Mapping the interstellar medium in galaxies with Herschel*/SPIRE

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

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    Abstract

    The standard method of mapping the interstellar medium in a galaxy, by observing the molecular gas in the CO 1-0 line and the atomic gas in the 21-cm line, is largely limited with current telescopes to galaxies in the nearby universe. In this letter, we use SPIRE observations of the galaxies M 99 and M 100 to explore the alternative approach of mapping the interstellar medium using the continuum emission from the dust. We have compared the methods by measuring the relationship between the star-formation rate and the surface density of gas in the galaxies using both methods. We find the two methods give relationships with a similar dispersion, confirming that observing the continuum emission from the dust is a promising method of mapping the interstellar medium in galaxies. © ESO 2010.
    Original languageEnglish
    Pages (from-to)5
    JournalAstronomy and Astrophysics
    Volume518
    Issue number4
    DOIs
    Publication statusPublished - 2010

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    Eales, S. A., Smith, M. W. L., Wilson, C. D., Bendo, G. J., Cortese, L., Pohlen, M., Boselli, A., Gomez, H. L., Auld, R., Baes, M., Barlow, M. J., Bock, J. J., Bradford, M., Buat, V., Castro-Rodríguez, N., Chanial, P., Charlot, S., Ciesla, L., Clements, D. L., ... Zeilinger, W. W. (2010). Mapping the interstellar medium in galaxies with Herschel*/SPIRE. Astronomy and Astrophysics, 518(4), 5. https://doi.org/10.1051/0004-6361/201014536