Ravi Kumar Kopparapu

Research Scientist (NASA Goddard)
8800 Greenbelt Road
NASA Goddard Space Flight Center
Greenbelt, MD 20771
Phone: 225.678.0058

  1. Demarcating circulation regimes of synchronously rotating terrestrial planets within the habitable zone (2018)
    Haqq-Misra, J., Wolf, E. T., Joshi, M., Zhang, X., Kopparapu, R. K.,     ADS arxiv
  2. Why do we find ourselves around a yellow star instead of a red star? (2018)
    Haqq-Misra, J.,Kopparapu, R. K., Wolf, E. T.      ADS arxiv
  3. Exploring Other Worlds: Science Questions for Future Direct Imaging Missions (EXOPAG SAG15 Report) (2017)
    Apai, D., Cowan, N., Kopparapu, R. K., et al. arxiv
  4. Habitable Moist Atmospheres on Terrestrial Planets near the Inner Edge of the Habitable Zone around M Dwarfs (2017)
    Kopparapu, R. K.., Wolf, E. T., Arney, G., Batalha, N. E., Haqq-Misra, J., Grimm, S. L., Heng, K.      Astrophysical Journal arxiv
  5. Constraints on Climate and Habitability for Earth-like Exoplanets Determined from a General Circulation Model (2017)
         Wolf, E. T., Shields, A. L., Kopparapu, R. K.., Haqq-Misra, J., Toon, O. B.      Astrophysical Journal arxiv
  6. A Catalog of Kepler Habitable Zone Exoplanet Candidates (2016)
         Kane, S., Hill, M. L., Kasting, J. F., Kopparapu, R. K.., Quintana, E., Barclay, T., Batalha, N. M., et al.      Astrophysical Journal arxiv
  7. Climate cycling on early Mars caused by the carbonate-silicate cycle (2016)
         Batalha, N. E., Kopparapu, R. K.., Haqq-Misra, J., Kasting, J.      Earth and Planetary Science Letters arxiv
  8. Limit cycles can reduce the width of the habitable zone (2016)
         Haqq-Misra, J., Kopparapu, R. K.., Batalha, N. E., Harman, C. E., Kasting, J.      Astrophysical Journal arxiv
  9. The Inner Edge of the Habitable Zone for Synchronously Rotating Planets around Low-mass Stars Using General Circulation Models (2016)
         Kopparapu, R. K.., Wolf, E. T., Haqq-Misra, J., Yang, J., Kasting, J., Meadows, V. S., Terrien, R., Mahadevan, S.      Astrophysical Journal arxiv
  10. Stratospheric Temperatures and Water Loss from Moist Greenhouse Atmospheres of Earth-like Planets (2015)
         Kasting, James., Chen, Howard., Kopparapu, R. K.      Astrophysical Journal Letters arxiv
  11. Geothermal heating enhances atmospheric asymmetries on synchronously rotating planets (2015)
         Jacob, Haqq-Misra, Kopparapu R. K.     Monthly Notices of Royal Astronomical Society (MNRAS), arxiv
  12. On the Frequency of Potential Venus Analogs from Kepler Data (2014)
         Kane, Stephen., Kopparapu R. K. ., Domagal-Goldman, Shawn     Astrophysical Journal Letters arxiv
  13. Can Increased Atmospheric CO2 Levels Trigger a Runaway Greenhouse? (2014)
         Ramirez, R; Kopparapu, R.; Linder, V., Kasting, James     Astrobiology
  14. Stellar Stoichometry (2014)
         Young, P, A., Desch, S. J., Barnes, R., Hinkel, N. R., Kopparapu R. K., Madhusudhan, N, et al.     Astrobiology
  15. Warming Early Mars with CO2 and H2 (2014)
         Ramirez, R; Kopparapu, R. K., Herman, Chester; Zugger, Mike; Kasting, James    Nature Geoscience (2014)
  16. Habitable Zones Around Main-Sequence Stars: Dependence on Planetary Mass (2014)
        Kopparapu, R. K., Ramirez, R; Kasting, James; Eymet, V; et al.    Astrophysical Journal Letters    arxiv
  17. Remote Life Detection Criteria, Habitable Zone Boundaries, and the Frequency of Earth-like Planets around M and Late-K Stars (2014)
         Kasting, James; Kopparapu, R. K. ; Ramirez, R; Harman, C.     PNAS (Proceedings of the National Academy of Sciences) Paper   Supplementary Information
  18. A Revised Estimate of the Occurrence Rate of Terrestrial Planets in the Habitable Zones Around Kepler M-Dwarfs (2013)
        Kopparapu, R. K. Astrophysical Journal Letters    arXiv
  19. Habitable Zones Around Main-Sequence Stars: New Estimates (2013)
        Kopparapu, R. K., Ramirez, R; Kasting, James; Eymet, V; et al.    Astrophysical Journal     arXiv
  20. Secular Behavior of Exoplanets: Self-Consistency and Comparisons with the Planet-Planet Scattering Hypothesis (2013)
         Miles, T; Barnes, R; Kopparapu, R; Greenberg, R; Raymond, S; Gorelick, N    Astronomical Journal (2013)
  21. A photochemical model for the carbon rich planet Wasp-12b (2012)
        Kopparapu, R. K.; Kasting, James & Zahnle, Kevin    Astrophysical Journal    ADS   arXiv:1110.2793
  22. On the likelihood of non-terrestrial artifacts in the Solar System (2012)
         Haqq-Misra, J. \& Kopparapu, R. K.    Acta Astronautica,     arXiv
  23. Population Synthesis of Hot Sub-dwarfs (2012)
         Clausen, D; Wade, R; Kopparapu, R. K.; O'Shaughnessy, R    Astrophysical Journal    arxiv
  24. Impact of star formation inhomogeneities on merger rates and interpretation of LIGO results (2012)
         O'Shaughnessy R, Kopparapu, R. K., Belczynski, K    Classical Quantum Gravity, arxiv
  25. Stability analysis of single planet systems and their habitable zones (2010)
        Kopparapu, R. K. & Barnes, Rory    Astrophysical Journal   ADS    arXiv
  26. Stability of Additional Planets in and Around the Habitable Zone of the HD 47186 Planetary System (2009)
        Kopparapu, R. K, Raymond, S. & Barnes, Rory    Astrophysical Journal Letters   ADS  arXiv
  27. Population Boundaries for Compact White Dwarf Binaries in LISA's Amplitude-Frequency Domain (2009)
        Kopparapu, R. K.    Astrophysical Journal   ADS  arXiv
  28. Host Galaxies Catalog Used in LIGO Searches for Compact Binary Coalescence Events (2008)
        Kopparapu, R. K, Hanna, C. R, Kalogera Vicky, O'Shaughnessy, R, Gonzalez, G, Brady, P & Fairhurst, S    Astrophysical Journal   ADS   arXiv
  29. Population Boundaries for Galactic White Dwarf Binaries in LISA's Amplitude-Frequency Domain (2007)
        Kopparapu, R. K, Tohline, J, E.    Astrophysical Journal   ADS arXiv
  30. For a complete list of LIGO-VIRGO Collaboration publications, click here

Selected Conference Proceedings

  1. Testing Binary Population Synthesis Models with Hot Subdwarfs (2009)
         Wade, R. A.; Kopparapu, R. K; O'Shaughnessy, R.     ADS
  2. Stability of Multi-planet Systems in and around Habitable Zones (2009)
         Kopparapu, R. K. & Barnes, R.     ADS
  3. Population Boundaries for DWDs in LISA's Amplitude-Frequency Domain (2006)
         Kopparapu, R. K; & Tohline, J. E.     ADS