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Origins Space Telescope Mission Concept Study Report
M. Meixner, A. Cooray, D. Leisawitz +66
The Origins Space Telescope (Origins) traces our cosmic history, from the formation of the first galaxies and the rise of metals to the development of habitable worlds and present-…
Impact of Clouds and Hazes on the Simulated JWST Transmission Spectra of Habitable Zone Planets in the TRAPPIST-1 System
Thomas J. Fauchez, Martin Turbet, Geronimo L. Villanueva +9
The TRAPPIST-1 system, consisting of an ultra-cool host star having seven known Earth-size planets will be a prime target for atmospheric characterization with JWST. However, the d…
Transmission Spectroscopy of WASP-79b from 0.6 to 5.0 m
Kristin S. Sotzen, Kevin B. Stevenson, David K. Sing +18
As part of the PanCET program, we have conducted a spectroscopic study of WASP-79b, an inflated hot Jupiter orbiting an F-type star in Eridanus with a period of 3.66 days. Building…
Pre-Flashing WFC3/IR Time-Series, Spatial Scan Observations
K. B. Stevenson, W. Eck
Spatial scan observations using WFC3's IR channel exhibit time-dependent systematics (in the form of a ramp or hook) that have been attributed to the effects of persistence. The am…
Analyzing Eight Years of Transiting Exoplanet Observations Using WFC3's Spatial Scan Monitor
K. B. Stevenson, J. Fowler
HST/WFC3's spatial scan monitor automatically reduces and analyzes time-series data taken in spatial scan mode with the IR grisms. Here we describe the spatial scan monitor pipelin…
Absence of a thick atmosphere on the terrestrial exoplanet LHS 3844b
Laura Kreidberg, Daniel D. B. Koll, Caroline Morley +16
Most known terrestrial planets orbit small stars with radii less than 60% that of the Sun. Theoretical models predict that these planets are more vulnerable to atmospheric loss tha…