163 citations · 481 across the 11 of their papers we have counts for
11 papers
On the Deepest Search for Galactic Center Pulsars and an Examination of an Intriguing Millisecond Pulsar Candidate
Karen I. Perez, Vishal Gajjar, Slavko Bogdanov +6
We report results of one of the most sensitive pulsar surveys to date targeting the innermost region of the Galactic Center (GC) using the Robert C. Byrd Green Bank Telescope (GBT)…
Noisy Timing Behavior is a Feature of Central Compact Object Pulsars
K. I. Perez, E. V. Gotthelf, J. P. Halpern
We present a timing study of the three known central compact object (CCO) pulsars, isolated cooling neutron stars in supernova remnants, using Chandra, XMM-Newton and NICER observa…
The Proper Motion of the High Galactic Latitude Pulsar Calvera
Michela Rigoselli, Sandro Mereghetti, Jules P. Halpern +2
Calvera (1RXS J141256.0+792204) is a pulsar of characteristic age 285 kyr at a high Galactic latitude of b=+37°, detected only in soft thermal X-rays. We measure a new and precise…
Resolving the Periods of the Asynchronous Polar 1RXS J083842.1282723
J. P. Halpern
1RXS J083842.1282723 is a nearly synchronous magnetic cataclysmic variable with a simple X-ray light curve. While its orbital period was fairly well established at $P_{\rm orb}=…
A Surprising Periodicity Detected During a Super-outburst of V844 Herculis by TESS
A. Greiveldinger, P. Garnavich, C. Littlefield +6
We identify a previously undetected periodicity at a frequency of 49.080.01 d (period of 29.340.01 minutes) during a super-outburst of V844 Her observed by TESS. V…
The First Glitch in a Central Compact Object Pulsar: 1E 1207.4-5209
E. V. Gotthelf, J. P. Halpern
Since its discovery as a pulsar in 2000, the central compact object (CCO) 1E 1207.4-5209 in the supernova remnant PKS 1209-51/52 had been a stable 0.424 s rotator with an extremely…