Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..325p&link_type=abstract
SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,
Astronomy and Astrophysics
Astrophysics
Dust, Extinction, Hii Regions, Magellanic Clouds
Scientific paper
Dust emission associated with ionized gas has so far been detected only in our Galaxy, and for wavelengths longer than 60 μm. Spitzer data now offer the opportunity to carry out a similar analysis in the Large Magellanic Cloud, and to separate dust emission into components associated with different phases of the gas, i.e. atomic, molecular and ionized. We perform a correlation study using infrared Spitzer data as part of the Surveying the Agents of a Galaxy's Evolution (SAGE) and IRAS 12-100 μm combined with gas tracers such as the ATCA/Parkes HI data, for the atomic phase, the NANTEN ^{12}CO data, for the molecular phase, and both the SHASSA Hα and the radio Parkes 5 GHz data, for the ionized phase. In particular, we investigate the presence of dust for different physical regimes of the ionized gas, spanning emission measures from 1 pc cm^{-6} (diffuse medium) to 10^3 pc cm^{-6} (HII regions).
Fukui Yasuo
Kawamura Akiko
Lagache Guilaine
Noriega-Crespo Alberto
Onishi Tatsuo
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