FN Archimer Export Format
PT J
TI WATER at z=2.286 ?
BT 
AF ENCRENAZ, PJ
   COMBES, F
   CASOLI, F
   GERIN, M
   PAGANI, L
   HORELLOU, C
   GAC, Christian
AS 1:1,2;2:1,2;3:1,2;4:1,2;5:2;6:2;7:2;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 ENS, CNRS, URA 336, 24 RUE LHOMOND, F-75231 PARIS 05, FRANCE.
   OBSERV MEUDON, DEMIRM, CNRS, URA 336, F-92195 MEUDON, FRANCE.
C2 ENS, FRANCE
   CNRS, FRANCE
IF 2.79
TC 11
UR https://archimer.ifremer.fr/doc/00218/32898/31388.pdf
LA English
DT Article
DE ;INTERSTELLAR MEDIUM, MOLECULES;GALAXIES, INDIVIDUAL, IRAS10214+4724;GALAXIES, INTERSTELLAR MATTER;RADIO LINES, MOLECULAR, INTERSTELLAR
AB 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 H2O 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 H2O 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 [O2]/[H-2] less-than-or-equal-to 3 10(-4).
PY 1993
PD JUL
SO Astronomy & Astrophysics
SN 0004-6361
PU Edp Sciences S A
VL 273
IS 1
UT A1993LF97300006
ID 32898
ER

EF