47 citations · 63 across the 4 of their papers we have counts for
6 papers
The Intermediate Polar EI UMa: A Pre-Polar Cataclysmic Variable
Tamara W. Reimer, William F. Welsh, Koji Mukai +1
We present optical and X-ray time-series photometry of EI UMa that reveal modulation at 746 and 770 s, which we interpret as the white dwarf spin and spin-orbit sidebands. These de…
Parameters and Predictions for the Long-Period Transiting Planet HD 17156b
Jonathan Irwin, David Charbonneau, Philip Nutzman +8
We report high-cadence time-series photometry of the recently-discovered transiting exoplanet system HD 17156, spanning the time of transit on UT 2007 October 1, from three separat…
Measuring H-beta BLR Flows in NGC 5548
William F. Welsh, Danielle L. Martino, Go Kawaguchi +1
Using archival International AGN Watch observations we find a correlation between the asymmetry of the H-beta line and the system luminosity: the line becomes bluer as the system g…
On Using the Rossiter Effect to Detect Terrestrial Planets
W. F. Welsh, J. A. Orosz
We explore the possibility that the transit signature of an Earth-size planet can be detected in spectroscopic velocity shifts via the Rossiter effect. Under optimistic but not unr…
The Nonradially-Pulsating Primary of the Cataclysmic Variable GW Librae
L. van Zyl, B. Warner, D. O'Donoghue +11
The dwarf nova GW Librae is the first cataclysmic variable discovered to have a primary in a white dwarf instability strip, making it the first multi-mode, nonradially-pulsating st…
Hubble Space Telescope Observations of UV Oscillations in WZ Sagittae During the Decline from Outburst
W. F. Welsh, E. M. Sion, P. Godon +4
We present a time series analysis of Hubble Space Telescope observations of WZ Sge obtained in 2001 September, October, November and December as WZ Sge declined from its 2001 July…