Lyα in the GJ 1132 System: Stellar Emission and Planetary Atmospheric Evolution

@article{Waalkes2019LyIT,
  title={Lyα in the GJ 1132 System: Stellar Emission and Planetary Atmospheric Evolution},
  author={W. Waalkes and Z. Berta-Thompson and V. Bourrier and E. Newton and D. Ehrenreich and E. Kempton and D. Charbonneau and J. Irwin and J. Dittmann},
  journal={The Astronomical Journal},
  year={2019},
  volume={158},
  pages={50}
}
  • W. Waalkes, Z. Berta-Thompson, +6 authors J. Dittmann
  • Published 2019
  • Physics
  • The Astronomical Journal
  • GJ 1132b, which orbits an M dwarf, is one of the few known Earth-sized planets, and at 12 pc away it is one of the closest known transiting planets. Receiving roughly 19x Earth’s insolation, this planet is too hot to be habitable but can inform us about the volatile content of rocky planet atmospheres around cool stars. Using Hubble STIS spectra, we search for a transit in the Lyman-α line of neutral hydrogen (Lyα). If we were to observe a deep Lyα absorption signature, that would indicate the… CONTINUE READING
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