activity
20122026
most citedOn the maximum accretion luminosity of magnetized neutron stars: connecting X-ray pulsars and ultraluminous X-ray sources

226 citations · 2.4k across the 77 of their papers we have counts for

collaborators
Showing 2025Show all

9 papers · 1 filter

astro-ph.HE2025

Propeller effect in action: Unveiling quenched accretion in the transient X-ray pulsar 4U 0115+63

Hua Xiao, Sergey S. Tsygankov, Valery F. Suleimanov +3

The Be/X-ray pulsar 4U 0115+63 underwent a type II outburst in 2023. After the outburst, similar to the outbursts in 2015 and 2017, the source decayed into a quiescent state. Two o…

astro-ph.HE2025

Angle-dependent hardening of the reprocessed spectra in ULXs powered by accretion onto neutron stars

Sricheta Karmakar, Alexander A. Mushtukov, Matthew Middleton

It is anticipated that mass accretion rates exceeding approximately in X-ray pulsars lead to radiation-driven outflows from super-critical accretion disc…

astro-ph.HE2025

Gamma-ray lines, electron-positron annihilation, and possible radio emission in X-ray pulsars

Alexander A. Mushtukov, Emir Tataroglu, Alex J. Cooper +1

Accretion onto neutron stars (NSs) in X-ray pulsars (XRPs) results in intense X-ray emission, and under specific conditions, high-energy nuclear interactions that produce gamma-ray…

astro-ph.HE2025

Probing the emission geometry of the X-ray pulsar 2S 1417624 during a weak outburst with NICER, IXPE, and NuSTAR

Menglei Zhou, Pengju Wang, Honghui Liu +12

We report results from a multi-mission observational campaign of the transient X-ray pulsar 2S~1417624 during its 2025 outburst, using data from NICER, IXPE, and NuSTAR. Phase-a…

astro-ph.HE2025★ 1 cited

Probing the polarized emission from the accretion-powered pulsar 4U 1907+09 with IXPE

Menglei Zhou, Lorenzo Ducci, Honghui Liu +12

We present observations of the accretion-powered X-ray pulsar (XRP) 4U 1907+09, conducted with the Imaging X-ray Polarimetry Explorer (IXPE) that delivers the first high-quality po…

astro-ph.HE2025★ 1 cited

Discovery of a 0.8-mHz quasi-periodic oscillation in the transient X-ray pulsar SXP31.0 and associated timing transitions

Alexander Salganik, Sergey S. Tsygankov, Sergey V. Molkov +5

We present the first broadband spectral and timing study of the Be/X-ray pulsar XTE J0111.27317 (SXP31.0) during the first major outburst since its discovery in 1998. This giant…

astro-ph.HE2025

Physics of Strong Magnetism with eXTP

Mingyu Ge, Long Ji, Roberto Taverna +47

In this paper we present the science potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission, in its new configuration, for studies of strongly magnetized compact obj…

astro-ph.HE2025★ 3 cited

Exploring polarization and geometry in the X-ray pulsar 4U 1538-52

Vladislav Loktev, Sofia V. Forsblom, Sergey S. Tsygankov +12

The Imaging X-ray Polarimetry Explorer (IXPE) observations of accreting X-ray pulsars (XRPs) continue to provide novel insights into the physics and geometry of these sources. We p…

astro-ph.HE2025★ 7 cited

Revealing two orthogonally polarized spectral components in Vela X-1 with IXPE

Sofia V. Forsblom, Sergey S. Tsygankov, Valery F. Suleimanov +2

Polarimetric observations of X-ray pulsars (XRPs) have provided us with the key to unlocking their geometrical properties. Thanks to the Imaging X-ray Polarimetry Explorer (IXPE) t…