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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…
New Young Star Candidates in BRC 27 and BRC 34
L. M. Rebull, C. H. Johnson, J. C. Gibbs +26
We used archival Spitzer Space Telescope mid-infrared data to search for young stellar objects (YSOs) in the immediate vicinity of two bright-rimmed clouds, BRC 27 (part of CMa R1)…
The UV/optical spectra of the Type Ia supernova SN 2010jn: a bright supernova with outer layers rich in iron-group elements
S. Hachinger, P. A. Mazzali, M. Sullivan +19
Radiative transfer studies of Type Ia supernovae (SNe Ia) hold the promise of constraining both the time-dependent density profile of the SN ejecta and its stratification by elemen…
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)…