Dust and gas in the Magellanic clouds from the Heritage Herschel key project, I: dust properties and insights into the origin of the submillimeter excess emission
- Gordon, Karl
- Roman-Duval, Julia
- Bot, Caroline
- Meixner, Margaret
- Babler, Brian
- Bernard, Jean-Philippe
- Bolatto, Alberto
- Boyer, Martha L
- Clayton, Geoffrey C
- Engelbracht, Charles
- Fukui, Yasuo
- Galametz, Maud
- Galliano, Frederic
- Hony, Sacha
- Hughes, Annie
- Indebetouw, Remy
- Israel, Frank P
- Jameson, Katherine
- Kawamura, Akiko
- Lebouteiller, Vianney
- Li, Aigen
- Madden, Suzanne C
- Matsuura, Mikako
- Misselt, Karl
- Montiel, Edward
- Okumura, K
- Onishi, Toshikazu
- Panuzzo, Pasquale
- Paradis, Deborah
- Rubio, Monica
- Sandstrom, Karin
- Sauvage, Marc
- Seale, Jonathan
- Sewiło, Marta
- Tchernyshyov, Kirill
- Skibba, Ramin
DOIAbstract
The dust properties in the Large and Small Magellanic clouds (LMC/SMC) are studied using the HERITAGE Herschel Key Project photometric data in five bands from 100 to 500 mu m. Three simple models of dust emission were fit to the observations: a single temperature blackbody modified by a power-law emissivity (SMBB), a single temperature blackbody modified by a broken power-law emissivity (BEMBB), and two blackbodies with different temperatures, both modified by the same power-law emissivity (TTMBB). Using these models, we investigate the origin of the submillimeter excess, defined as the submillimeter emission above that expected from SMBB models fit to observations <200 mu m. We find that the BEMBB model produces the lowest fit residuals wi...
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