A Young Eclipsing Binary and its Luminous Neighbors in the Embedded Star Cluster Sh 2-252E

Abstract

We present a photometric and light curve analysis of an eccentric eclipsing binary in the K2 Campaign 0 field that resides in Sh 2-252E, a young star cluster embedded in an H II region. We describe a spectroscopic investigation of the three brightest stars in the crowded aperture to identify which is the binary system. We find that none of these stars are components of the eclipsing binary system, which must be one of the fainter nearby stars. These bright cluster members all have remarkable spectra: Sh 2-252a (EPIC 202062176) is a B0.5 V star with razor sharp absorption lines, Sh 2-252b is a Herbig A0 star with disk-like emission lines, and Sh 2-252c is a pre-main sequence star with very red color.

arXiv commentAccepted for publication in The Astronomical Journal; 21 pages, 9 figures

References in corpus (11)

• Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
• The K2 Mission: Characterization and Early results
• A Grid of NLTE Line-Blanketed Model Atmospheres of Early B-type Stars
• PARSEC evolutionary tracks of massive stars up to $350M_{\odot }$ at metallicities 0.0001$\le Z\le$0.04
• A Technique for Extracting Highly Precise Photometry for the Two-Wheeled Kepler Mission
• CHIRON - A Fiber Fed Spectrometer for Precise Radial Velocities
• A Magnetic Confinement vs. Rotation Classification of Massive-Star Magnetospheres
• K2 Variable Catalogue: Variable Stars and Eclipsing Binaries in K2 Campaigns 1 and 0
• Evidence of magnetic field decay in massive main-sequence stars
• Optical and Near-infrared survey of the stellar contents associated with the star-forming Complex Sh2-252
• Uniform detection of the pre-main sequence population in the 5 embedded clusters related to the H\,II region NGC\,2174 (Sh2-252)

Cited by in corpus (1)

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