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Atmospheric Retrieval for Direct Imaging Spectroscopy of Gas Giants In Reflected Light II: Orbital Phase and Planetary Radius
Michael Nayak, Roxana Lupu, Mark Marley +3
Future space-based telescopes, such as the Wide-Field Infrared Survey Telescope (WFIRST), will observe the reflected-light spectra of directly imaged extrasolar planets. Interpreta…
ACCESS I: An Optical Transmission Spectrum of GJ 1214b Reveals a Heterogeneous Stellar Photosphere
Benjamin Rackham, Néstor Espinoza, Dániel Apai +8
GJ 1214b is the most studied sub-Neptune exoplanet to date. Recent measurements have shown its near-infrared transmission spectrum to be flat, pointing to a high-altitude opacity s…
Spitzer Secondary Eclipse Depths with Multiple Intrapixel Sensitivity Correction Methods: Observations of WASP-13b, WASP-15b, WASP-16b, WASP-62b, and HAT-P-22b
Brian M. Kilpatrick, Nikole K. Lewis, Tiffany Kataria +4
We measure the 4.5 m thermal emission of five transiting hot Jupiters, WASP-13b, WASP-15b, WASP-16b, WASP-62b and HAT-P-22b using channel 2 of the Infrared Array Camera (IRAC) o…
Jupiter's Phase Variations from Cassini: a testbed for future direct-imaging missions
L. C. Mayorga, J. Jackiewicz, K. Rages +4
We present phase curves of Jupiter from 0-140 degrees as measured in multiple optical bandpasses by Cassini/ISS during the Millennium flyby of Jupiter in late 2000 to early 2001. P…
High temperature condensate clouds in super-hot Jupiter atmospheres
Hannah R. Wakeford, Channon Visscher, Nikole K. Lewis +4
Deciphering the role of clouds is central to our understanding of exoplanet atmospheres, as they have a direct impact on the temperature and pressure structure, and observational p…
On the Composition of Young, Directly Imaged Giant Planets
J. I. Moses, M. S. Marley, K. Zahnle +6
The past decade has seen significant progress on the direct detection and characterization of young, self-luminous giant planets at wide orbital separations from their host stars.…