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H2O emission in high-z ultra-luminous infrared galaxies
Omont.A., Yang.C., Cox.P., Neri.R., Beelen.A., Bussmann.R.S., Gavazzi.R., Van Der Werf.P., Riechers.D., Downes.D., Krips.M., Dye.S., Ivison.R., Vieira.J.D., Aguirre.J.E., Baes.M., Baker.A.J., Bertoldi.F., Cooray.A., Dannerbauer.H., De Zotti.G., Eales.S.A., Fu.H., Gao.Y., Guelin.M., Harris.A.I., Jarvis.M., Lehnert.M., Leeuw.L., Lupu.R., Menten.K., Negrello.M., Serjeant.S., Temi.P., Auld.R., Dariush.A., Dunne.L., Fritz.J., Hopwood.R., Bock.J., Bradford.C.M., Glenn.J., Hoyos.C., Ibar.E., Maddox.S., Michalowski.M.J., Scott.K.S., Smith.M.W.L., Valiante.E., Weiss.A.
2013
Source PublicationAstronomy & Astrophysics
ISSN0004-6361
Volume551Pages:A115
Corresponding AuthorOmont, A (reprint author), Univ Paris 06, Inst Astrophys Paris, UMR7095, F-75014 Paris, France. Email: omont@iap.fr
AbstractUsing 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 < mu < 12). These results confirm that H2O lines are among the strongest molecular lines in high-z ultra-luminous starburst galaxies, with intensities almost comparable to those of the high-J CO lines, and similar profiles and line widths (similar to 200-900 km s(-1)). With the current sensitivity of the PdBI, the water lines can therefore easily be detected in high-z lensed galaxies (with F(500 mu m) > 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.
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9794
Collection暗物质和空间天文实验室
Recommended Citation
GB/T 7714
Omont.A., Yang.C., Cox.P., Neri.R., Beelen.A., Bussmann.R.S., Gavazzi.R., Van Der Werf.P., Riechers.D., Downes.D., Krips.M., Dye.S., Ivison.R., Vieira.J.D., Aguirre.J.E., Baes.M., Baker.A.J., Bertoldi.F., Cooray.A., Dannerbauer.H., De Zotti.G., Eales.S.A., Fu.H., Gao.Y., Guelin.M., Harris.A.I., Jarvis.M., Lehnert.M., Leeuw.L., Lupu.R., Menten.K., Negrello.M., Serjeant.S., Temi.P., Auld.R., Dariush.A., Dunne.L., Fritz.J., Hopwood.R., Bock.J., Bradford.C.M., Glenn.J., Hoyos.C., Ibar.E., Maddox.S., Michalowski.M.J., Scott.K.S., Smith.M.W.L., Valiante.E., Weiss.A.. H2O emission in high-z ultra-luminous infrared galaxies[J]. Astronomy & Astrophysics,2013,551:A115.
APA Omont.A., Yang.C., Cox.P., Neri.R., Beelen.A., Bussmann.R.S., Gavazzi.R., Van Der Werf.P., Riechers.D., Downes.D., Krips.M., Dye.S., Ivison.R., Vieira.J.D., Aguirre.J.E., Baes.M., Baker.A.J., Bertoldi.F., Cooray.A., Dannerbauer.H., De Zotti.G., Eales.S.A., Fu.H., Gao.Y., Guelin.M., Harris.A.I., Jarvis.M., Lehnert.M., Leeuw.L., Lupu.R., Menten.K., Negrello.M., Serjeant.S., Temi.P., Auld.R., Dariush.A., Dunne.L., Fritz.J., Hopwood.R., Bock.J., Bradford.C.M., Glenn.J., Hoyos.C., Ibar.E., Maddox.S., Michalowski.M.J., Scott.K.S., Smith.M.W.L., Valiante.E., Weiss.A..(2013).H2O emission in high-z ultra-luminous infrared galaxies.Astronomy & Astrophysics,551,A115.
MLA Omont.A., Yang.C., Cox.P., Neri.R., Beelen.A., Bussmann.R.S., Gavazzi.R., Van Der Werf.P., Riechers.D., Downes.D., Krips.M., Dye.S., Ivison.R., Vieira.J.D., Aguirre.J.E., Baes.M., Baker.A.J., Bertoldi.F., Cooray.A., Dannerbauer.H., De Zotti.G., Eales.S.A., Fu.H., Gao.Y., Guelin.M., Harris.A.I., Jarvis.M., Lehnert.M., Leeuw.L., Lupu.R., Menten.K., Negrello.M., Serjeant.S., Temi.P., Auld.R., Dariush.A., Dunne.L., Fritz.J., Hopwood.R., Bock.J., Bradford.C.M., Glenn.J., Hoyos.C., Ibar.E., Maddox.S., Michalowski.M.J., Scott.K.S., Smith.M.W.L., Valiante.E., Weiss.A.."H2O emission in high-z ultra-luminous infrared galaxies".Astronomy & Astrophysics 551(2013):A115.
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