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Mapping the interstellar medium in galaxies with Herschel/SPIRE

Eales, Stephen Anthony ORCID:, Smith, Matthew W. ORCID:, Wilson, C. D., Bendo, G. J., Cortese, Luca ORCID:, Pohlen, Michael, Boselli, A., Gomez, Haley Louise ORCID:, Auld, Robbie Richard, Baes, M., Barlow, M. J., Bock, J. J., Bradford, M., Buat, V., Castro-Rodríguez, N., Chanial, P., Charlot, S., Ciesla, L., Clements, D. L., Cooray, A., Cormier, D., Davies, Jonathan Ivor, Dwek, E., Elbaz, D., Galametz, M., Galliano, F., Gear, Walter Kieran ORCID:, Glenn, J., Griffin, Matthew Joseph ORCID:, Hony, S., Isaak, Kate Gudrun, Levenson, L. R., Lu, N., Madden, S., O'Halloran, B., Okumura, K., Oliver, S., Page, M. J., Panuzzo, P., Papageorgiou, Andreas, Parkin, T. J., Pérez-Fournon, I., Rangwala, N., Rigby, E. E., Roussel, H., Rykala, Adam John, Sacchi, N., Sauvage, M., Schulz, B., Schirm, M. R. P., Spinoglio, L., Srinivasan, S., Stevens, J. A., Symeonidis, M., Trichas, M., Vaccari, M., Vigroux, L., Wozniak, H., Wright, G. S. and Zeilinger, W. W. 2010. Mapping the interstellar medium in galaxies with Herschel/SPIRE. Astronomy and Astrophysics 518 , L62. 10.1051/0004-6361/201014536

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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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: galaxies: ISM / galaxies: spiral / dust, extinction / ISM: abundances
Publisher: EDP Sciences
ISSN: 0004-6361
Last Modified: 03 Dec 2023 15:28

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