Pulsars, transients and relativistic astrophysics: publications

How Do Magnetic Field Models Affect Astrophysical Limits on Light Axion-like Particles? An X-Ray Case 51�� with NGC 1275

ASTROPHYSICAL JOURNAL 930:1 (2022) ARTN 90

Authors:

James H Matthews, Christopher S Reynolds, MC David Marsh, Julia Sisk-Reynes, Payton E Rodman

Losing a minute every two years: SRG X-ray view of the rapidly accelerating X-ray pulsar SXP 1323

Astronomy and Astrophysics 661 (2022)

Authors:

IA Mereminskiy, AA Mushtukov, AA Lutovinov, SS Tsygankov, AN Semena, SV Molkov, AE Shtykovsky

Abstract:

The source SXP 1323 is a peculiar high-mass X-ray binary located in the Small Magellanic Cloud. It is renowned for its rapid spin-up. We investigate for the first time broadband X-ray properties of SXP 1323 as observed by the Mikhail Pavlinsky ART-XC and eROSITA telescopes on board the Spectrum-Roentgen-Gamma observatory. Using ART-XC and eROSITA data, we produced a first broadband 1 20 keV X-ray spectrum and estimated the pulsed fraction box 8 keV. With the addition of archival XMM-Newton observations, we traced the evolution of the spin period of SXP 1323 over the last five years and found that after 2016, the source switched to a linear spin-up with a rate of 29.9 s yr 1. The broadband X-ray spectrum is typical for accreting X-ray pulsars. It has a steep power-law index (A= 0.15) and an exponential cutoff energy of 5.1 keV. No significant difference between spectra obtained in states with and without pulsations were found.

Magnetic massive stars from stellar mergers

Proceedings of the International Astronomical Union Cambridge University Press (CUP) 18:S361 (2022) 212-217

Authors:

Fabian RN Schneider, Sebastian T Ohlmann, Philipp Podsiadlowski, Friedrich K Röpke, Steven A Balbus, Rüdiger Pakmor, Volker Springel

SRG/ART-XC, Swift, NICER, and NuSTAR study of different states of the transient X-ray pulsar MAXI J0903–531

Astronomy & Astrophysics EDP Sciences 661 (2022) a45

Authors:

Sergey S Tsygankov, Sergey V Molkov, Victor Doroshenko, Alexander A Mushtukov, Ilya A Mereminskiy, Andrei N Semena, Philipp Thalhammer, Jörn Wilms, Alexander A Lutovinov

Searching for pulsars associated with polarised point sources using LOFAR: Initial discoveries from the TULIPP project

Astronomy & Astrophysics EDP Sciences 661 (2022) a87

Authors:

C Sobey, CG Bassa, SP O’Sullivan, JR Callingham, CM Tan, JWT Hessels, VI Kondratiev, BW Stappers, C Tiburzi, G Heald, T Shimwell, RP Breton, M Kirwan, HK Vedantham, E Carretti, J-M Grießmeier, M Haverkorn, A Karastergiou

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