins, E. L. Wright, and W. Team. 2012. "WISE/NEOWISE OBSERVATIONS OF ACTIVE BODIES IN THE MAIN BELT." The Astrophysical Journal, 747 (1): 49, 9 pp. [10.1088/0004-637X/747/1/49]

                                                                                                                                                                                            
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