2001ApJ...556..108Q

Query : 2001ApJ...556..108Q

2001ApJ...556..108Q - Astrophys. J., 556, 108-112 (2001/July-3)

Keck adaptive optics observations of the radio galaxy 3C 294: a merging system at z=1.786.

QUIRRENBACH A., ROBERTS J.E., FIDKOWSKI K., DE VRIES W. and VAN BREUGEL W.

Abstract (from CDS):

We present seeing-limited and adaptive optics images of the z=1.786 radio galaxy 3C 294 in the H and K' infrared bands obtained at Keck Observatory. The infrared emission of 3C 294 is dominated by two distinct components separated by ∼1" (9 kpc). The eastern knot contains an unresolved core that contributes ∼4% of the K'-band light; we identify this core with the active nucleus. The western component is about 2.5 times brighter. The most plausible interpretation of the near-infrared morphology is an ongoing merger event, with the active nucleus located in the less massive of the two galaxies.

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Journal keyword(s): Galaxies: Active - Galaxies: Evolution - Galaxies: High-Redshift - galaxies: individual (3C 294) - Galaxies: Interactions - Instrumentation: Adaptive Optics

Simbad objects: 4

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Number of rows : 4
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 NGC 5272 193 RG* 13 41 43.5956490888 +28 29 51.298319724   15.65 14.75     G8III 50 0
2 USNO-A2.0 1200-07227692 * 14 06 43.3576218216 +34 11 23.351605764           ~ 4 0
3 3C 294 rG 14 06 44.317 +34 11 30.19           ~ 234 1
4 EGGR 150 WD* 21 52 25.3789636654 +02 23 19.576176425 11.942 12.732 12.743 12.839 12.938 DA2.8 213 0

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