Astroseminar Series - Claudia Maraston - HYBRID

Wednesday, May 3, 2023 11:30 am - 11:30 am EDT (GMT -04:00)
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Professor Claudia Maraston

Claudia Maraston is a Professor of Astrophysics at the University of Portsmouth (UK), where she has been since 2007.  She obtained her PhD at the University of Bologna, and held postdoctoral fellowships at the Ludwig-Maximillian University of Munich and the Max-Planck Institute for extra-terrestrial physics (MPE) in Garching. In 2005 she was awarded a Marie-Curie fellowship which she held at the University of Oxford. In 2007 she was awarded a Marie-Curie Excellence Team Grant with which she joined the University of Portsmouth.  Dr. Maraston is an internationally renowned expert in the modelling of the spectro-photometric and mass properties of galaxies. These Stellar Population Models find ubiquitous applications in astrophysics and cosmology. In particular, they are the tool to study galaxy formation and evolution both theoretically and by interpreting data.

Title: Stellar Population models based on 60,000 empirical spectra

Abstract: Evolutionary population synthesis models describing the energetic emission and stellar mass distribution of galaxies and star clusters are the essential interpretative tool in astrophysics and cosmology. They are used to infer key properties of stellar systems (age, chemical composition, stellar mass, dark matter fraction) from data, to predict the spectral energy distribution of simulated galaxies, to trace galaxy ages as a function of cosmic time for constraining cosmology, to predict the number, mass and location of stellar remnants rooting gravitational waves. Given their widespread use, the accuracy of population synthesis models directly affect our understanding of galaxy formation and evolution in a cosmological context. I shall review progress in the field, with particular focus on a recent effort in building models based on the largest stellar empirical library ever assembled.
Location Information
Location Address: Physcis and Astronomy
200, University Avenue, W
PHY 313
Waterloo, ON, CA  N2L 3G1
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