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Five New Outbursting AM CVn Systems Discovered by the Palomar Transient Factory
David Levitan, Thomas Kupfer, Paul J. Groot +10
We present five new outbursting AM CVn systems and one candidate discovered as part of an ongoing search for such systems using the Palomar Transient Factory (PTF). This is the fir…
A search for the hidden population of AM CVn binaries in the Sloan Digital Sky Survey
P. J. Carter, T. R. Marsh, D. Steeghs +7
We present the latest results from a spectroscopic survey designed to uncover the hidden population of AM Canum Venaticorum (AM CVn) binaries in the photometric database of the Slo…
Two Distant Halo Velocity Groups Discovered by the Palomar Transient Factory
B. Sesar, J. G. Cohen, D. Levitan +8
We report the discovery of two new halo velocity groups (Cancer groups A and B) traced by 8 distant RR Lyrae stars and observed by the Palomar Transient Factory (PTF) survey at R.A…
The Palomar Transient Factory photometric catalog 1.0
E. O. Ofek, R. Laher, J. Surace +22
We construct a photometrically calibrated catalog of non-variable sources from the Palomar Transient Factory (PTF) observations. The first version of this catalog presented here, t…
X-ray emission from supernovae in dense circumstellar matter environments: A search for collisionless shocks
E. O. Ofek, D. Fox, S. B. Cenko +21
(Abridged). The optical light curve of some SNe may be powered by the outward diffusion of the energy deposited by the explosion shock in optically thick circumstellar matter (CSM)…
The PTF Orion Project: a Possible Planet Transiting a T-Tauri Star
Julian C. van Eyken, David R. Ciardi, Kaspar von Braun +35
We report observations of a possible young transiting planet orbiting a previously known weak-lined T-Tauri star in the 7-10 Myr old Orion-OB1a/25-Ori region. The candidate was fou…