Physics and Astronomy - Astronomy Seminar

Dartmouth Events

Physics and Astronomy - Astronomy Seminar

Alex Mendez, University of California, San Diego

Monday, November 4, 2013
10:00am-11:00am
Wilder 202
Intended Audience(s): Public
Categories: Lectures & Seminars
Title: Star Formation Quenching and AGN in Galaxies
 
Abstract: I will discuss two observational projects related to galaxy and active galactic nuclei (AGN) evolution at z < 1. First I will present a statistical study of the morphologies of galaxies in which star formation is being shut down or quenched; this has implications for how red, elliptical galaxies are formed.  I will discuss the physical processes behind star formation quenching from the morphological transformations that galaxies undergo during this process.  Then I will focus on multi-wavelength AGN selection methods and tie together disparate results in the literature.  Several IR-AGN selection methods have been developed using Spitzer/IRAC data in order to supplement traditional X-ray AGN selection; I will characterize the uniqueness and complementarity of these methods as a function of both IR and X-ray depth. I will use data from the PRIsm MUlti-object Survey (PRIMUS) to compare the efficiency of IR and X-ray AGN selection and discuss the properties of the AGN and host galaxy populations of each.  Finally, I will briefly mention ongoing work to compare the clustering of observed IR and X-ray AGN samples relative to stellar mass-matched galaxy samples.
For more information, contact:
Tressena Manning
603-646-2854

Events are free and open to the public unless otherwise noted.