SIMBAD references

2009ApJ...698..502B - Astrophys. J., 698, 502-508 (2009/June-2)

Identifications of five INTEGRAL sources via optical spectroscopy.

BUTLER S.C., TOMSICK J.A., CHATY S., HERAS J.A.Z., RODRIGUEZ J., WALTER R., KAARET P., KALEMCI E. and OZBEY M.

Abstract (from CDS):

The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) is discovering hundreds of new hard X-ray sources, many of which remain unidentified. We report on optical spectroscopy of five such sources for which X-ray observations at lower energies (∼0.5-10 keV) and higher angular resolutions than INTEGRAL have allowed for unique optical counterparts to be located. We find that INTEGRAL Gamma-Ray (IGR) J16426+6536 and IGR J22292+6647 are Type 1 Seyfert active galactic nuclei (with IGR J16426+6536 further classified as a Seyfert 1.5) which have redshifts of z = 0.323 and z = 0.113, respectively. IGR J18308-1232 is identified as a cataclysmic variable (CV), and we confirm a previous identification of IGR J19267+1325 as a magnetic CV. IGR J18214-1318 is identified as an obscured high-mass X-ray binary (HMXB), which are systems thought to have a compact object embedded in the stellar wind of a massive star. We combine Chandra fluxes with distances based on the optical observations to calculate X-ray luminosities of the HMXB and CVs, finding L_0.3-10 keV_= 5x1036 erg/s for IGR J18214-1318, L_0.3-10 keV_= 1.3x1032 erg/s for IGR J18308-1232, and L_0.3-10 keV_= 6.7x1032 erg/s for IGR J19267+1325.

Abstract Copyright:

Journal keyword(s): galaxies: Seyfert - novae, cataclysmic variables - techniques: spectroscopic - X-rays: binaries - X-rays: individual (IGR J16426+6536, IGR J18214-1318, IGR J18308-1232, IGR J19267+1325, IGR J22292+6647)

Simbad objects: 8

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2020.01.19-02:35:50

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