A search for molecular gas in high redshift radio galaxies

Details A search for molecular gas in high redshift radio galaxies A search for molecular gas in high redshift radio galaxies

1996-10-22

arxiv.org/abs/astro-ph/9610170v1

Astronomy and Astrophysics

Astrophysics

Accepted for AA, 9 pages, 6 figures

Scientific paper

We present results of an extensive search for molecular gas in 14 high redshift ($z>2$) radio galaxies. Radio galaxies with redshifts between 2.0 and 4.3 were observed during several sessions on two different single-dish telescopes (IRAM and JCMT) and two interferometric arrays (VLA and OVRO). No significant CO emission to a 2$\sigma$ limit of a few times 10^{10} K km s^{-1} pc^2 was detected in any of these objects. The limits on the CO emission achieved indicate that, assuming a CO-H$_2$ conversion factor similar to the Galactic value, the mass of enriched molecular gas in these galaxies is less than $10^{11} $M$_{\odot}$. This suggests that distant radio galaxies may not be forming stars at the extremely high rates that have earlier been proposed, although they may still be forming stars at rates comparable to those of local starburst galaxies.

Affiliated with

Also associated with

No associations

Rating

A search for molecular gas in high redshift radio galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A search for molecular gas in high redshift radio galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for molecular gas in high redshift radio galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-700674