The Mysterious Dimmings of the T Tauri Star V1334 Tau

Rodriguez, Joseph E.; Zhou, George; Cargile, Phillip A.; Stevens, Daniel J.; Osborn, Hugh P.; Shappee, Benjamin J.; Reed, Phillip A.; Lund, Michael B.; Relles, Howard M.; Latham, David W.; Eastman, Jason; Stassun, Keivan G.; Bieryla, Allyson; Esquerdo, Gilbert A.; Berlind, Perry; Calkins, Michael L.; Vanderburg, Andrew; Gaidos, Eric; Ansdell, Megan; Siverd, Robert J.; Beatty, Thomas G.; Kochanek, Christopher S.; Pepper, Joshua; Gaudi, B. Scott; West, Richard G.; Pollacco, Don; James, David; Kuhn, Rudolf B.; Stanek, Krzysztof Z.; Holoien, Thomas W. -S.; Prieto, Jose L.; Johnson, Samson A.; Sergi, Anthony; McCrady, Nate; Johnson, John A.; Wright, Jason T.; Wittenmyer, Robert A.; Horner, Jonathan

doi:10.3847/1538-4357/aa5da5

Title: The Mysterious Dimmings of the T Tauri Star V1334 Tau

Journal Article · Mon Feb 20 00:00:00 EST 2017 · The Astrophysical Journal (Online)

DOI:https://doi.org/10.3847/1538-4357/aa5da5· OSTI ID:1537179

; Zhou, George; Cargile, Phillip A.; Stevens, Daniel J.; Osborn, Hugh P.;

; Reed, Phillip A.;

; Relles, Howard M.;

;

; Bieryla, Allyson; Esquerdo, Gilbert A.; Berlind, Perry; Calkins, Michael L.;

; Gaidos, Eric;

; Siverd, Robert J. more »

Presented here is the discovery of two extended ~0.12 mag dimming events of the weak-lined T Tauri star V1334. The start of the first event was missed but came to an end in late 2003, and the second began in 2009 February, and continues as of 2016 November. Since the egress of the current event has not yet been observed, it suggests a period of >13 years if this event is periodic. Spectroscopic observations suggest the presence of a small inner disk, although the spectral energy distribution shows no infrared excess. We explore the possibility that the dimming events are caused by an orbiting body (e.g., a disk warp or dust trap), enhanced disk winds, hydrodynamical fluctuations of the inner disk, or a significant increase in the magnetic field flux at the surface of the star. We also find a ~0.32 day periodic photometric signal that persists throughout the 2009 dimming which appears to not be due to ellipsoidal variations from a close stellar companion. High-precision photometric observations of V1334 Tau during K2 campaign 13, combined with simultaneous photometric and spectroscopic observations from the ground, will provide crucial information about the photometric variability and its origin.

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Research Organization:: Krell Institute, Ames, IA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Contributing Organization:: MINERVA Collaboration

Grant/Contract Number:: FG02-97ER25308

OSTI ID:: 1537179

Journal Information:: The Astrophysical Journal (Online), Vol. 836, Issue 2; ISSN 1538-4357

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 12 works

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Title: The Mysterious Dimmings of the T Tauri Star V1334 Tau

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