SIMBAD references

2007A&A...469.1063I - Astronomy and Astrophysics, volume 469, 1063-1068 (2007/7-3)

A probable accretion-powered X-ray pulsar in IGR J00370+6122.

IN'T ZAND J.J.M., KUIPER L., DEN HARTOG P.R., HERMSEN W. and CORBET R.H.D.

Abstract (from CDS):

Serendipitous and dedicated observations with the Rossi X-ray Timing Explorer (RXTE) and the International Gamma-Ray Astrophysics Laboratory (INTEGRAL) were analyzed to study the transient high-mass X-ray binary IGR J00370+6122, in particular to search for an accretion-powered pulsar as companion to the optically identified (Reig et al., 2005A&A...440..637R) B0.5 II-III donor star. Highly variable fluxes were measured in the RXTE data during outbursts of up to 2.2x10–10erg/cm2/s (3-20keV; averaged over 1h). During a 1-h time span with RXTE flaring activity was detected with an oscillating signal repeating 7 times. Epoch folding reveals a 346±6s period. We propose that this is the period of the putative pulsar. This measurement puts the source in the wind-fed accretion region of the Porb (=15.7d) versus Ppulse ``Corbet'' diagram. The 3 to 60keV flare spectrum was modeled with an absorbed power law and the absorption column was found to be 15-20 times larger than the interstellar value and the value obtained for the optical counterpart, suggesting an accretor embedded in the wind of the donor star.

Abstract Copyright:

Journal keyword(s): X-rays: binaries - X-rays: individual: IGR J00370+6122 - X-rays: individual: 1RXS J003709.6+612131 - X-rays: individual: 1RXS J003357.9+612645 - accretion, accretion disks - stars: neutron

Simbad objects: 12

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2022.08.09-16:58:47

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