GOODS-Herschel: dust attenuation properties of UV selected high redshift galaxies

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Volume 545 (September 2012)

A&A, 545 (2012) A141

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Table 1

Input parameters for SED fitting with CIGALE.

Parameter	Symbol	Range

Dust component
Distribution of dust mass	α	1, 1.5, 2, 2.5¹
Amplitude of the bump	E_b	0, 0.5, 1, 1.5, 2.0, 2.5, 3, 3.5
Full width half maximum of the bump profile	γ	300, 350 Å²
Steepness of the attenuation law	δ	–0.8, –0.6, –0.4, –0.2, 0, 0.2
A_V for the young stellar population	A_V(ySP)	0.25, 0.5, 0.75, 0.9, 1.05, 1.2, 1.35, 1.5, 1.65, 1.8 mag
Reduction of A_V for the old population	f_att	0.25, 0.5, 1³

Stellar component
Age of the old stellar population	t₁	1, 2, 3, 4, 5 Gyr⁴
e-folding rate of the old stellar population	τ₁	1, 3 Gyr
Age of the young stellar population	t₂	0.01, 0.03, 0.1, 0.3 Gyr
Stellar mass fraction due to the young stellar population	f_ySP	0.01, 0.02, 0.05, 0.1, 0.2, 0.5

Values of input parameters defining the dust emission and attenuation recipes (first part of the table) and the stellar populations (second part of the table).

⁽¹⁾

A single value of α (α = 2) is used when PACS data are not available.

⁽²⁾

A single value of γ is used for each run of the code. The baseline value is 350 Å.

⁽³⁾

A single value of f_att is assumed for each run of the code. The baseline value is 0.5.

⁽⁴⁾

The age of the old stellar population is always lower than that of the universe at the redshift of the object.

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