Sökning: WFRF:(Henkel F) > Probing highly obsc...
Fältnamn | Indikatorer | Metadata |
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000 | 05199naa a2200589 4500 | |
001 | oai:research.chalmers.se:d4f94359-0d10-4d49-81df-1ccff45408c6 | |
003 | SwePub | |
008 | 171007s2015 | |||||||||||000 ||eng| | |
024 | 7 | a https://doi.org/10.1051/0004-6361/2015264102 DOI |
024 | 7 | a https://research.chalmers.se/publication/2310552 URI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Aalto, Susanne,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)saalto |
245 | 1 0 | a Probing highly obscured, self-absorbed galaxy nuclei with vibrationally excited HCN |
264 | c 2015-11-18 | |
264 | 1 | b EDP Sciences,c 2015 |
338 | a electronic2 rdacarrier | |
520 | a We present high resolution (0.'' 4) IRAM PdBI and ALMA mm and submm observations of the (ultra) luminous infrared galaxies ((U)LIRGs) IRAS 17208-0014, Arp220, IC 860 and Zw049.057 that reveal intense line emission from vibrationally excited (nu(2) = 1) J = 3-2 and 4-3 HCN. The emission is emerging from buried, compact (r 5 x 10(13) L-circle dot kpc(-2). These nuclei are likely powered by accreting supermassive black holes (SMBHs) and/or hot (>200 K) extreme starbursts. Vibrational, nu(2) = 1, lines of HCN are excited by intense 14 mu m mid-infrared emission and are excellent probes of the dynamics, masses, and physical conditions of (U)LIRG nuclei when H-2 column densities exceed 10(24) cm(-2). It is clear that these lines open up a new interesting avenue to gain access to the most obscured AGNs and starbursts. Vibrationally excited HCN acts as a proxy for the absorbed mid-infrared emission from the embedded nuclei, which allows for reconstruction of the intrinsic, hotter dust SED. In contrast, we show strong evidence that the ground vibrational state (. = 0), J = 3-2 and 4-3 rotational lines of HCN and HCO+ fail to probe the highly enshrouded, compact nuclear regions owing to strong self-and continuum absorption. The HCN and HCO+ line profiles are double-peaked because of the absorption and show evidence of non-circular motions-possibly in the form of in-or outflows. Detections of vibrationally excited HCN in external galaxies are so far limited to ULIRGs and early-type spiral LIRGs, and we discuss possible causes for this. We tentatively suggest that the peak of vibrationally excited HCN emission is connected to a rapid stage of nuclear growth, before the phase of strong feedback. | |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
653 | a galaxies: evolution | |
653 | a galaxies: nuclei | |
653 | a galaxies: active | |
653 | a galaxies | |
700 | 1 | a Martin, S.u Institut de Radioastronomie Millimétrique (IRAM)4 aut |
700 | 1 | a Costagliola, Francesco,d 1981u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)costagli |
700 | 1 | a Gonzalez-Alfonso, E.u Universidad de Alcala,University of Alcalá4 aut |
700 | 1 | a Muller, Sebastien,d 1976u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)mullers |
700 | 1 | a Sakamoto, K.u Academia Sinica Taiwan4 aut |
700 | 1 | a Fuller, G. A.u University of Manchester4 aut |
700 | 1 | a Burillo, S. G.u Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)4 aut |
700 | 1 | a van der Werf, P.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
700 | 1 | a Neri, R.u Institut de Radioastronomie Millimétrique (IRAM)4 aut |
700 | 1 | a Spaans, M.u Rijksuniversiteit Groningen,University of Groningen4 aut |
700 | 1 | a Combes, F.u LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France4 aut |
700 | 1 | a Viti, S.u University College London (UCL)4 aut |
700 | 1 | a Muhle, S.4 aut |
700 | 1 | a Armus, L.u California Institute of Technology (Caltech)4 aut |
700 | 1 | a Evans, A.u National Radio Astronomy Observatory,University of Virginia4 aut |
700 | 1 | 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 |
700 | 1 | a Cernicharo, J.u CSIC - Instituto de Ciencia de Materiales de Madrid (ICMM)4 aut |
700 | 1 | a Henkel, C.u King Abdulaziz University,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Greve, T. R.u University College London (UCL)4 aut |
710 | 2 | a Chalmers tekniska högskolab Institut de Radioastronomie Millimétrique (IRAM)4 org |
773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 584q 584x 0004-6361x 1432-0746 |
856 | 4 | u http://publications.lib.chalmers.se/records/fulltext/231055/local_231055.pdfx primaryx freey FULLTEXT |
856 | 4 | u https://www.aanda.org/articles/aa/pdf/2015/12/aa26410-15.pdf |
856 | 4 8 | u https://doi.org/10.1051/0004-6361/201526410 |
856 | 4 8 | u https://research.chalmers.se/publication/231055 |
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