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SDSS J160043.6+074802.9: a very rapid sdO pulsator
P. A. Woudt, D. Kilkenny, E. Zietsman +12
We report the serendipitous discovery of the Sloan Digital Sky Survey star, SDSS J160043.6+074802.9 to be a very rapid pulsator. The variation is dominated by a frequency near 8380…
Optical, Infrared, and Ultraviolet Observations of the X-Ray Flash GRB 050416A
S. T. Holland, P. T. Boyd, J. Gorosabel +25
We present ultraviolet, optical, and infrared photometry of the afterglow of the X-ray flash XRF 050416A taken between approximately 100 seconds and 36 days after the burst. We fin…
Spot patterns and differential rotation in the eclipsing pre-CV binary,V471 Tau
G. A. J. Hussain, C. Allende Prieto, S. H. Saar +1
We present surface spot maps of the K2V primary star in the pre-cataclysmic variable binary system, V471 Tau. The spot maps show the presence of large high latitude spots located a…
Swift-UVOT Observations of the X-Ray Flash 050406
P. Schady, K. O. Mason, J. P. Osborne +14
We present Swift-UVOT data on the optical afterglow of the X-ray flash of 2005 April 6 (XRF 050406) from 88s to \sim 10^5s after the initial prompt gamma-ray emission. Our observat…