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

P. Panuzzo; N. Rangwala; A. Rykala; K. G. Isaak; J. Glenn; C. D. Wilson; R. Auld; M. Baes; M. J. Barlow; G. J. Bendo; J. J. Bock; A. Boselli; M. Bradford; V. Buat; N. Castro-Rodríguez; P. Chanial; S. Charlot; L. Ciesla; D. L. Clements; A. Cooray; D. Cormier; L. Cortese; J. I. Davies; E. Dwek; S. A. Eales; D. Elbaz; T. Fulton; M. Galametz; F. Galliano; W. K. Gear; H. L. Gomez; M. Griffin; S. Hony; L. R. Levenson; N. Lu; S. Madden; B. O'Halloran; K. Okumura; S. Oliver; M. J. Page; A. Papageorgiou; T. J. Parkin; I. Pérez-Fournon; M. Pohlen; E. T. Polehampton; E. E. Rigby; H. Roussel; N. Sacchi; M. Sauvage; B. Schulz; M. R. P. Schirm; M. W. L. Smith; L. Spinoglio; Jason Stevens; S. Srinivasan; M. Symeonidis; B. Swinyard; M. Trichas; M. Vaccari; L. Vigroux; H. Wozniak; G. S. Wright; W. W. Zeilinger

doi:10.1051/0004-6361/201014558

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

P. Panuzzo, N. Rangwala, A. Rykala, K. G. Isaak, J. Glenn, C. D. Wilson, R. Auld, M. Baes, M. J. Barlow, G. J. Bendo, J. J. Bock, A. Boselli, M. Bradford, V. Buat, N. Castro-Rodríguez, P. Chanial, S. Charlot, L. Ciesla, D. L. Clements, A. CoorayD. Cormier, L. Cortese, J. I. Davies, E. Dwek, S. A. Eales, D. Elbaz, T. Fulton, M. Galametz, F. Galliano, W. K. Gear, H. L. Gomez, M. Griffin, S. Hony, L. R. Levenson, N. Lu, S. Madden, B. O'Halloran, K. Okumura, S. Oliver, M. J. Page, A. Papageorgiou, T. J. Parkin, I. Pérez-Fournon, M. Pohlen, E. T. Polehampton, E. E. Rigby, H. Roussel, N. Sacchi, M. Sauvage, B. Schulz, M. R. P. Schirm, M. W. L. Smith, L. Spinoglio, Jason Stevens, S. Srinivasan, M. Symeonidis, B. Swinyard, M. Trichas, M. Vaccari, L. Vigroux, H. Wozniak, G. S. Wright, W. W. Zeilinger

Centre for Astrophysics Research (CAR)

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Abstract

We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194–671 μm) 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 ¹²CO and ¹³CO lines strongly indicates a very warm molecular gas component at ~500 K and pressure of ~3×10⁶ K cm-³, in good agreement with the H2 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.

Original language	English
Article number	L37
Number of pages	5
Journal	Astronomy and Astrophysics
Volume	518
DOIs	https://doi.org/10.1051/0004-6361/201014558
Publication status	Published - 1 Jul 2010

Keywords

galaxies: ISM, galaxies: starburst, galaxies: individual: M82, ISM: molecules, submillimeter: galaxies

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Panuzzo, P., Rangwala, N., Rykala, A., Isaak, K. G., Glenn, J., Wilson, C. D., Auld, R., Baes, M., Barlow, M. J., Bendo, G. J., Bock, J. J., Boselli, A., Bradford, M., Buat, V., Castro-Rodríguez, N., Chanial, P., Charlot, S., Ciesla, L., Clements, D. L., ... Zeilinger, W. W. (2010). Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy. Astronomy and Astrophysics, 518, Article L37. https://doi.org/10.1051/0004-6361/201014558

@article{4f4369bac9e6478ea011bf96b6783e25,

title = "Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy",

abstract = "We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194–671 μm) 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 12CO and 13CO lines strongly indicates a very warm molecular gas component at ~500 K and pressure of ~3×106 K cm-3, in good agreement with the H2 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.",

keywords = "galaxies: ISM, galaxies: starburst, galaxies: individual: M82, ISM: molecules, submillimeter: galaxies",

author = "P. Panuzzo and N. Rangwala and A. Rykala and Isaak, {K. G.} and J. Glenn and Wilson, {C. D.} and R. Auld and M. Baes and Barlow, {M. J.} and Bendo, {G. J.} and Bock, {J. J.} and A. Boselli and M. Bradford and V. Buat and N. Castro-Rodr{\'i}guez and P. Chanial and S. Charlot and L. Ciesla and Clements, {D. L.} and A. Cooray and D. Cormier and L. Cortese and Davies, {J. I.} and E. Dwek and Eales, {S. A.} and D. Elbaz and T. Fulton and M. Galametz and F. Galliano and Gear, {W. K.} and Gomez, {H. L.} and M. Griffin and S. Hony and Levenson, {L. R.} and N. Lu and S. Madden and B. O'Halloran and K. Okumura and S. Oliver and Page, {M. J.} and A. Papageorgiou and Parkin, {T. J.} and I. P{\'e}rez-Fournon and M. Pohlen and Polehampton, {E. T.} and Rigby, {E. E.} and H. Roussel and N. Sacchi and M. Sauvage and B. Schulz and Schirm, {M. R. P.} and Smith, {M. W. L.} and L. Spinoglio and Jason Stevens and S. Srinivasan and M. Symeonidis and B. Swinyard and M. Trichas and M. Vaccari and L. Vigroux and H. Wozniak and Wright, {G. S.} and Zeilinger, {W. W.}",

year = "2010",

month = jul,

day = "1",

doi = "10.1051/0004-6361/201014558",

language = "English",

volume = "518",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Panuzzo, P, Rangwala, N, Rykala, A, Isaak, KG, Glenn, J, Wilson, CD, Auld, R, Baes, M, Barlow, MJ, Bendo, GJ, Bock, JJ, Boselli, A, Bradford, M, Buat, V, Castro-Rodríguez, N, Chanial, P, Charlot, S, Ciesla, L, Clements, DL, Cooray, A, Cormier, D, Cortese, L, Davies, JI, Dwek, E, Eales, SA, Elbaz, D, Fulton, T, Galametz, M, Galliano, F, Gear, WK, Gomez, HL, Griffin, M, Hony, S, Levenson, LR, Lu, N, Madden, S, O'Halloran, B, Okumura, K, Oliver, S, Page, MJ, Papageorgiou, A, Parkin, TJ, Pérez-Fournon, I, Pohlen, M, Polehampton, ET, Rigby, EE, Roussel, H, Sacchi, N, Sauvage, M, Schulz, B, Schirm, MRP, Smith, MWL, Spinoglio, L, Stevens, J, Srinivasan, S, Symeonidis, M, Swinyard, B, Trichas, M, Vaccari, M, Vigroux, L, Wozniak, H, Wright, GS & Zeilinger, WW 2010, 'Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy', Astronomy and Astrophysics, vol. 518, L37. https://doi.org/10.1051/0004-6361/201014558

TY - JOUR

T1 - Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy

AU - Panuzzo, P.

AU - Rangwala, N.

AU - Rykala, A.

AU - Isaak, K. G.

AU - Glenn, J.

AU - Wilson, C. D.

AU - Auld, R.

AU - Baes, M.

AU - Barlow, M. J.

AU - Bendo, G. J.

AU - Bock, J. J.

AU - Boselli, A.

AU - Bradford, M.

AU - Buat, V.

AU - Castro-Rodríguez, N.

AU - Chanial, P.

AU - Charlot, S.

AU - Ciesla, L.

AU - Clements, D. L.

AU - Cooray, A.

AU - Cormier, D.

AU - Cortese, L.

AU - Davies, J. I.

AU - Dwek, E.

AU - Eales, S. A.

AU - Elbaz, D.

AU - Fulton, T.

AU - Galametz, M.

AU - Galliano, F.

AU - Gear, W. K.

AU - Gomez, H. L.

AU - Griffin, M.

AU - Hony, S.

AU - Levenson, L. R.

AU - Lu, N.

AU - Madden, S.

AU - O'Halloran, B.

AU - Okumura, K.

AU - Oliver, S.

AU - Page, M. J.

AU - Papageorgiou, A.

AU - Parkin, T. J.

AU - Pérez-Fournon, I.

AU - Pohlen, M.

AU - Polehampton, E. T.

AU - Rigby, E. E.

AU - Roussel, H.

AU - Sacchi, N.

AU - Sauvage, M.

AU - Schulz, B.

AU - Schirm, M. R. P.

AU - Smith, M. W. L.

AU - Spinoglio, L.

AU - Stevens, Jason

AU - Srinivasan, S.

AU - Symeonidis, M.

AU - Swinyard, B.

AU - Trichas, M.

AU - Vaccari, M.

AU - Vigroux, L.

AU - Wozniak, H.

AU - Wright, G. S.

AU - Zeilinger, W. W.

PY - 2010/7/1

Y1 - 2010/7/1

N2 - We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194–671 μm) 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 12CO and 13CO lines strongly indicates a very warm molecular gas component at ~500 K and pressure of ~3×106 K cm-3, in good agreement with the H2 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.

AB - We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194–671 μm) 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 12CO and 13CO lines strongly indicates a very warm molecular gas component at ~500 K and pressure of ~3×106 K cm-3, in good agreement with the H2 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.

KW - galaxies: ISM, galaxies: starburst, galaxies: individual: M82, ISM: molecules, submillimeter: galaxies

U2 - 10.1051/0004-6361/201014558

DO - 10.1051/0004-6361/201014558

M3 - Article

SN - 0004-6361

VL - 518

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - L37

ER -

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

Abstract

Keywords

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