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Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy

P Panuzzo, N Rangwala, A Rykala, KG Isaak, J Glenn, CD Wilson, R Auld, Maarten Baes UGent, MJ Barlow and GJ Bendo, et al. (2010) ASTRONOMY & ASTROPHYSICS. 518.
abstract
We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194-671 mu m) shows a prominent CO rotational ladder from J = 4-3 to 13-12 emitted by the central region of M82. The fundamental properties of the gas are well constrained by the high J lines observed for the first time. Radiative transfer modeling of these high-S/N (CO)-C-12 and (CO)-C-13 lines strongly indicates a very warm molecular gas component at similar to 500 K and pressure of similar to 3 x 10(6) K cm(-3), in good agreement with the H-2 rotational lines measurements from Spitzer and ISO. We suggest that this warm gas is heated by dissipation of turbulence in the interstellar medium (ISM) rather than X-rays or UV flux from the straburst. This paper illustrates the promise of the SPIRE FTS for the study of the ISM of nearby galaxies.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
galaxies: individual: M82, ISM: molecules, galaxies: starburst, galaxies: ISM, submillimeter: galaxies, STARBURST GALAXY M82, THERMAL BALANCE, CLOUDS, GAS, EMISSION, LINE, TEMPERATURE, CO, TURBULENCE, NUCLEUS
journal title
ASTRONOMY & ASTROPHYSICS
Astron. Astrophys.
volume
518
article_number
L37
pages
5 pages
Web of Science type
Article
Web of Science id
000281527200038
JCR category
ASTRONOMY & ASTROPHYSICS
JCR impact factor
4.41 (2010)
JCR rank
10/54 (2010)
JCR quartile
1 (2010)
ISSN
0004-6361
DOI
10.1051/0004-6361/201014558
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1236352
handle
http://hdl.handle.net/1854/LU-1236352
date created
2011-05-25 11:24:22
date last changed
2011-06-06 16:05:38
@article{1236352,
  abstract     = {We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194-671 mu m) shows a prominent CO rotational ladder from J = 4-3 to 13-12 emitted by the central region of M82. The fundamental properties of the gas are well constrained by the high J lines observed for the first time. Radiative transfer modeling of these high-S/N (CO)-C-12 and (CO)-C-13 lines strongly indicates a very warm molecular gas component at similar to 500 K and pressure of similar to 3 x 10(6) K cm(-3), in good agreement with the H-2 rotational lines measurements from Spitzer and ISO. We suggest that this warm gas is heated by dissipation of turbulence in the interstellar medium (ISM) rather than X-rays or UV flux from the straburst. This paper illustrates the promise of the SPIRE FTS for the study of the ISM of nearby galaxies.},
  articleno    = {L37},
  author       = {Panuzzo, P and Rangwala, N and Rykala, A and Isaak, KG and Glenn, J and Wilson, CD and Auld, R and Baes, Maarten and Barlow, MJ and Bendo, GJ and Bock, JJ and Boselli, A and Bradford, M and Buat, V and Castro-Rodriguez, N and Chanial, P and Charlot, S and Ciesla, L and Clements, DL and Cooray, A and Cormier, D and Cortese, L and Davies, JI and Dwek, E and Eales, SA and Elbaz, D and Fulton, T and Galametz, M and Galliano, F and Gear, WK and Gomez, HL and Griffin, M and Hony, S and Levenson, LR and Lu, N and Madden, S and O'Halloran, B and Okumura, K and Oliver, S and Page, MJ and Papageorgiou, A and Parkin, TJ and Perez-Fournon, I and Pohlen, M and Polehampton, ET and Rigby, EE and Roussel, H and Sacchi, N and Sauvage, M and Schulz, B and Schirm, MRP and Smith, MWL and Spinoglio, L and Stevens, JA and Srinivasan, S and Symeonidis, M and Swinyard, B and Trichas, M and Vaccari, M and Vigroux, L and Wozniak, H and Wright, GS and Zeilinger, WW},
  issn         = {0004-6361},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  keyword      = {galaxies: individual: M82,ISM: molecules,galaxies: starburst,galaxies: ISM,submillimeter: galaxies,STARBURST GALAXY M82,THERMAL BALANCE,CLOUDS,GAS,EMISSION,LINE,TEMPERATURE,CO,TURBULENCE,NUCLEUS},
  language     = {eng},
  pages        = {5},
  title        = {Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy},
  url          = {http://dx.doi.org/10.1051/0004-6361/201014558},
  volume       = {518},
  year         = {2010},
}

Chicago
Panuzzo, P, N Rangwala, A Rykala, KG Isaak, J Glenn, CD Wilson, R Auld, et al. 2010. “Probing the Molecular Interstellar Medium of M82 with Herschel-SPIRE Spectroscopy.” Astronomy & Astrophysics 518.
APA
Panuzzo, P., Rangwala, N., Rykala, A., Isaak, K., Glenn, J., Wilson, C., Auld, R., et al. (2010). Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy. ASTRONOMY & ASTROPHYSICS, 518.
Vancouver
1.
Panuzzo P, Rangwala N, Rykala A, Isaak K, Glenn J, Wilson C, et al. Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy. ASTRONOMY & ASTROPHYSICS. 2010;518.
MLA
Panuzzo, P, N Rangwala, A Rykala, et al. “Probing the Molecular Interstellar Medium of M82 with Herschel-SPIRE Spectroscopy.” ASTRONOMY & ASTROPHYSICS 518 (2010): n. pag. Print.