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Three New Eclipsing White-dwarf - M-dwarf Binaries Discovered in a Search for Transiting Planets Around M-dwarfs
Nicholas M. Law, Adam L. Kraus, Rachel Street +24
We present three new eclipsing white-dwarf / M-dwarf binary systems discovered during a search for transiting planets around M-dwarfs. Unlike most known eclipsing systems of this t…
Qatar-2: A K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit
Marta L. Bryan, Khalid A. Alsubai, David W. Latham +23
We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P_ b = 1.34 days. The mas…
PTF1 J071912.13+485834.0: An outbursting AM CVn system discovered by a synoptic survey
David Levitan, Benjamin J. Fulton, Paul J. Groot +14
We present extensive photometric and spectroscopic observations of PTF1 J071912.13+485834.0, an outbursting AM CVn system discovered by the Palomar Transient Factory (PTF). AM CVn…
Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b
Benjamin J. Fulton, Avi Shporer, Joshua N. Winn +3
We present 10 new transit light curves of the transiting hot Jupiter HAT-P-13b, obtained during two observational seasons by three different telescopes. When combined with 12 previ…
A Search for Pulsations in Helium White Dwarfs
Justin D. R. Steinfadt, Lars Bildsten, David L. Kaplan +5
The recent plethora of sky surveys, especially the Sloan Digital Sky Survey, have discovered many low-mass (M < 0.45 Msun) white dwarfs that should have cores made of nearly pure h…