Water at Z=2.286

Details Water at Z=2.286 Water at Z=2.286

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...273l..19e&link_type=abstract

Astronomy and Astrophysics, Vol.273, NO. 1/JUNI, P. L19, 1993

Astronomy and Astrophysics

Astrophysics

11

Scientific paper

We have used the IRAM 30m telescope to search for rotational lines of water and molecular oxygen in the very distant galaxy IRAS 10214+4724 at a redshift of 2.286. We report the tentative detection of the 2_11_ - 2_02_ para transition of H_2_O at 752.0 GHz. This would be the first time that a thermal rotational line of water is detected. The ortho transitions 1_10_ - 1_01_ and 4_14_ - 3_21_ at 556.9 and 380.2 GHz are not detected with intensities at most twice that of the detected 752 GHz line. We cannot derive the water abundance since the line is likely optically thick. Assuming that the levels are thermalized at 100 K, the surface filling factor of the H_2_O emitting cores with respect to the total galaxy size of 8 kpc is about 3 10^-3^. We have also observed three lines of molecular oxygen towards the same source, but detected none. Relative to H_2_, this implies an abundance ratio [O_2_]/[H_2_] <= 3 10^-4^.

Affiliated with

Also associated with

No associations

Rating

Water at Z=2.286 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 Water at Z=2.286, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water at Z=2.286 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1732933