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Author David, Trevor J. ♦ Hillenbrand, Lynne A. ♦ Zhang, Celia ♦ Riddle, Reed L. ♦ Stauffer, John ♦ Rebull, L. M. ♦ Cody, Ann Marie ♦ Conroy, Kyle ♦ Stassun, Keivan G. ♦ Pope, Benjamin ♦ Aigrain, Suzanne ♦ Gillen ♦ Cameron, Andrew Collier ♦ Barrado, David ♦ Isaacson, Howard ♦ Marcy, Geoffrey W. ♦ Ziegler, Carl ♦ Law, Nicholas M. ♦ Baranec, Christoph
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ ABSORPTION SPECTROSCOPY ♦ BENCHMARKS ♦ COMPARATIVE EVALUATIONS ♦ ECLIPSE ♦ INFRARED SPECTRA ♦ LIMITING VALUES ♦ MASS ♦ PHOTOMETRY ♦ RADIAL VELOCITY ♦ ROTATION ♦ STAR CLUSTERS ♦ STAR EVOLUTION ♦ STARS ♦ STARSPOTS
Abstract The star HII 2407 is a member of the relatively young Pleiades star cluster and was previously discovered to be a single-lined spectroscopic binary. It is newly identified here within Kepler/K2 photometric time series data as an eclipsing binary system. Mutual fitting of the radial velocity and photometric data leads to an orbital solution and constraints on fundamental stellar parameters. While the primary has arrived on the main sequence, the secondary is still pre-main sequence and we compare our results for the M/M{sub ⊙} and R/R{sub ⊙} values with stellar evolutionary models. We also demonstrate that the system is likely to be tidally synchronized. Follow-up infrared spectroscopy is likely to reveal the lines of the secondary, allowing for dynamically measured masses and elevating the system to benchmark eclipsing binary status.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-11-20
Publisher Place United States
Journal Astrophysical Journal
Volume Number 814
Issue Number 1


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