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arXiv 1005.2113astro-ph.CO
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用Herschel/SPIRE绘制星系中的星际介质

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,… 展开作者

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-Rodriguez, 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. Perez-Fournon, N. Rangwala, E. E. Rigby, H. Roussel, 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

摘要:

绘制星系中星际介质的标准方法是观察CO 1-0谱线中的分子气体和21厘米谱线中的原子气体,目前的望远镜在很大程度上局限于附近宇宙中的星系。在这封信中,我们使用SPIRE观测星系M99和M100探索另一种方法映射的星际介质使用连续辐射的尘埃。我们通过测量星系中恒星形成率与气体面密度之间的关系,对这两种方法进行了比较。我们发现这两种方法给出了类似的色散关系,证实了观测尘埃的连续辐射是一种很有前途的方法来映射星系中的星际介质。

英文摘要:

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 M99 and M100 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. 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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