Eclipsing Binary Science via the Merging of Transit and Doppler Exoplanet Survey Data—A Case Study with the MARVELS Pilot Project and SuperWASP

Scott W. Fleming, Pierre F.L. Maxted, Leslie Hebb, Keivan G. Stassun, Jian Ge, Philli Cargile, Don Pollacco, Brian Lee, Collier Cameron, [No Value] Andrew, Van Eyken, C. Julian, Ian Skillen, Justin R. Crepp, D. Nguyen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Exoplanet transit and Doppler surveys discover many binary stars during their operation that can be used to conduct a variety of ancillary science. Specifically, eclipsing binary stars can be used to study the stellar mass-radius relationship and to test predictions of theoretical stellar evolution models. By cross-referencing 24 binary stars found in the MARVELS Pilot Project with SuperWASP photometry, we find two new eclipsing binaries, TYC 0272-00458-1 and TYC 1422-01328-1, which we use as case studies to develop a general approach to eclipsing binaries in survey data. TYC 0272-00458-1 is a single-lined spectroscopic binary for which we calculate a mass of the secondary and radii for both components using reasonable constraints on the primary mass through several different techniques. For a primary mass of M 1 = 0.92 ± 0.1 M sun, we find M 2 = 0.610 ± 0.036 M sun, R 1 = 0.932 ± 0.076 R sun, and R 2 = 0.559 ± 0.102 R sun, and find that both stars have masses and radii consistent with model predictions. TYC 1422-01328-1 is a triple-component system for which we can directly measure the masses and radii of the eclipsing pair. We find that the eclipsing pair consists of an evolved primary star (M 1 = 1.163 ± 0.034 M sun, R 1 = 2.063 ± 0.058 R sun) and a G-type dwarf secondary (M 2 = 0.905 ± 0.067 M sun, R 2 = 0.887 ± 0.037 R sun). We provide the framework necessary to apply this analysis to much larger data sets.
Original languageEnglish
Article number50
JournalAstronomical Journal
Volume142
Issue number2
DOIs
Publication statusPublished - Aug 2011

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Fingerprint Dive into the research topics of 'Eclipsing Binary Science via the Merging of Transit and Doppler Exoplanet Survey Data—A Case Study with the MARVELS Pilot Project and SuperWASP'. Together they form a unique fingerprint.

  • Cite this

    Fleming, S. W., Maxted, P. F. L., Hebb, L., Stassun, K. G., Ge, J., Cargile, P., Pollacco, D., Lee, B., Cameron, C., Andrew, N. V., Eyken, V., Julian, C., Skillen, I., Crepp, J. R., & Nguyen, D. (2011). Eclipsing Binary Science via the Merging of Transit and Doppler Exoplanet Survey Data—A Case Study with the MARVELS Pilot Project and SuperWASP. Astronomical Journal, 142(2), [50]. https://doi.org/10.1088/0004-6256/142/2/50