IGR J16426+6536

	IGR J16426+6536


	Other name = XMMLS1 J164303.7+653253

Type	Redshift	Radio Counterpart			Infrared/Optical Counterpart
		R.A. (J2000)	Dec. (J2000)	References	R.A. (J2000)	Dec. (J2000)	References
NLSey 1.5	0.323				USNO-A2.0 1500-06133361 USNO B1.0 1555-0172189		Parisi et al. 2008 ATel 1800 Butler et al. 2009, ApJ
					16h 43m 04.07s	+65^o 32' 50.9"
Published Papers		Masetti et al. 2009, A&A, 495, 121 Butler et al. 2009, ApJ, 698, 502 Panessa et al. 2011, accepted in MNRAS arXiV 1106.3023

Miscellaneous :

Ibarra et al. 2008 ATel 1397:

XMM source: 4-σ detection, but likely a genuine source (0.5% chance probability of false detection
2 other Rosat sources within INTEGRAL error box
3 X-ray sources not associated, 1 only the counterpart to the IGR

Parisi et al. 2008 ATel 1800:

Optical spectroscopy of XMMSL1 J164303.7+653253
Optical counterpart is USNO-A2.0 1500-06133361, with R ~ 18.9
Optical spectrum of the source: blue continuum + several redshifted emission features among which:
Hβ, Hγ, Hδ, and Hε Balmer lines, and narrow [OII] and [OIII] line
z=0.323+-0.001
XMMLS1 J164303.7+653253 = Seyfert 1 AGN
Confident about the association of the XMM source and the INTEGRAL one=>IGR J16426+6536 is a Sey 1 AGN

Masetti et al. 2009:

Optical spectroscopy
Narrow Line Sey 1
v_BLR=1900 km/s, M_BH=1.1e7 M_SUN

Butler et al. 2009:

Optical spectroscopy
Sey 1.5 at z=0.323
M_BH=0.9e7 M_SUN

Last updated 20 june 2011

Jerome Rodriguez