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Mentari: A pipeline to model the galaxy SED using semi analytic models

Published online by Cambridge University Press:  10 June 2020

Dian Triani ,
Darren Croton  and
Manodeep Sinha
Dian Triani
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology PO Box 218, Hawthorn VIC 3122, Australia email: [email protected] ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)
Darren Croton
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology PO Box 218, Hawthorn VIC 3122, Australia email: [email protected] ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)
Manodeep Sinha
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology PO Box 218, Hawthorn VIC 3122, Australia email: [email protected] ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)
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Abstract

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We build a theoretical picture of how the light from galaxies evolves across cosmic time. In particular, we predict the evolution of the galaxy spectral energy distribution (SED) by carefully integrating the star formation and metal enrichment histories of semi-analytic model (SAM) galaxies and combining these with stellar population synthesis models which we call mentari. Our SAM combines prescriptions to model the interplay between gas accretion, star formation, feedback process, and chemical enrichment in galaxy evolution. From this, the SED of any simulated galaxy at any point in its history can be constructed and compared with telescope data to reverse engineer the various physical processes that may have led to a particular set of observations. The synthetic SEDs of millions of simulated galaxies from mentari can cover wavelengths from the far UV to infrared, and thus can tell a near complete story of the history of galaxy evolution.

Keywords

galaxies: evolution - galaxies: stellar content - galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S341: Challenges in Panchromatic Modelling with Next Generation Facilities , November 2019 , pp. 119 - 123
Copyright
© International Astronomical Union 2020

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