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New CO and Millimeter Continuum Observations of the z=2.394 Radio Galaxy 53W002

Danielle Alloin·Richard Barvainis·Stephane Guilloteau
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Abstract

The z=2.39 radio galaxy 53W002 lies in a cluster of Ly-alpha emission line objects and may itself be undergoing a major burst of star formation. CO(3--2) emission, at 102 GHz, was detected from 53W002 by Scoville et al. (1997a), who also reported a possible 30 kpc extension and velocity gradient suggesting a rotating gaseous disk. In this paper we present new interferometric CO(3--2) observations which confirm the previous line detection with improved signal-to-noise ratio, but show no evidence for source extension or velocity gradient. The compact nature of the CO source and the molecular mass found in this object are similar to luminous infrared galaxies and other AGNs previously studied.

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Danielle Alloin, Richard Barvainis, Stephane Guilloteau. 1999-10-11. New CO and Millimeter Continuum Observations of the z=2.394 Radio Galaxy 53W002. https://doi.org/10.1086/312429

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