PMO OpenIR  > 星系中的恒星形成研究团组
Black hole accretion and star formation as drivers of gas excitation and chemistry in Markarian 231
van der Werf, P. P.1; Isaak, K. G.2,3; Meijerink, R.1; Spaans, M.4; Rykala, A.2; Fulton, T.5; Loenen, A. F.1; Walter, F.6; Weiss, A.7; Armus, L.8; Fischer, J.9; Israel, F. P.1; Harris, A. I.10; Veilleux, S.10; Henkel, C.7; Savini, G.11; Lord, S.12; Smith, H. A.13; Gonzalez-Alfonso, E.14; Naylor, D.15; Aalto, S.16; Charmandaris, V.17; Dasyra, K. M.18; Evans, A.19,20; Gao, Y.21; Greve, T. R.6,22; Guesten, R.7; Kramer, C.23; Martin-Pintado, J.24; Mazzarella, J.12; Papadopoulos, P. P.25; Sanders, D. B.26; Spinoglio, L.27; Stacey, G.28; Vlahakis, C.1; Wiedner, M. C.29; Xilouris, E. M.30
2010-07-01
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume518Pages:L42
AbstractWe 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 H(2)O, 3 of OH(+) and one line each of H(2)O(+), 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 H(2)O(+) lines reveals the signature of X-ray driven excitation and chemistry in this region.
KeywordGalaxies: Individual: Mrk 231 Galaxies: Active Galaxies: Ism Galaxies: Nuclei Galaxies: Starburst Infrared: Galaxies
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1051/0004-6361/201014682
WOS KeywordGALAXY NUCLEI ; DENSE GAS ; DIAGNOSTICS ; EMISSION ; LINES ; CO
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000281527200043
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/1125
Collection星系中的恒星形成研究团组
Affiliation1.Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands
2.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
3.Estec, ESA Astrophys Missions Div, NL-2200 AG Noordwijk, Netherlands
4.Univ Groningen, Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands
5.Blue Sky Spect, Lethbridge, AB, Canada
6.Max Planck Inst Astron, D-69117 Heidelberg, Germany
7.Max Planck Inst Radioastron, D-53121 Bonn, Germany
8.CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA
9.USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA
10.Univ Maryland, Dept Astron, College Pk, MD 20742 USA
11.UCL, Dept Phys & Astron, London WC1E 6BT, England
12.CALTECH, Ctr Infrared Proc & Anal, Pasadena, CA 91125 USA
13.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
14.Univ Alcala de Henares, Dept Fis, Madrid 28871, Spain
15.Univ Lethbridge, Dept Phys, Lethbridge, AB T1J 1B1, Canada
16.Chalmers, Onsala Observ, Dept Radio & Space Sci, S-43992 Onsala, Sweden
17.Univ Crete, Dept Phys, Iraklion 71003, Greece
18.CEA Saclay, Serv Astrophys, F-91191 Gif Sur Yvette, France
19.Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA
20.Natl Radio Astron Observ, Charlottesville, VA 22903 USA
21.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
22.Univ Copenhagen, Dark Cosmol Ctr, Niels Bohr Inst, DK-2100 Copenhagen, Denmark
23.IRAM, E-18012 Granada, Spain
24.CSIC, Dept Astrofis Mol & Infrarroja, Inst Estruct Mat, E-28006 Madrid, Spain
25.Argelander Inst Astron, D-53121 Bonn, Germany
26.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
27.CNR, Ist Fis Spazio Interplanetario, I-00133 Rome, Italy
28.Cornell Univ, Dept Astron, Ithaca, NY 14853 USA
29.LERMA, Observ Paris, F-75014 Paris, France
30.Natl Observ Athens, Inst Astron & Astrophys, Athens 15236, Greece
Recommended Citation
GB/T 7714
van der Werf, P. P.,Isaak, K. G.,Meijerink, R.,et al. Black hole accretion and star formation as drivers of gas excitation and chemistry in Markarian 231[J]. ASTRONOMY & ASTROPHYSICS,2010,518:L42.
APA van der Werf, P. P..,Isaak, K. G..,Meijerink, R..,Spaans, M..,Rykala, A..,...&Xilouris, E. M..(2010).Black hole accretion and star formation as drivers of gas excitation and chemistry in Markarian 231.ASTRONOMY & ASTROPHYSICS,518,L42.
MLA van der Werf, P. P.,et al."Black hole accretion and star formation as drivers of gas excitation and chemistry in Markarian 231".ASTRONOMY & ASTROPHYSICS 518(2010):L42.
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