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Mapping the interstellar medium in galaxies with Herschel/SPIRE

  • S. A. Eales
  • , M. W. L. Smith
  • , C. D. Wilson
  • , G. J. Bendo
  • , L. 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. Cooray
  • D. Cormier, J. I. Davies, E. Dwek, D. Elbaz, M. Galametz, F. Galliano, W. K. Gear, J. Glenn, M. Griffin, S. Hony, K. G. 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. Roussel, A. Rykala, N. Sacchi, M. Sauvage, B. Schulz, M. R. P. Schirm, L. Spinoglio, S. Srinivasan, Jason Stevens, M. Symeonidis, M. Trichas, M. Vaccari, L. Vigroux, H. Wozniak, G. S. Wright, W. W. Zeilinger

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)
88 Downloads (Pure)

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.
Original languageEnglish
Article numberL62
Number of pages5
JournalAstronomy & Astrophysics
Volume518
DOIs
Publication statusPublished - 1 Jul 2010

Keywords

  • galaxies: ISM, galaxies: spiral, dust, extinction, ISM: abundances

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