Date Available
11-18-2011
Year of Publication
2011
Degree Name
Master of Science (MS)
Document Type
Thesis
College
Arts and Sciences
Department
Physics and Astronomy
First Advisor
Tom Troland
Abstract
The mystery of Canis Major overdensity is addressed. We discuss concurrent methods and their limitations on the determination of interstellar reddening. We establish a new way to determine line of sight interstellear reddening by observing stellar spectral lines and UBV colors. We observe and analyze spectra of 22 stars in different open clusters. We find that Hydrogen Balmer line at 4861 angstrom can predict the stellar atmospheric parameters and intrinsic colors with reasonable accuracy. Comparing with observed colors we derive the reddening of the stars. We compare our results with standard database WEBDA and find that within 90% probability limit the standard deviation of the error is 0.102798. This is improved by taking the absolute maximum probabilities and the scatter becomes 0.0688865.
Recommended Citation
Uddin, Syed A., "DETERMINING INTERSTELLAR REDDENING: A NEW APPROACH USING SPECTROSCOPY AND PHOTOMETRY" (2011). University of Kentucky Master's Theses. 150.
https://uknowledge.uky.edu/gradschool_theses/150
