Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session D12: Undergraduate Research III
3:30 PM–5:18 PM,
Saturday, April 13, 2019
Sheraton
Room: Plaza Court 1
Chair: Brad Conrad, Society of Physics Students/Sigma Pi Sigma
Abstract: D12.00009 : Multi-filter Photometric Analysis of Six W Ursae Majoris (W UMa) Type Eclipsing Binary Stars*
5:06 PM–5:18 PM
View Presentation Abstract
Presenter:
Tatsuya Akiba
(Truman State University)
Authors:
Tatsuya Akiba
(Truman State University)
Vayujeet Gokhale
(Truman State University)
We present light curve analysis of six variable stars: KID 11405559, V0342 Boo, AZ Vir, KID 7259917, V2363 Cyg, and KID 10253421. These targets are selected from the Kepler Eclipsing Binary Catalog published by Kirk et al. (2016) and a list of eclipsing binaries published by Kreiner (2004). Light curves are generated using data collected at the 31-inch NURO telescope at Lowell Observatory in Flagstaff, AZ, and a 17-inch PlaneWave telescope at Truman State Observatory in Kirksville, MO, using the Bessel B, V and R filters. We then produce truncated eight-term and twelve-term Fourier fits for these light curves, and quantify the O'Connell Effect exhibited by these systems by calculating the difference in the heights of the primary and secondary maxima, the "Light Curve Asymmetry" (LCA) coefficient, and the "O'Connell Effect Ratio" (OER). Our analysis shows that KID 11405559, V0342 Boo, and KID 7259917 exhibit significant O’Connell Effect. Additionally, we use the Fourier coefficients to suggest KID 7259917 as a β Lyrae-type system, and KID 10253421 as an Algol-candidate.
*This work was supported by the TruScholars Summer Undergraduate Research Program during the summer of 2017, sponsored by the Office of Student Research at Truman State University.
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