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Sökning: onr:"swepub:oai:research.chalmers.se:6384015e-4d0c-46f9-a5fc-b83d7febeb23" > HIGH-LYING OH ABSOR...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005756naa a2200601 4500
001oai:research.chalmers.se:6384015e-4d0c-46f9-a5fc-b83d7febeb23
003SwePub
008171007s2015 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/2138392 URI
0247 a https://doi.org/10.1088/0004-637X/800/1/692 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Gonzalez-Alfonso, E.u Universidad de Alcala,University of Alcalá4 aut
2451 0a HIGH-LYING OH ABSORPTION, [C II] DEFICITS, AND EXTREME LFIR/MH2 RATIOS IN GALAXIES
264 1c 2015
338 a electronic2 rdacarrier
520 a Herschel/PACS observations of 29 local (ultra) luminous infrared galaxies, including both starburst and active galactic nucleus (AGN) dominated sources as diagnosed in the mid-infrared/optical, show that the equivalent width of the absorbing OH 65 mu m.3/2 J = 9/2-7/2 line (Weq(OH65)) with lower level energy Elow 300 K, is anticorrelated with the [Cii] 158 mu m line to far-infrared luminosity ratio, and correlated with the far-infrared luminosity per unit gas mass and with the 60-to-100 mu m far-infrared color. While all sources are in the active LIR/MH2 > 50L /M mode as derived from previous CO line studies, the OH65 absorption shows a bimodal distribution with a discontinuity at LFIR/MH2 100L /M . In the most buried sources, OH65 probes material partially responsible for the silicate 9.7 mu m absorption. Combined with observations of the OH 71 mu m.1/2 J = 7/2-5/2 doublet (Elow 415 K), radiative transfer models characterized by the equivalent dust temperature, Tdust, and the continuum optical depth at 100 mu m, t100, indicate that strong [C ii] 158 mu m deficits are associated with far-IR thick (t100 0.7, NH 1024 cm-2), warm (Tdust 60 K) structures where the OH 65 mu m absorption is produced, most likely in circumnuclear disks/tori/cocoons. With their high LFIR/MH2 ratios and columns, the presence of these structures is expected to give rise to strong [C ii] deficits. Weq(OH65) probes the fraction of infrared luminosity arising from these compact/warm environments, which is 30%-50% in sources with high Weq(OH65). Sources with high Weq(OH65) have surface densities of both LIR and MH2 higher than inferred from the half-light (CO or UV/optical) radius, tracing coherent structures that represent the most buried/active stage of (circum) nuclear starburst-AGN co-evolution.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a galaxies evolution
653 a star-formation
7001 a Fischer, J.u Naval Research Laboratory4 aut
7001 a Sturm, E.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Gracia-Carpio, J.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Veilleux, S.u University of Maryland4 aut
7001 a Melendez, M.u University of Maryland4 aut
7001 a Lutz, D.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Poglitsch, A.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Aalto, Susanne,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)saalto
7001 a Falstad, Niklas,d 1987u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)falstad
7001 a Spoon, H. W. W.u Cornell University4 aut
7001 a Farrah, D.u Virginia Polytechnic Institute and State University (Virginia Tech)4 aut
7001 a Blasco, A.u Universidad de Alcala,University of Alcalá4 aut
7001 a Henkel, C.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),King Abdulaziz University4 aut
7001 a Contursi, A.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Verma, A.u University Of Oxford4 aut
7001 a Spaans, M.u Rijksuniversiteit Groningen,University of Groningen4 aut
7001 a Smith, H. A.u Harvard-Smithsonian Center for Astrophysics4 aut
7001 a Ashby, M. L. N.u Harvard-Smithsonian Center for Astrophysics4 aut
7001 a Hailey-Dunsheath, S.u California Institute of Technology (Caltech)4 aut
7001 a Burillo, S. G.u Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)4 aut
7001 a Martin-Pintado, J.u Centro de Astrobiologia (CAB)4 aut
7001 a van der Werf, P.u Universiteit Leiden (UL),Leiden University (UL)4 aut
7001 a Meijerink, R.u Universiteit Leiden (UL),Leiden University (UL)4 aut
7001 a Genzel, R.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7102 a Universidad de Alcalab Naval Research Laboratory4 org
7730 t Astrophysical Journalg 800:1, s. 1-10q 800:1<1-10x 1538-4357x 0004-637X
8564 u http://publications.lib.chalmers.se/records/fulltext/213839/local_213839.pdfx primaryx freey FULLTEXT
8564 8u https://research.chalmers.se/publication/213839
8564 8u https://doi.org/10.1088/0004-637X/800/1/69

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