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Long-term Photometric Behavior of Outbursting AM CVn Systems
David Levitan, Paul J. Groot, Thomas A. Prince +5
The AM CVn systems are a class of He-rich, post-period minimum, semi-detached, ultra-compact binaries. Their long-term light curves have been poorly understood due to the few syste…
Stacking the Invisibles: A Guided Search for Low-Luminosity Milky Way Satellites
B. Sesar, S. R. Banholzer, J. G. Cohen +9
Almost every known low-luminosity Milky Way dwarf spheroidal (dSph) satellite galaxy contains at least one RR Lyrae star. Assuming that a fraction of distant (60 < d_{helio} < 100…
Identification of the Optical Counterpart of Fermi Black Widow Millisecond Pulsar PSR J1544+4937
Sumin Tang, David L. Kaplan, Sterl Phinney +10
We report the optical identification of the companion to the {\it Fermi} black widow millisecond pulsar PSR J1544+4937. We find a highly variable source on Keck LRIS images at the…
Serendipitous Discovery of a Thin Stellar Stream near the Galactic Bulge in the Pan-STARRS1 3Pi Survey
Edouard J. Bernard, Annette M. N. Ferguson, Edward F. Schlafly +22
We report the discovery of a thin stellar stream found in Pan-STARRS1 photometry near the Galactic bulge in the constellation of Ophiuchus. It appears as a coherent structure in th…
IPAC Image Processing and Data Archiving for the Palomar Transient Factory
Russ R. Laher, Jason Surace, Carl J. Grillmair +26
The Palomar Transient Factory (PTF) is a multi-epochal robotic survey of the northern sky that acquires data for the scientific study of transient and variable astrophysical phenom…
313 new asteroid rotation periods from Palomar Transient Factory observations
Chan-Kao Chang, Wing-Huen Ip, Hsing-Wen Lin +11
A new asteroid rotation period survey have been carried out by using the Palomar Transient Factory (PTF). Twelve consecutive PTF fields, which covered an area of 87 deg in the…