IGR J21277+5656

	IGR J21277+5656


	Other name = SWIFT J2127.4+5654

Type	Redshift	Radio Counterpart			Infrared/Optical Counterpart
		R.A. (J2000)	Dec. (J2000)	References	R.A. (J2000)	Dec. (J2000)	References
AGN/Sey 1 , candidate NL Sey 1
Published Papers		Krivonos et al. 2007A&A, 475, 775 Malizia et al. 2008 MNRAS, 389, 1360 Winter et al. 2009ApJ, 690, 1322

Miscellaneous :

Malizia et al. 2008 :

INTEGRAL/IBIS and Swift observations
Γ~1.9 no intrinsic absorption
Broken power law or cut-off power law fit the IBIS-XRT spectrum. Break at ~ 30 keV, cutoff at 33 keV
Source is a candidate NL Sey 1
M_BH=1.5 10⁷ M_sun

Winter et al. 2009 :

Swift observations
N_{H, Gal} = 0.806 x 10²² cm^-2, N^{H, abs} = 0.424 x 10²² cm^-2, Γ=2.02
Sey 1

Last updated 14 April 2010

Jerome Rodriguez