Ravi Kumar Kopparapu

Ravi Kumar Kopparapu

  • Research AST, Planetary Studies
  • 301.286.1548
  • NASA/GSFC
  • Mail Code: 699
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    My research interests are in extrasolar planet habitability, atmosphere modeling and characterization. Specifically, I have been working with various climate models to determine the conditions needed for a rocky planet to sustain liquid water on it's surface. Life, as we know it, requires liquid water; therefore, finding worlds around other stars and identifying the signatures of surface water  can potentially allow us to discover extraterrestrial life.

    My work also involves studying the composition and occurrence of planets that are not Earth-size. I have developed photochemical models to study the how the upper atmospheres of various planetary bodies (such as hot Jupiters, warm (mini) Neptunes) are affected by the host star radiation, and consequently the how the abundances of different chemical species change.


    EDUCATION
    Louisiana State University (LSU), Baton Rouge, LA
    Ph.D. in Physics, December 2006
    M.S. (Physics), LSU, May 2003
    M.Sc.(Physics), University of Pune, India, June 1998
    B.Sc. (Electronics), Nagarjuna University, India, June 1996


    PROFESSIONAL EXPERIENCE
    9/2015 – Present: Assistant Research Scientist, NASA Goddard Space Flight Center/University of Maryland
    9/2013 – 08/2015: Research Associate, Planetary Science, Pennsylvania State University (Penn State)
    9/2010 – 8/2013: Postdoctoral Scholar, NASA Astrobiology Institute’s Virtual Planetary Lab, Penn State 9/2007 – 8/2010: Posdoctoral Scholar, Center for Gravitational-Wave Astronomy, Penn State
    1/2007 – 7/2007: Postdoctoral Scholar, Center for Computation and Technology, LSU

    RESEARCH INTERESTS
    Extrasolar planets: habitability, atmospheric modeling and characterization, planetary transit analysis.

    Publications

    Refereed

    Haqq-Misra, J., E. T. Wolf, M. Joshi, X. Zhang, and R. K. Kopparapu. 2018. "Demarcating Circulation Regimes of Synchronously Rotating Terrestrial Planets within the Habitable Zone." The Astrophysical Journal, 852 (2): 67 [10.3847/1538-4357/aa9f1f]

    Kopparapu, R. K., E. Hébrard, R. Belikov, et al. N. M. Batalha, G. D. Mulders, C. Stark, D. Teal, S. Domagal-Goldman, and A. Mandell. 2018. "Exoplanet Classification and Yield Estimates for Direct Imaging Missions." The Astrophysical Journal, 856 (2): 122 [10.3847/1538-4357/aab205]

    Wolf, E. T., A. L. Shields, R. K. Kopparapu, J. Haqq-Misra, and O. B. Toon. 2017. "Constraints on Climate and Habitability for Earth-like Exoplanets Determined from a General Circulation Model." The Astrophysical Journal, 837 (2): 107 [10.3847/1538-4357/aa5ffc]

    Haqq-Misra, J., R. K. Kopparapu, and E. T. Wolf. 2017. "Why do we find ourselves around a yellow star instead of a red star?" International Journal of Astrobiology, 17 (01): 77-86 [10.1017/s1473550417000118]

    Kopparapu, R. K., E. T. Wolf, G. Arney, et al. N. E. Batalha, J. Haqq-Misra, S. L. Grimm, and K. Heng. 2017. "Habitable Moist Atmospheres on Terrestrial Planets near the Inner Edge of the Habitable Zone around M Dwarfs." The Astrophysical Journal, 845 (1): 5 [10.3847/1538-4357/aa7cf9]

    Kopparapu, R. 2016. "A CATALOG OFKEPLERHABITABLE ZONE EXOPLANET CANDIDATES." The Astrophysical Journal, 830 (1): 1 [10.3847/0004-637x/830/1/1]

    Kopparapu, R. K., R. Ramirez, J. F. Kasting, et al. V. Eymet, T. D. Robinson, S. Mahadevan, R. C. Terrien, S. Domagal-Goldman, V. Meadows, and R. Deshpande. 2013. "Erratum: Habitable Zones Around Main-sequence Stars: New Estimates’' (2013, ApJ, 765, 131)." The Astrophysical Journal, 770: 82 [doi:10.1088/0004-637X/770/1/82]

    Kopparapu, R. 2013. "A Revised Estimate of the Occurrence Rate of Terrestrial Planets in the Habitable Zones around Kepler M-dwarfs." The Astrophysical Journal, 767 (1): 5.

    Kopparapu, R. 2012. "A Photochemical Model for the Carbon-rich Planet WASP-12b." The Astrophysical Journal, 745 (1): 10.

    Brief Bio

    My research interests are in extrasolar planet habitability, atmosphere modeling and characterization. Specifically, I have been working with various climate models to determine the conditions needed for a rocky planet to sustain liquid water on it's surface. Life, as we know it, requires liquid water; therefore, finding worlds around other stars and identifying the signatures of surface water  can potentially allow us to discover extraterrestrial life.

    My work also involves studying the composition and occurrence of planets that are not Earth-size. I have developed photochemical models to study the how the upper atmospheres of various planetary bodies (such as hot Jupiters, warm (mini) Neptunes) are affected by the host star radiation, and consequently the how the abundances of different chemical species change.


    EDUCATION
    Louisiana State University (LSU), Baton Rouge, LA
    Ph.D. in Physics, December 2006
    M.S. (Physics), LSU, May 2003
    M.Sc.(Physics), University of Pune, India, June 1998
    B.Sc. (Electronics), Nagarjuna University, India, June 1996


    PROFESSIONAL EXPERIENCE
    9/2015 – Present: Assistant Research Scientist, NASA Goddard Space Flight Center/University of Maryland
    9/2013 – 08/2015: Research Associate, Planetary Science, Pennsylvania State University (Penn State)
    9/2010 – 8/2013: Postdoctoral Scholar, NASA Astrobiology Institute’s Virtual Planetary Lab, Penn State 9/2007 – 8/2010: Posdoctoral Scholar, Center for Gravitational-Wave Astronomy, Penn State
    1/2007 – 7/2007: Postdoctoral Scholar, Center for Computation and Technology, LSU

    RESEARCH INTERESTS
    Extrasolar planets: habitability, atmospheric modeling and characterization, planetary transit analysis.

    Publications

    Refereed

    Haqq-Misra, J., E. T. Wolf, M. Joshi, X. Zhang, and R. K. Kopparapu. 2018. "Demarcating Circulation Regimes of Synchronously Rotating Terrestrial Planets within the Habitable Zone." The Astrophysical Journal 852 (2): 67 [10.3847/1538-4357/aa9f1f]

    Kopparapu, R. K., E. Hébrard, R. Belikov, et al. N. M. Batalha, G. D. Mulders, C. Stark, D. Teal, S. Domagal-Goldman, and A. Mandell. 2018. "Exoplanet Classification and Yield Estimates for Direct Imaging Missions." The Astrophysical Journal 856 (2): 122 [10.3847/1538-4357/aab205]

    Wolf, E. T., A. L. Shields, R. K. Kopparapu, J. Haqq-Misra, and O. B. Toon. 2017. "Constraints on Climate and Habitability for Earth-like Exoplanets Determined from a General Circulation Model." The Astrophysical Journal 837 (2): 107 [10.3847/1538-4357/aa5ffc]

    Haqq-Misra, J., R. K. Kopparapu, and E. T. Wolf. 2017. "Why do we find ourselves around a yellow star instead of a red star?" International Journal of Astrobiology 17 (01): 77-86 [10.1017/s1473550417000118]

    Kopparapu, R. K., E. T. Wolf, G. Arney, et al. N. E. Batalha, J. Haqq-Misra, S. L. Grimm, and K. Heng. 2017. "Habitable Moist Atmospheres on Terrestrial Planets near the Inner Edge of the Habitable Zone around M Dwarfs." The Astrophysical Journal 845 (1): 5 [10.3847/1538-4357/aa7cf9]

    Kopparapu, R. 2016. "A CATALOG OFKEPLERHABITABLE ZONE EXOPLANET CANDIDATES." The Astrophysical Journal 830 (1): 1 [10.3847/0004-637x/830/1/1]

    Kopparapu, R. K., R. Ramirez, J. F. Kasting, et al. V. Eymet, T. D. Robinson, S. Mahadevan, R. C. Terrien, S. Domagal-Goldman, V. Meadows, and R. Deshpande. 2013. "Erratum: Habitable Zones Around Main-sequence Stars: New Estimates’' (2013, ApJ, 765, 131)." The Astrophysical Journal 770 82 [doi:10.1088/0004-637X/770/1/82]

    Kopparapu, R. 2013. "A Revised Estimate of the Occurrence Rate of Terrestrial Planets in the Habitable Zones around Kepler M-dwarfs." The Astrophysical Journal 767 (1): 5

    Kopparapu, R. 2012. "A Photochemical Model for the Carbon-rich Planet WASP-12b." The Astrophysical Journal 745 (1): 10

                                                                                                                                                                                            
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