148 citations · 599 across the 19 of their papers we have counts for
9 papers · 1 filter
ACCESS: Ground-based Optical Transmission Spectroscopy of the Hot Jupiter WASP-4b
Alex Bixel, Benjamin V. Rackham, Dániel Apai +6
We present an optical transmission spectrum of the atmosphere of WASP-4b obtained through observations of four transits with Magellan/IMACS. Using a Bayesian approach to atmospheri…
The Transit Light Source Effect II: The Impact of Stellar Heterogeneity on Transmission Spectra of Planets Orbiting Broadly Sun-like Stars
Benjamin V. Rackham, Dániel Apai, Mark S. Giampapa
Transmission spectra probe exoplanetary atmospheres, but they can also be strongly affected by heterogeneities in host star photospheres through the transit light source effect. He…
Back to "Normal" for the Disintegrating Planet Candidate KIC 12557548 b
Everett Schlawin, Teruyuki Hirano, Hajime Kawahara +5
KIC 12557548 b is first of a growing class of intriguing disintegrating planet candidates, which lose mass in the form of a metal rich vapor that condenses into dust particles. Her…
Retrieval of planetary and stellar properties in transmission spectroscopy with Aura
Arazi Pinhas, Benjamin V. Rackham, Nikku Madhusudhan +1
Transmission spectroscopy provides a powerful probe of the atmospheric properties of transiting exoplanets. To date, studies of exoplanets in transit have focused on inferring thei…
ACCESS: A featureless optical transmission spectrum for WASP-19b from Magellan/IMACS
Néstor Espinoza, Benjamin V. \ Rackham, Andrés Jordán +13
The short period (-day) transiting exoplanet WASP-19b is an exceptional target for transmission spectroscopy studies, due to its relatively large atmospheric scale-height ($\…
Helium in the eroding atmosphere of an exoplanet
J. J. Spake, D. K. Sing, T. M. Evans +20
Helium is the second-most abundant element in the Universe after hydrogen and is one of the main constituents of gas-giant planets in our Solar System. Early theoretical models pre…