activity
20132023
most citedMAXI J1820+070 with NuSTAR I. An increase in variability frequency but a stable reflection spectrum: coronal properties and implications for the inner disc in black hole binaries

107 citations · 917 across the 42 of their papers we have counts for

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38 papers · 1 filter

astro-ph.HE2023

Simultaneous NICER and NuSTAR Observations of the Ultra-compact X-ray Binary 4U 0614+091

David Moutard, Renee Ludlam, Javier A. García +13

We present the first joint NuSTAR and NICER observations of the ultra-compact X-ray binary (UCXB) 4U 0614+091. This source shows quasi-periodic flux variations on the timescale of…

astro-ph.HE2023★ 1 cited

Accretion spin-up and a strong magnetic field in the slow-spinning Be X-ray binary MAXI J0655-013

Sean N. Pike, Mutsumi Sugizaki, Jakob van den Eijnden +8

We present MAXI and NuSTAR observations of the Be X-ray binary, MAXI J0655-013, in outburst. NuSTAR observed the source once early in the outburst, when spectral analysis yields a…

astro-ph.HE2023★ 8 cited

Classifying IGR J15038-6021 as a magnetic CV with a massive white dwarf

John A. Tomsick, Snehaa Ganesh Kumar, Benjamin M. Coughenour +8

Cataclysmic variables (CVs) are binary systems consisting of a white dwarf (WD) accreting matter from a companion star. Observations of CVs provide an opportunity to learn about ac…

astro-ph.HE2023★ 12 cited

Reflection and timing study of the transient black hole X-ray binary MAXI J1803-298 with NuSTAR

Benjamin M. Coughenour, John A. Tomsick, Guglielmo Mastroserio +9

The transient black hole X-ray binary MAXI J1803-298 was discovered on 2021 May 1, as it went into outburst from a quiescent state. As the source rose in flux it showed periodic ab…

astro-ph.HE2023★ 3 cited

Strongly magnetized accretion in two ultracompact binary systems

Thomas J. Maccarone, Thomas Kupfer, Edgar Najera Casarrubias +5

We present the discoveries of two of AM CVn systems, Gaia14aae and SDSS~J080449.49+161624.8, which show X-ray pulsations at their orbital periods, indicative of magnetically collim…

astro-ph.HE2022★ 1 cited

X-ray emission mechanisms in accreting white dwarfs

K. L. Page, A. W. Shaw

In this chapter we consider the processes which can lead to X-ray emission from different types of cataclysmic variable stars (CVs). CVs are semi-detached, binary star systems wher…