TABATABAEI, Fatemeh S.; BRAINE, J.; KRAMER, Carsten; XILOURIS, Manolis; BOQUIEN, Mederic; VERLEY, Simon; SCHINNERER, Eva; CALZETTI, Daniela; COMBES, Françoise; ISRAEL, Frank; HENKEL, Christian; HENKEL

doi:10.1017/S1743921312008885

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TABATABAEI, Fatemeh S.

BRAINE, J.
FORMATION STELLAIRE 2012

KRAMER, Carsten
KOSMA, I. Physikalisches Institut

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Proceedings of the International Astronomical Union, IAU Symposium, Volume 284, p. 125-127, 2012 - 5-9 September 2011, Preston, United Kingdom, IAU Symposium, Volume 284, p. 125-127, 2012 - 5-9 September 2011, Preston, United Kingdom, The Spectral Energy Distribution of Galaxies, 2012, Preston. 2012-08, vol. 284, p. 125-127

Cambridge University Press (CUP)

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Using the Herschel PACS and SPIRE FIR/submm data, we investigate variations in the dust spectral index β in the nearby spiral galaxy M33 at a linear resolution of 160 pc. We use an iteration method in two different approaches, single and two-component modified black body models. In both approaches, β is higher in the central disk than in the outer disk similar to the dust temperature. There is a positive correlation between β and Hα as well as with the molecular gas traced by CO(2-1). A Monte-Carlo simulation shows that the physical parameters are better constrained when using the two-component model.< Leer menos

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Interstellar Medium

Star formation

Dust

Galaxies: M33

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Variation in the dust spectral index across M33

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