activity
19982024
most citedHigh variability in Vela X-1: giant flares and off states

140 citations · 1.2k across the 51 of their papers we have counts for

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Showing 2018Show all

5 papers · 1 filter

astro-ph.HE2018

Cyclotron lines in highly magnetized neutron stars

R. Staubert, J. Trümper, E. Kendziorra +10

Cyclotron lines, also called cyclotron resonant scattering features (CRSF) are spectral features, generally appearing in absorption, in the X-ray spectra of objects containing high…

astro-ph.HE2018

The Orbital Parameters of the Eclipsing High-Mass X-ray Binary Pulsar IGR J16493-4348 from Pulsar Timing

Aaron B. Pearlman, Joel B. Coley, Robin H. D. Corbet +1

IGR J16493-4348 is an eclipsing supergiant high-mass X-ray binary (sgHMXB), where accretion onto the compact object occurs via the radially outflowing stellar wind of its early B-t…

astro-ph.HE2018

Explaining the asymmetric line profile in Cepheus X-4 with spectral variation across pulse phase

Yash Bhargava, Varun Bhalerao, Ralf Ballhausen +4

The high mass X-ray binary Cep X-4, during its 2014 outburst, showed evidence for an asymmetric cyclotron line in its hard X-ray spectrum. The 2014 spectrum provides one of the cle…

astro-ph.HE2018

Multiple cyclotron line-forming regions in GX 301-2

F. Fuerst, S. Falkner, D. Marcu-Cheatham +6

We present two observations of the high-mass X-ray binary GX 301-2 with NuSTAR, taken at different orbital phases and different luminosities. We find that the continuum is well des…

astro-ph.HE2018

Discovery of pulsation dropout and turn-on during the high state of the accreting X-ray pulsar LMC X-4

McKinley C. Brumback, Ryan C. Hickox, Matteo Bachetti +6

Two \textit{NuSTAR} observations of the luminous X-ray pulsar LMC X-4 in October and November 2015 captured several bright accretion flares from this source, which has a long histo…