A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b

@article{Ehrenreich2015AGC,
  title={A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b},
  author={David Ehrenreich and Vincent Bourrier and Peter J. Wheatley and Alain Lecavelier des {\'E}tangs and Guillaume H{\'e}brard and St{\'e}phane Udry and Xavier Bonfils and Xavier Delfosse and J. – M. D{\'e}sert and David K Sing and Alfred Vidal-Madjar},
  journal={Nature},
  year={2015},
  volume={522},
  pages={459-461}
}
Exoplanets orbiting close to their parent stars may lose some fraction of their atmospheres because of the extreme irradiation. Atmospheric mass loss primarily affects low-mass exoplanets, leading to the suggestion that hot rocky planets might have begun as Neptune-like, but subsequently lost all of their atmospheres; however, no confident measurements have hitherto been available. The signature of this loss could be observed in the ultraviolet spectrum, when the planet and its escaping… CONTINUE READING
Recent Discussions
This paper has been referenced on Twitter 55 times over the past 90 days. VIEW TWEETS
1 Citations
26 References
Similar Papers

Citations

Publications citing this paper.

References

Publications referenced by this paper.
Showing 1-10 of 26 references

Ly a transit spectroscopy and the neutral hydrogen tail of the hot Neptune GJ 436 b

  • J. R. Kulow, K. France, J. Linsky, R. O. P. Loyd
  • Astrophys . J .
  • 2014

Modeling magnesium escape from HD 209458 b atmosphere

  • V. Bourrier, A. Lecavelier des Etangs, A. Vidal-Madjar
  • Astron . Astrophys .
  • 2014

3 Dmodel of hydrogen atmospheric escape from HD 209458 b and HD 189733 b : radiative blow - out and stellar wind interactions

  • V. Bourrier, A. Lecavelier des Etangs
  • Astron . Astrophys .
  • 2013

Hint of a transiting extended atmosphere on 55 Cancri b

  • D. Ehrenreich
  • Astron . Astrophys .
  • 2012

How thermal evolution and mass - loss sculpt populations of super - Earths and sub - Neptunes : application to the Kepler - 11 system and beyond

  • E. D. Lopez, J. J. Fortney, N. Miller
  • Astrophys . J .
  • 2012

Temporal variations in the evaporating atmosphere of the exoplanet HD 189733 b

  • A. Lecavelier des Etangs
  • Astron . Astrophys .
  • 2012

HST / STIS Lyman - a observations of the quiet M dwarf GJ 436 . Predictions for the exospheric transit signature of the hot Neptune GJ 436 b . Astron

  • D. Ehrenreich, A. Lecavelier des Etangs, X. Delfosse
  • . Astrophys .
  • 2011

Similar Papers

Loading similar papers…