Using Galaxy Merger Simulations Combined with Radiative Transfer Calculations to Study Galaxy Properties and Evolution

Details Using Galaxy Merger Simulations Combined with Radiative Transfer Calculations to Study Galaxy Properties and Evolution Using Galaxy Merger Simulations Combined with Radiative Transfer Calculations to Study Galaxy Properties and Evolution

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342316h&link_type=abstract

American Astronomical Society, AAS Meeting #213, #423.16; Bulletin of the American Astronomical Society, Vol. 41, p.245

Astronomy and Astrophysics

Astronomy

Scientific paper

We combine N-body + smoothed-particle hydrodynamics (SPH) simulations of galaxy mergers with radiative transfer (RT) calculations in order to study galaxy properties and evolution. The galaxy merger simulations are done using a version of Gadget-2 including star formation and stellar and AGN feedback. The radiative transfer is calculated using the polychromatic Monte Carlo RT code Sunrise, which includes emission from both stars and AGN and a self-consistent treatment of dust.
We study how well commonly used observational techniques to determine stellar mass, stellar ages, star formation rate, dust temperature, and dust mass can recover the known quantities from the observations. This work has broad applicability to observations of galaxies and is especially important for observations of high-redshift galaxies, where the uncertainties and systematics inherent in observational models are less understood.
We acknowledge support from the Keck Foundation and the National Science Foundation.

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