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Science. 2017 May 12;356(6338):628-631. doi: 10.1126/science.aah4668.

HAT-P-26b: A Neptune-mass exoplanet with a well-constrained heavy element abundance.

Science (New York, N.Y.)

Hannah R Wakeford, David K Sing, Tiffany Kataria, Drake Deming, Nikolay Nikolov, Eric D Lopez, Pascal Tremblin, David S Amundsen, Nikole K Lewis, Avi M Mandell, Jonathan J Fortney, Heather Knutson, Björn Benneke, Thomas M Evans

Affiliations

  1. NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA. [email protected].
  2. Astrophysics Group, University of Exeter, Physics Building, Stocker Road, Exeter, Devon, EX4 4QL UK.
  3. NASA Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109, USA.
  4. Department of Astronomy, University of Maryland, College Park, MD 20742, USA.
  5. NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA.
  6. Institute for Astronomy, Royal Observatory Edinburgh, University of Edinburgh, Blackford Hill, Edinburgh, UK.
  7. Maison de la Simulation, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CNRS, Université Paris-Sud, Université Versailles Saint-Quentin-en-Yvelines (UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette, France.
  8. Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10025, USA.
  9. NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025, USA.
  10. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA.
  11. Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  12. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.

PMID: 28495748 DOI: 10.1126/science.aah4668

Abstract

A correlation between giant-planet mass and atmospheric heavy elemental abundance was first noted in the past century from observations of planets in our own Solar System and has served as a cornerstone of planet-formation theory. Using data from the Hubble and Spitzer Space Telescopes from 0.5 to 5 micrometers, we conducted a detailed atmospheric study of the transiting Neptune-mass exoplanet HAT-P-26b. We detected prominent H

Copyright © 2017, American Association for the Advancement of Science.

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