I received my undergraduate degree in astrophysics from The University of California, Berkeley in December, 2006. I then matriculated in August, 2007 to the Ph.D. program in Astronomy within the Astronomy Department at Yale University . Under the guidance of my thesis advisor, Marla Geha , I successfully defended my thesis on 'Studying the Evolution of the M31 Dwarf Galaxies' in September, 2013. I am currently a Fellow at Insight Data Science.
Deep photometric surveys of dwarf galaxies allow us to study in detail their morphology. Signatures of recent interactions is preserved in the way the stellar component of these systems is distributed. Decomposing the stellar populations into their requisite populations gives us insight into the age distribution of these stars.
Using medium-resolution spectroscopy of the stellar populations of these dwarfs, which gives us the radial velocity of individual stars, we determine the internal dynamics of these systems. With samples of >100 stars per galaxy, distributed almost uniformly across the surface of the dwarf, we deduce spatially resolved mass profiles for these dwarfs.
Using the same stars observed for the purposes of determining the internal dynamics of these dwarf galaxies, we determine the chemical content of individual stars using the strong calcium triplet lines (CaT). While the dynamics of the system is a snapshot of its current state, the chemical content of a galaxy provides its integrated history from the time of formation to the present.
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Nhung.t.ho at gmail.com