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Black hole accretio...
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van der Werf, P.P.Universiteit Leiden (UL),Leiden University (UL)
(author)
Black hole accretion and star formation as drivers of gas excitation and chemistry in Markarian 231
- Article/chapterEnglish2010
Publisher, publication year, extent ...
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2010-07-16
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EDP Sciences,2010
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:1901905b-7235-4ca4-ba7a-3bd6b64d9ae4
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https://doi.org/10.1051/0004-6361/201014682DOI
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https://research.chalmers.se/publication/129975URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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We present a full high resolution SPIRE FTS spectrum of the nearby ultraluminous infrared galaxy Mrk 231. In total 25 lines are detected, including CO J = 5-4 through J = 13-12, 7 rotational lines of H2O, 3 of OH+ and one line each of H2O+, CH+, and HF. We find that the excitation of the CO rotational levels up to J = 8 can be accounted for by UV radiation from star formation. However, the approximately flat luminosity distribution of the CO lines over the rotational ladder above J = 8 requires the presence of a separate source of excitation for the highest CO lines. We explore X-ray heating by the accreting supermassive black hole in Mrk 231 as a source of excitation for these lines, and find that it can reproduce the observed luminosities. We also consider a model with dense gas in a strong UV radiation field to produce the highest CO lines, but find that this model strongly overpredicts the hot dust mass in Mrk 231. Our favoured model consists of a star forming disk of radius 560 pc, containing clumps of dense gas exposed to strong UV radiation, dominating the emission of CO lines up to J = 8. X-rays from the accreting supermassive black hole in Mrk 231 dominate the excitation and chemistry of the inner disk out to a radius of 160 pc, consistent with the X-ray power of the AGN in Mrk 231. The extraordinary luminosity of the OH+ and H2O+ lines reveals the signature of X-ray driven excitation and chemistry in this region.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Isaak, K.Cardiff University,European Space Research and Technology Centre (ESA ESTEC)
(author)
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Meijerink, R.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Spaans, M.Rijksuniversiteit Groningen,University of Groningen
(author)
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Rykala, A.Cardiff University
(author)
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Fulton, T.
(author)
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Loenen, A. F.Universiteit Leiden (UL),Leiden University (UL)
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Walter, F.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Weiss, A.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Armus, L.Spitzer Science Center, United States
(author)
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Fischer, J.Naval Research Laboratory
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Israel, F. P.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Harris, A. I.University of Maryland
(author)
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Veilleux, S.University of Maryland
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Henkel, C.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Savini, G.University College London (UCL)
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Lord, S.California Institute of Technology (Caltech)
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Smith, H. A.Harvard-Smithsonian Center for Astrophysics
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Gonzalez-Alfonso, E.Universidad de Alcala,University of Alcalá
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Naylor, D. A.University of Lethbridge
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Aalto, Susanne,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)saalto
(author)
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Charmandaris, V.Panepistimio Kritis,University of Crete
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Dasyra, K. M.Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA),The French Alternative Energies and Atomic Energy Commission (CEA)
(author)
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Evans, A.University of Virginia,National Radio Astronomy Observatory
(author)
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Gao, Y.Chinese Academy of Sciences
(author)
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Greve, T. R.Niels Bohr Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Güsten, R.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Kramer, C.Institut de Radioastronomie Millimétrique (IRAM)
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Martin-Pintado, J.CSIC - Instituto de Estructura de la Materia (IEM)
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Mazzarella, J.California Institute of Technology (Caltech)
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Papadopoulos, P. P.
(author)
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Sanders, D. B.University of Hawaii
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Spinoglio, L.Consiglo Nazionale Delle Richerche
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Stacey, G.Cornell University
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Vlahakis, C.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Wiedner, M. C.LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
(author)
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Xilouris, E. M.National Observatory of Athens
(author)
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Universiteit Leiden (UL)Cardiff University
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In:Astronomy and Astrophysics: EDP Sciences518:Article Number: L420004-63611432-0746
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van der Werf, P. ...
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Isaak, K.
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Meijerink, R.
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Spaans, M.
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Rykala, A.
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Fulton, T.
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Loenen, A. F.
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Walter, F.
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Weiss, A.
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Armus, L.
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Fischer, J.
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Israel, F. P.
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Harris, A. I.
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Veilleux, S.
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Henkel, C.
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Savini, G.
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Lord, S.
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Smith, H. A.
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Gonzalez-Alfonso ...
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Naylor, D. A.
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Aalto, Susanne, ...
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Charmandaris, V.
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Dasyra, K. M.
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Evans, A.
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Gao, Y.
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Greve, T. R.
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Güsten, R.
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Kramer, C.
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Martin-Pintado, ...
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Mazzarella, J.
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Papadopoulos, P. ...
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Sanders, D. B.
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Spinoglio, L.
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Stacey, G.
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Vlahakis, C.
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Wiedner, M. C.
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Xilouris, E. M.
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