Andreas Seifahrt
University of Chicago
210 Papers
2K Citations
Andreas Seifahrt is an academic researcher from University of Chicago. The author has contributed to research in topics: Planet & Stars. The author has an hindex of 40, co-authored 183 publications. Previous affiliations of Andreas Seifahrt include University of Jena & University of Hawaii.
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Papers
Clouds in the atmosphere of the super-Earth exoplanet GJ 1214b
Laura Kreidberg,Jacob L. Bean,Jean-Michel Desert,Björn Benneke,Drake Deming,Kevin B. Stevenson,Sara Seager,Zachory K. Berta-Thompson,Andreas Seifahrt,Derek Homeier +9 more
TL;DR: A measurement of the transmission spectrum of GJ 1214b at near-infrared wavelengths is reported, sufficiently precise to detect absorption features from a high mean-molecular-mass atmosphere and rule out cloud-free atmospheric models with compositions dominated by water, methane, carbon monoxide, nitrogen or carbon dioxide.
Detecting Planets Around Very Low Mass Stars with the Radial Velocity Method
TL;DR: In this article, the authors investigate the precision of radial velocity measurements of low-mass stars in the near-infrared (NIR) Y-, J-, and H-bands, and compare it to the precision achievable in the optical assuming comparable telescope and instrument efficiencies.
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The Optical and Near-Infrared Transmission Spectrum of the Super-Earth GJ1214b: Further Evidence for a Metal-Rich Atmosphere
Jacob L. Bean,Jean-Michel Desert,Petr Kabath,B. Stalder,Sara Seager,Eliza M.-R. Kempton,Zachory K. Berta,Derek Homeier,Shane Walsh,Andreas Seifahrt +9 more
TL;DR: In this paper, the authors present an investigation of the transmission spectrum of the 6.5 M_earth planet GJ1214b based on new ground-based observations of transits of the planet in the optical and near-infrared, and on previously published data.
Transmission Spectroscopy of the Hot-Jupiter WASP-12b from 0.7 to 5 microns
Kevin B. Stevenson,Jacob L. Bean,Andreas Seifahrt,Jean-Michel Desert,Nikku Madhusudhan,M. Bergmann,Laura Kreidberg,Derek Homeier +7 more
TL;DR: In this paper, a ground-based multi-object transmission-spectroscopy observations of WASP-12b were obtained over two consecutive nights in the red optical with Gemini-N/GMOS.
Detecting Planets Around Very Low Mass Stars with the Radial Velocity Method
TL;DR: In this article, the radial velocity measurements of low-mass stars in the near infrared (nIR) Y-, J-, and H-bands were investigated and compared to the precision achievable in the optical.
198