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Bjorn Davidsson

Photo of Bjorn Davidsson


4800 Oak Grove Drive
M/S 183-401

Pasadena, CA 91109



Curriculum Vitae:

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Member of:

Small Bodies


2003: PhD in Theoretical Astrophysics, Uppsala University, Sweden

1998: MSc in Physics, Uppsala University, Sweden

Professional Experience

2016 – present: JPL Scientist, Asteroids, Comets & Satellites group

2010 – 2016: Researcher, Uppsala University, Sweden

2008 – 2009: JPL Visiting Scientist

2005 – 2010: Research Associate, Uppsala University, Sweden

2003 – 2005: Research Fellow, ESA/ESTEC, Noordwijk, The Netherlands

Research Interests

  • Comet nuclei and other minor Solar System bodies
  • The origin and early evolution of the Solar System
  • Thermophysical modeling
  • Dynamics and celestial mechanics
  • Radiative transfer in solid particulate media
  • Gas kinetics

Selected Awards

2018: The Voyager Award (JPL, twice)

2017: JPL Team Award to MILO (Microwave Lunar Observer) Proposal Team

2011: NASA Group Achievement Award to MIRO Flight Operations Team

2009: The Edlund Prize from The Royal Swedish Academy of Sciences

2003: Naming of Asteroid (11798) Davidsson

2001: Paul Pellas – Graham Ryder Award from The Planetary Division of the Geological Society of America, and The Meteoritical Society

Selected Publications

  1. Davidsson, B. J. R., N. H. Samarasinha, D. Farnocchia, P. J. Gutiérrez (2022). Modelling the water and carbon dioxide production rates of Comet 67P/Churyumov-Gerasimenko. Mon. Not. R. Astron. Soc. 509, 3065-3085.
  2. Davidsson, B. J. R., and S. Hosseini (2021). Implications of surface roughness in models of water desorption on the Moon. Mon. Not. R. Astron. Soc. 506, 3421-3429.
  3. Davidsson, B. J. R. (2021). Thermophysical evolution of planetesimals in the primordial disc. Mon. Not. R. Astron. Soc. 505, 5654-5685.
  4. Davidsson, B. J. R., S. Birch, G. A. Blake, D. Bodewits, J. P. Dworkin, D. P. Glavin, Y. Furukawa, J. I. Lunine, J. L. Mitchell, A. N. Nguyen, S. Squyres, A. Takigawa, J.-B. Vincent, K. Zacny (2021). Airfall on Comet 67P/Churyumov-Gerasimenko. Icarus 354, 114004.
  5. Weissman, P., A. Morbidelli, B. Davidsson, J. Blum (2020). Origin and Evolution of Cometary Nuclei. Space. Sci. Rev. 216, 6.
  6. Davidsson, B. J. R., Sierks, H., Güttler, C., Marzari, F., Pajola, M., Rickman, H., A'Hearn, M. F., Auger, A.-T., El-Maarry, M. R., Fornasier, S., Gutierrez, P. J., Keller, H. U., Massironi, M., Snodgrass, C., Vincent, J.-B., and 33 colleagues (2016). The primordial nucleus of comet 67P/Churyumov-Gerasimenko. Astron. Astrophys. 592, A63.
  7. Sierks H., C., Barbieri, P. L. Lamy, R. Rodrigo, D. Koschny, H. Rickman, H. U. Keller, J. Agarwal, M. F. A'Hearn, F. Angrilli, A.-T. Auger, M. A. Barucci, J.-L. Bertaux, I. Bertini, S. Besse, D. Bodewits, C. Capanna, G. Cremonese, V. Da Deppo, B. Davidsson and 46 colleagues (2015). On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko. Science 347, aaa1044.
  8. Davidsson, B. J. R., and 46 colleagues (2015). Orbital elements of the material surrounding comet      67P/Churyumov-Gerasimenko. Astron. Astrophys. 583, A16.
  9. Davidsson, B. J. R., H. Rickman, J. L. Bandfield, O. Groussin, P. J. Gutierrez, M. Wilska, M. T. Capria, J. P. Emery, J. Helbert, L. Jorda, A. Maturilli, T. G. Mueller (2015). Interpretation of thermal emission. I. The effect of roughness for      spatially resolved atmosphereless bodies. Icarus 252, 1-21.
  10. Davidsson, B. J. R., and H. Rickman (2014). Surface roughness and three-dimensional heat conduction in thermophysical models. Icarus 243, 58-77.
  11. Davidsson, B. J. R., P. J. Gutierrez, O. Groussin, M. F. A'Hearn, T. Farnham, L. M. Feaga, M. S. Kelley, K. P. Klaasen, F. Merlin, S. Protopapa, H. Rickman, J. M. Sunshine, P. C. Thomas (2013). Thermal inertia and surface roughness of comet 9P/Tempel 1. Icarus 224, 154-171.
  12. Davidsson, B. J. R., S. Gulkis, C. Alexander, P. von Allmen, L. Kamp, S. Lee (2010). Gas kinetics and dust dynamics in low-density comet comae. Icarus 210, 455-471.
  13. Gutierrez, P.J., and B. J. R. Davidsson (2007). Non-gravitational force modeling of Comet 81P/Wild 2. II. Rotational evolution. Icarus 191, 651-664.
  14. Davidsson, B. J. R., and P. J. Gutierrez (2006). Non-gravitational force modeling of comet 81P/Wild 2. I. A nucleus bulk density estimate. Icarus 180, 224-242.
  15. Blum, J. R. Schräpler, B. J. R. Davidsson, J. M. Trigo-Rodriguez (2006). The physics of protoplanetesimal dust agglomerates. I. Mechanical properties and relations to primitive bodies in the Solar System. Astrophys. J. 652, 1768-1781.
  16. Davidsson, B. J. R., and P. J. Gutierrez (2005). Nucleus properties of comet 67P/Churymov-Gerasimenko estimated from non-gravitational force modeling. Icarus 176, 453-477.
  17. Davidsson, B. J. R., and P. J. Gutierrez (2004). Estimating the nucleus density of comet 19P/Borrelly. Icarus 168, 392-408.
  18. Davidsson, B. J. R., and Y. V. Skorov (2002). On the light-absorbing surface layer of cometary nuclei. II. Thermal modeling. Icarus 159, 239-258.
  19. Davidsson, B. J. R., and Y. V. Skorov (2002). On the light-absorbing surface layer of cometary nuclei. I. Radiative transfer. Icarus 156, 223-248.
  20. Davidsson, B. J. R. (2001). Tidal splitting and rotational breakup of solid biaxial ellipsoids. Icarus 149, 375-383.
  21. Davidsson, B. J. R. (1999). Tidal splitting and rotational breakup of solid spheres. Icarus 142, 525-535.