Date Available
6-14-2014
Year of Publication
2014
Degree Name
Master of Science (MS)
Document Type
Master's Thesis
College
Arts and Sciences
Department/School/Program
Physics and Astronomy
First Advisor
Dr. Ron Wilhelm
Abstract
RR Lyrae stars are old, iron-poor, Helium-burning variable stars. RR Lyraes are extremely useful for tracing phase-space structures and metallicities within the galaxy because they are easy to identify, have consistent luminosities, and are found in large numbers in the galactic disk, bulge, and halo. Here we present a new set of spectroscopic metallicity calibrations that use the equivalent widths of the Ca II K, Hγ, and Hδ lines to calculate metallicity values. Applied to spectroscopic survey data, these calibrations will help shed light on the evolution of the Milky Way and other galaxies.
Recommended Citation
Spalding, Eckhart, "A New Set of Spectroscopic Metallicity Calibrations for RR Lyrae Variable Stars" (2014). Theses and Dissertations--Physics and Astronomy. 22.
https://uknowledge.uky.edu/physastron_etds/22
