The nature of 19 X-ray sources detected with INTEGRAL
Abstract
Since its launch on October 2002, the INTEGRAL satellite has revolutionized our knowledge of the hard X-ray sky thanks to its unprecedented imaging capabilities and source detection positional accuracy above 20 keV. Nevertheless, many of the newly-detected sources in the INTEGRAL sky surveys are of unknown nature. The combined use of available information at longer wavelengths (mainly soft X-rays and radio) and of optical spectroscopy on the putative counterparts of these new hard X-ray objects allows pinpointing their exact nature. Continuing our long-standing program running since 2004, here we report the classification, through optical spectroscopy, of 19 more unidentified or poorly studied high-energy sources detected with the IBIS instrument onboard INTEGRAL.
Keywords
Cite
@article{arxiv.1112.0318,
title = {The nature of 19 X-ray sources detected with INTEGRAL},
author = {N. Masetti and P. Parisi and E. Jimenez-Bailon and L. Bassani and A. Bazzano and A. J. Bird and V. Chavushyan and A. J. Dean and G. Galaz and R. Landi and A. Malizia and D. Minniti and L. Morelli and E. Palazzi and F. Schiavone and J. B. Stephen and P. Ubertini},
journal= {arXiv preprint arXiv:1112.0318},
year = {2011}
}
Comments
6 pages, 1 figure, 1 table. To appear in: proceedings of the INTEGRAL conference "The Extreme and Variable High Energy Sky", held on September 19-23, 2011 in Chia Laguna, Cagliari, Italy; Proceedings of Science, SISSA, in press, PoS(estremesky2011)074