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Cold Dust and its Heating Sources in M 33

by Hughes, David H. , Scott, Kimberly S. , Tsukagoshi, Takashi , Kawabe, Ryohei , Kuno, Nario , Miura, Rie , Sawada, Tsuyoshi , Ezawa, Hajime , Aretxaga, Itziar , Austermann, Jason E. , Perera, Thushara A. , Kohno, Kotaro , Tanaka, Kunihiko , Nakanishi, Koichiro , Egusa, Fumi , Tamura, Yoichi , Onodera, Sachiko , Yun, Min S. , Komugi, Shinya , Wilson, Grant W. , Tosaki, Tomoka , Muraoka, Kazuyuki

in Astronomy / Contributed Papers / Heat conductivity / Space telescopes / Stars & galaxies

2010

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Cold Dust and its Heating Sources in M 33

in Astronomy / Contributed Papers / Heat conductivity / Space telescopes / Stars & galaxies

2010

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Cold Dust and its Heating Sources in M 33

in Astronomy / Contributed Papers / Heat conductivity / Space telescopes / Stars & galaxies

2010

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Journal Article

Cold Dust and its Heating Sources in M 33

Hughes, David H.,

Scott, Kimberly S.,

Tsukagoshi, Takashi,

Kawabe, Ryohei,

Kuno, Nario,

Miura, Rie,

Sawada, Tsuyoshi,

Ezawa, Hajime,

Aretxaga, Itziar,

Austermann, Jason E.,

Perera, Thushara A.,

Kohno, Kotaro,

Tanaka, Kunihiko,

Nakanishi, Koichiro,

Egusa, Fumi,

Tamura, Yoichi,

Onodera, Sachiko,

Yun, Min S.,

Komugi, Shinya,

Wilson, Grant W.,

Tosaki, Tomoka,

Muraoka, Kazuyuki

2010

Overview

We have mapped the nearby face-on spiral galaxy M 33 in the 1.1 mm dust continuum using AzTEC on Atacama Submillimeter Telescope Experiment (ASTE). The preliminary results are presented here. The observed dust has a characteristic temperature of ~ 21 K in the central kpc, radially declining down to ~ 13 K at the edge of the star forming disk. We compare the dust temperatures with KS band flux and star formation tracers. Our results imply that cold dust heating may be driven by long-lived stars even nearby star forming regions.

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Cambridge University Press

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