www.dark-cosmology.dk DARK Cosmology Centre | Niels Bohr Institutet | Københavns Universitet

Peter Laursen

Supervisor: Anja C. Andersen

Dust in Young Galaxies

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The code

Radiative transfer

Monte Carlo

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ResultsSurface brightness maps

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ResultsSurface brightness maps

Surface brightnessprofiles

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ResultsSurface brightness maps

Surface brightnessprofiles

Spectra

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Dust in Young Galaxies

Star formationDust formationDust destructionRadiative transfer

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Dust in Young Galaxies

Dust Extinction in Starburst Galaxies at z = 3 – 6

Dust Creation in Supernova Explosions

Lyman Galaxies at z = 8.8

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Dust Extinction in Starburst

Galaxies at z = 3 - 6Lyman-Break Galaxies:

SFR = 10 – 1000 M☼ yr-1

Correcting for dust with Calzetti ext. curve: SFR increases a factor of 2 – 5

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Dust Extinction in Starburst

Galaxies at z = 3 - 6

Advance Monte Carlo code

Predict effect of dust as function of tsf, Z and z Very young starbursts: No AGBs, intense UV field

Analyze and model SED of LBGs from GOODS z = 2 – 6; X-rays to mid-IR

and Ultra-VISTA (COSMOS field)

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Dust Creation in Supernova Explosions

No AGB stars SNe?

Grain formation and growth in SN remnants

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Lyman Galaxies at z = 8.8

~no sky-lines in the near-IRe.g., = 1.2 m

Simulate morphology and SB of statistical sample

Compare with VISTA observations