IGRJ18179-1621: An obscured X-ray pulsar discovered by INTEGRAL
High Energy Astrophysical Phenomena
2015-06-05 v2
Abstract
We report on all the INTEGRAL and Swift data collected during the first outburst observed from IGRJ18179-1621. The broad-band spectral analysis showed that the X-ray emission from the source is heavily absorbed (N_H~10^23 cm^-2), and well described by a flat power-law with a high energy rollover (cutoff energy 9-12 keV, e-folding energy 4-7 keV). We found some evidence of a cyclotron absorption feature at 22\pm1 keV. Together with the pulsations at 11.8s discovered in the XRT data, this evidence would suggest that IGRJ18179-1621 is an obscured magnetized accreting neutron star, possibly part of a supergiant high mass X-ray binary or a Be X-ray binary system.
Keywords
Cite
@article{arxiv.1207.4557,
title = {IGRJ18179-1621: An obscured X-ray pulsar discovered by INTEGRAL},
author = {E. Bozzo and C. Ferrigno and M. Tuerler and A. Manousakis and M. Falanga},
journal= {arXiv preprint arXiv:1207.4557},
year = {2015}
}
Comments
Accepted for publication on A&A V2. Corrected few typos