The Featureless HST/WFC3 Transmission Spectrum of the Rocky Exoplanet GJ 1132b: No Evidence For A Cloud-Free Primordial Atmosphere and Constraints on Starspot Contamination

Orbiting a M dwarf 12 pc away, the transiting exoplanet GJ 1132b is a prime target for transmission spectroscopy. With a mass of 1.7 Earth masses and radius of 1.1 Earth radii, GJ 1132b's bulk density indicates that this planet is rocky. Yet with an equilibrium temperature of 580 K, GJ 1132b ma...

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Veröffentlicht in:	arXiv.org 2021-05
Hauptverfasser:	Libby-Roberts, Jessica E, Berta-Thompson, Zachory K, Diamond-Lowe, Hannah, Gully-Santiago, Michael A, Irwin, Jonathan M, Kempton, Eliza M -R, Rackham, Benjamin V, Charbonneau, David, Jean-Michel Desert, Dittmann, Jason A, Hofmann, Ryan, Morley, Caroline V, Newton, Elisabeth R
Format:	Artikel
Sprache:	eng
Schlagworte:	Atmosphere Atmospheric models Broadband Bulk density Extrasolar planets Field cameras High altitude Hubble Space Telescope Physics - Earth and Planetary Astrophysics Planetary atmospheres Planetary evolution Planetary mass Red dwarf stars Space telescopes Spectrum analysis Starspots Terrestrial planets Transit Transits
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