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First Results from the Disk Eclipse Search with KELT (DESK) Survey

Published online by Cambridge University Press:  27 January 2016

Joseph E. Rodriguez ,
Joshua Pepper  and
Keivan G. Stassun
Joseph E. Rodriguez
Affiliation:
Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Nashville, TN 37235, USA email: [email protected]
Joshua Pepper
Affiliation:
Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Nashville, TN 37235, USA email: [email protected] Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, PA 18015, USA email: [email protected]
Keivan G. Stassun
Affiliation:
Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Nashville, TN 37235, USA email: [email protected] Department of Physics, Fisk University, 1000 17th Avenue North, Nashville, TN 37208, USA email: [email protected]
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Abstract

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Using time-series photometry from the Kilodegree Extremely Little Telescope (KELT) exoplanet survey, we are looking for eclipses of stars by their protoplanetary disks, specifically in young stellar associations. To date, we have discovered two previously unknown, large dimming events around the young stars RW Aurigae and V409 Tau. We attribute the dimming of RW Aurigae to an occultation by its tidally disrupted disk, with the disruption perhaps resulting from a recent flyby of its binary companion. Even with the dynamical environment of RW Aurigae, the distorted disk material remains very compact and presumably capable of forming planets. This system also shows that strong binary interactions with disks can also influence planet and core composition by stirring up and mixing materials during planet formation. We interpret the dimming of V409 Tau to be due to a feature, possibly a warp or perturbation, lying at least 10 AU from the host star in its nearly edge-on circumstellar disk.

Keywords

Circumstellar MatterIndividual Stars: RW AurIndividual Stars: AA TauIndividual Stars: V409 TauPre-main SequenceStars: Variables: T Tauri
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S314: Young Stars & Planets Near the Sun , November 2015 , pp. 167 - 170
Copyright
Copyright © International Astronomical Union 2016 

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