2022A&A...661A..21D


Query : 2022A&A...661A..21D

2022A&A...661A..21D - Astronomy and Astrophysics, volume 661A, 21-21 (2022/5-1)

SRGA J124404.1-632232/SRGU J124403.8-632231: New X-ray pulsar discovered in the all-sky survey by the SRG.

DOROSHENKO V., STAUBERT R., MAITRA C., RAU A., HABERL F., SANTANGELO A., SCHWOPE A., WILMS J., BUCKLEY D.A.H., SEMENA A., MEREMINSKIY I., LUTOVINOV A., GROMADZKI M., TOWNSEND L.J. and MONAGENG I.M.

Abstract (from CDS):

Ongoing all-sky surveys by the eROSITA and the Mikhail Pavlinsky ART-XC telescopes on board the Spectrum-Roentgen-Gamma (SRG) mission have already revealed over a million of X-ray sources. One of them, SRGA J124404.1-632232/SRGU J124403.8-632231, was detected as a new source in the third (of the planned eight) consecutive X-ray surveys by ART-XC. Based on the properties of the identified optical counterpart, it was classified as a candidate X-ray binary. We report on the follow-up observations of this source with the Nuclear Spectroscopic Telescope Array, the Neil Gehrels Swift Observatory, and the Southern African Large Telescope, which allowed us to unambiguously confirm the initial identification and establish SRGU J124403.8-632231 as a new X-ray pulsar with a spin period of ∼538 s and a Be-star companion, making it one of the first Galactic X-ray pulsars discovered by the SRG.

Abstract Copyright: © ESO 2022

Journal keyword(s): pulsars: individual: SRGA J124404.1-632232/SRGU J124403.8-632231 - stars: neutron - binaries: general

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 940 0
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16153 1
3 HD 245770 HXB 05 38 54.5748918624 +26 18 56.836952784 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 927 0
4 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.70 10.66     B1.5Iaeq 641 0
5 2MASS J12440380-6322320 IR 12 44 03.80856 -63 22 32.0592           ~ 5 0
6 V* V850 Cen HXB 13 01 17.0968941216 -61 36 06.637549788   15.6 14.40     B2Vne 302 0

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2022.08.09-15:51:52

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