449 citations · 8.8k across the 143 of their papers we have counts for
143 papers
Green Bank Telescope Discovery of the Redback Binary Millisecond Pulsar PSR J0212+5321
Karen I. Perez, Slavko Bogdanov, Jules P. Halpern +1
We report the discovery of a 2.11 ms binary millisecond pulsar during a targeted search of the redback optical candidate coincident with the -ray source 3FGL J0212.5+5320 using…
Do Central Compact Objects have Carbon Atmospheres?
J. A. J. Alford, J. P. Halpern
Only three of the dozen central compact objects (CCOs) in supernova remnants (SNRs) show thermal X-ray pulsations due to non-uniform surface temperature (hot-spots). The absence of…
Luminous Optical and X-ray Flaring of the Putative Redback Millisecond Pulsar 1FGL J0523.52529
Jules P. Halpern, Karen I. Perez, Slavko Bogdanov
Several redback and black widow millisecond pulsar binaries have episodes of flaring in X-rays and optical. We initially detected such behavior from the Fermi selected redback cand…
Swift J0503.7-2819: A Short-Period Asynchronous Polar or Stream-Fed Intermediate Polar
J. P. Halpern
We analyze a 7.4 hr XMM-Newton light curve of the cataclysmic variable Swift J0503.7-2819, previously classified using optical periods as an intermediate polar (IP) with an orbital…
Optical Light Curve of 4FGL J0935.3+0901: A Flaring Black Widow Candidate
J. P. Halpern
I obtained time-series photometry of the compact binary candidate for the Fermi source 4FGL J0935.3+0901. Superposed on the 2.44 hr orbital modulation are day-to-day variations and…
Discovery, Timing, and Multiwavelength Observations of the Black Widow Millisecond Pulsar PSR J1555-2908
Paul S. Ray, Lars Nieder, Colin J. Clark +21
We report the discovery of PSR J1555-2908, a 1.79 ms radio and gamma-ray pulsar in a 5.6 hr binary system with a minimum companion mass of 0.052 . This fast and energetic…