Links
- ORCID
- ORCID
- ORCID
- ORCID
- Crossref | PDF
- [hdl.handle.net] | PDF
- [arxiv.org] | PDF
- [www.researchgate.net] | PDF
- [biblio.ugent.be] | PDF
- [arxiv.org] | PDF
- [authors.library.caltech.edu] | PDF
- [biblio.ugent.be] | PDF
- [orca.cf.ac.uk] | PDF
- [repository.uwc.ac.za] | PDF
- [openaccess.leidenuniv.nl] | PDF
Tools
H2O emission in high-zultra-luminous infrared galaxies
,
P. Cox,
R. Neri,
A. Beelen,
R. S. Bussmann,
R. Gavazzi,
P. van der Werf,
D. Riechers,
D. Downes,
M. Krips,
S. Dye,
R. Ivison,
J. D. Vieira,
A. Weiß
and other authors.
Abstract
Using the IRAM Plateau de Bure interferometer (PdBI), we report the detection of water vapor in six new lensed ultra-luminous starburst galaxies at high redshift, discovered in the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). The sources are detected either in the 2(02)-1(11) or 2(11)-2(02) H2O emission lines with integrated line fluxes ranging from 1.8 to 14 Jy km s(-1). The corresponding apparent luminosities are mu L-H2O similar to 3-12 x 10(8) L-circle dot, where mu is the lensing magnification factor (3 100 mJy) discovered in the Herschel surveys. Correcting the luminosities for amplification, using existing lensing models, L-H2O is found to have a strong dependence on the infrared luminosity, varying as similar to L-IR(1.2). This relation, which needs to be confirmed with better statistics, may indicate a role of radiative (infrared) excitation of the H2O lines, and implies that high-z galaxies with L-IR greater than or similar to 10(13) L-circle dot tend to be very strong emitters in water vapor, that have no equivalent in the local universe.