SIMBAD references

2015MNRAS.449..597T - Mon. Not. R. Astron. Soc., 449, 597-604 (2015/May-1)

Chandra identification of two AGN discovered by INTEGRAL.

TOMSICK J.A., KRIVONOS R., RAHOUI F., AJELLO M., RODRIGUEZ J., BARRIERE N., BODAGHEE A. and CHATY S.

Abstract (from CDS):

Here, we report on observations of two hard X-ray sources that were originally discovered with the INTEGRAL satellite: IGR J04059+5416 and IGR J08297-4250. We use the Chandra X-ray Observatory to localize the sources and then archival near-IR images to identify the counterparts. Both sources have counterparts in the catalogue of extended 2 Micron All-Sky Survey sources, and the counterpart to IGR J04059+5416 has been previously identified as a galaxy. Thus, we place IGR J04059+5416 in the class of active galactic nuclei (AGN), and we suggest that IGR J08297-4250 is also an AGN. If this identification is correct, the near-IR images suggest that the host galaxy of IGR J08297-4250 may be merging with a smaller nearby galaxy. For IGR J04059+5416, the 0.3-86 keV spectrum from Chandra and INTEGRAL is consistent with an absorbed power-law with a column density of N_H = (3.1^+2.0_-1.5)×10^22/ cm2 and a photon index of Γ = 1.4±0.7, and we suggest that it is a Seyfert galaxy. For IGR J08297-4250, the photon index is similar, Γ = 1.5±0.8, but the source is highly absorbed (N_H = (6.1^+10.1_-4.3)×10^23/ cm2).

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): stars: individual: IGR J04059+5416 - stars: individual: IGR J08297-4250 - galaxies: active - galaxies: Seyfert - X-rays: galaxies - X-rays: general

Simbad objects: 32

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