• DOI:10.3847/1538-3881/aa7133
Corpus ID: 56437290

A Search for Water in a Super-Earth Atmosphere: High-resolution Optical Spectroscopy of 55Cancri e

@article{Esteves2017ASF,
  title={A Search for Water in a Super-Earth Atmosphere: High-resolution Optical Spectroscopy of 55Cancri e},
  author={Lisa J. Esteves and E. D. Mooij and R. Jayawardhana and C. Watson and R. Kok},
  journal={The Astronomical Journal},
  year={2017},
  volume={153},
  pages={268}
}

Lisa J. Esteves, E. D. Mooij, +2 authors R. Kok

Published 2017

Physics

The Astronomical Journal

We present the analysis of high-resolution optical spectra of four transits of 55Cnc e, a low-density, super-Earth that orbits a nearby Sun-like star in under 18 hours. The inferred bulk density of the planet implies a substantial envelope, which, according to mass-radius relationships, could be either a low-mass extended or a high-mass compact atmosphere. Our observations investigate the latter scenario, with water as the dominant species. We take advantage of the Doppler cross-correlation… CONTINUE READING

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