| Issue |
EAS Publications Series
Volume 52, 2011
Conditions and Impact of Star Formation
|
|
|---|---|---|
| Page(s) | 151 - 155 | |
| DOI | https://doi.org/10.1051/eas/1152024 | |
| Published online | 25 November 2011 | |
M. Röllig, R. Simon, V. Ossenkopf and J. Stutzki (eds)
EAS Publications Series, 52 (2011) 151-155
The CO-H2 conversion factor of diffuse ISM: Bright 12CO emission also traces diffuse gas
1 Institut de Radioastronomie
Millimétrique & Obs. de Paris,
France ;
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
2 National Radio Astronomy
Observatory, USA ;
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
3 Joint ALMA Observatory,
Chili ;
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
We show that the XCO factor, which converts the CO luminosity into the column density of molecular hydrogen has similar values for dense, fully molecular gas and for diffuse, partially molecular gas. We discuss the reasons of this coincidence and the consequences for the understanding of the interstellar medium.
© EAS, EDP Sciences 2011