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Determining Interstellar Reddening Using Intrinsic Colors of C- Type RR-Lyrae Variables

Anderson, Tyler
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1348595134

Abstract Details

2012, Master of Science (MS), Bowling Green State University, Physics.
We present calibrated VI light curves for 13 field c-type RR Lyraes. We determine the stars' mean-intensity magnitudes, light amplitudes, periods, and both mean colors and colors at `minimum light.' We explore the application of the defined phase window of `minimum light' to RRc's and find mean color to be a more accurate and physically meaningful quantity for use in determining interstellar reddening. Relations to determine reddening involving period, light amplitude, and metallicity using both mean and minimum light color are presented. The strongest relation, involving data from the best 39 stars between our field stars and RRc's across five GCs, finds (V-I)_mean = 0.924* Period + 0.036 mag, with an rms scatter of 0.031 mag.
Andrew Layden, PhD (Advisor)
John Laird, PhD (Committee Member)
Dale Smith, PhD (Committee Member)
77 p.
Astronomy
RR Lyrae; Variable stars; Interstellar Reddening; c-type RR Lyrae; Color; Intrinsic Color; Minimum light; RRL; RRc

Recommended Citations

Citations

  • Anderson, T. (2012). Determining Interstellar Reddening Using Intrinsic Colors of C- Type RR-Lyrae Variables [Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1348595134

    APA Style (7th edition)

  • Anderson, Tyler. Determining Interstellar Reddening Using Intrinsic Colors of C- Type RR-Lyrae Variables. 2012. Bowling Green State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1348595134.

    MLA Style (8th edition)

  • Anderson, Tyler. "Determining Interstellar Reddening Using Intrinsic Colors of C- Type RR-Lyrae Variables." Master's thesis, Bowling Green State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1348595134

    Chicago Manual of Style (17th edition)

bgsu1348595134
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© 2012, all rights reserved.
This open access ETD is published by Bowling Green State University and OhioLINK.