2003MNRAS.342L..53D

Query : 2003MNRAS.342L..53D

2003MNRAS.342L..53D - Mon. Not. R. Astron. Soc., 342, L53-L57 (2003/July-2)

Detection of type 2 quasars in the radio galaxies B3 0731+438 and 3C 257.

DERRY P.M., O'BRIEN P.T., REEVES J.N., WARD M.J., IMANISHI M. and UENO S.

Abstract (from CDS):

We present XMM-Newton observations and spectral fitting of two high-redshift, [Oiii]-luminous, narrow-line radio galaxies, B3 0731+438 and 3C 257. Their X-ray continua are well fitted by a partial covering model with intrinsically unabsorbed and absorbed power-law components. The spectral models indicate that both objects harbour highly obscured nuclei, with NH~ 0.5-2 x1023/cm2. Correcting for this absorption we find large intrinsic luminosities in the range LX~ 0.2-1x1045 erg/s. Thus, both sources are type 2 quasars.

Abstract Copyright: 2003 RAS

Journal keyword(s): galaxies: active - galaxies: individual: B3 0731+438 - galaxies: individual: 3C 257 - quasars: general - X-rays: galaxies

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [VV2006] J033229.9-275106 Sy2 03 32 29.8487 -27 51 05.879   27.5675 25.05 23.970 24.5370 ~ 101 0
2 3C 183 rG 07 35 22.4525276184 +43 44 25.041453720           ~ 56 1
3 [STS2002] 52 AGN 08 48 38.0 +44 53 53       24.220   ~ 32 0
4 NVSS J090530+340756 rG 09 05 30.101 +34 07 56.90   24.0 23.800 23.500   ~ 163 1
5 IRAS 09104+4109 Sy2 09 13 45.4951283928 +40 56 28.215343572   19.69 19.21     ~ 260 1
6 3C 257 rG 11 23 09.062 +05 30 20.58           ~ 92 1

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