461 citations · 977 across the 6 of their papers we have counts for
5 papers · 1 filter
The Spin-Orbit Alignment of the HD17156 Transiting Eccentric Planetary System
William D. Cochran, Seth Redfield, Michael Endl +1
We present high precision radial velocity observations of HD17156 during a transit of its eccentric Jovian planet. In these data, we detect the Rossiter-McLaughlin effect, which is…
The Structure of the Local Interstellar Medium V: Electron Densities
Seth Redfield, Ross E. Falcon
We present a comprehensive survey of CII* absorption detections toward stars within 100 pc in order to measure the distribution of electron densities present in the local interstel…
Sodium Absorption From the Exoplanetary Atmosphere of HD189733b Detected in the Optical Transmission Spectrum
Seth Redfield, Michael Endl, William D. Cochran +1
We present the first ground-based detection of sodium absorption in the transmission spectrum of an extrasolar planet. Absorption due to the atmosphere of the extrasolar planet HD1…
The Origin of Radio Scintillation In the Local Interstellar Medium
Jeffrey L. Linsky, Barney J. Rickett, Seth Redfield
We study three quasar radio sources (B1257-326, B1519-273, and J1819+385) that show large amplitude intraday and annual scintillation variability produced by the Earth's motion rel…
A Low-Mass H2 Component to the AU Microscopii Circumstellar Disk
Kevin France, Aki Roberge, Roxana E. Lupu +2
We present a determination of the molecular gas mass in the AU Microscopii circumstellar disk. Direct detection of a gas component to the AU Mic disk has proven elusive, with upper…