The Herschel Exploitation of Local Galaxy Andromeda (HELGA) - VII. A SKIRT radiative transfer model and insights on dust heating

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Volume 599 (March 2017)

A&A, 599 (2017) A64

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Table 1

Overview of the different stellar populations (SP) and dust component in our model.

Component	2D geometry	Vertical dimension	SED template	Normalization
Bulge
Evolved SP (12 Gyr)	3D Einasto profile		Bruzual & Charlot (2003)	3.6 μm
Disk
Evolved SP (8 Gyr)	Corrected^a 3.6 μm image	Exponential profile	Bruzual & Charlot (2003)	3.6 μm
Young SP (100 Myr)	Corrected^bFUV image	Exponential profile	Bruzual & Charlot (2003)	FUV
Ionising SP (10 Myr)	Corrected^b 24 μm image	Exponential profile	MAPPINGS III^c	FUV
Dust
Interstellar dust	MAGPHYS dust mass map^d	Exponential profile	THEMIS^e dust mix	Total dust mass

Notes. We used an inclination angle of 77.5° to deproject the input images.

^(a)

The Einasto bulge was first subtracted from the image.

^(b)

The contribution from the evolved stars was first subtracted from the image.

^(c)

The SED templates for obscured star formation from Groves et al. (2008).

^(d)

The dust mass map derived from the pixel-by-pixel MAGPHYS energy balance SED models from Viaene et al. (2014).

^(e)

Jones et al. (2013).

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