CO Observations of the High Redshift Radio Galaxy 53W002

Details CO Observations of the High Redshift Radio Galaxy 53W002 CO Observations of the High Redshift Radio Galaxy 53W002

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110.1564y&link_type=abstract

Astronomical Journal v.110, p.1564

Astronomy and Astrophysics

Astronomy

11

Early Universe, Radio Lines: Galaxies, Galaxies: Individual: 53W002

Scientific paper

We observed a high redshift radio galaxy 53W002 at z =2.390 with the Nobeyama 45 m telescope aiming at a detection of a redshifted ^12^CO (J=1-0) emission line. The galaxy was discovered in the Leiden Berkeley Deep Survey and is known to have a blue SED and is a candidate for a genuinely young galaxy. We detected a weak (-5 mJy) emission-line feature at z = 2.392; the feature was significant in our November 1993 observations and marginally confirmed in the follow-up observations held in December 1993 and February 1994. If the detected emission-line feature is really a redshifted CO emission line associated with 53W002, its luminosity is 1.2 x 10^11^ h^-2^ K km s^-1^ pc^2^ (q_0_ = 0.5), or M(H_2_) ~ 5 x 10^11^ h^-2^ M_sun_, adopting the galactic CO-to-H_2_ conversion factor.

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