77 citations · 201 across the 6 of their papers we have counts for
8 papers
The Synchrotron Emission Pattern of IntraBinary Shocks
D. Kandel, Roger W. Romani, Hongjun An
We model millisecond pulsars winds colliding with radiatively-driven companion winds in black widow and redback systems. For the redbacks, the geometry of this intrabinary shock (I…
X-ray timing studies of the low-field magnetar CXOU J164710.2-455216
Hongjun An, Robert Archibald
We report results of X-ray timing analyses for the low-field magnetar CXOU~J164710.2455216 which exhibited multiple outbursts. We use data taken with NICER, NuSTAR, Chandra, and…
High-Energy Variability of PSR J1311-3430
Hongjun An, Roger W. Romani, Tyrel Johnson +2
We have studied the variability of the black-widow type binary millisecond pulsar PSR J13113430 from optical to gamma-ray energies. We confirm evidence for orbital modulation in…
PKS 1954-388: RadioAstron Detection on 80,000 km Baselines and Multiwavelength Observations
P. G. Edwards, Y. Y. Kovalev, R. Ojha +24
We present results from a multiwavelength study of the blazar PKS 1954-388 at radio, UV, X-ray, and gamma-ray energies. A RadioAstron observation at 1.66 GHz in June 2012 resulted…
Contemporaneous broadband observations of three high-redshift BL Lac Objects
LAT Collaboration
We have collected broadband spectral energy distributions (SEDs) of three BL Lac objects, 3FGL J0022.11855 (z=0.689), 3FGL J0630.92406 (z >~ 1.239), and 3FGL J0811.27529 (…
Deep NuSTAR and Swift Monitoring Observations of the Magnetar 1E 1841-045
Hongjun An, Robert F. Archibald, Romain Hascoet +15
We report on a 350-ks NuSTAR observation of the magnetar 1E 1841-045 taken in 2013 September. During the observation, NuSTAR detected six bursts of short duration, with …