The mysterious dimmings of the T Tauri star V1334 Tau
Article
Article Title | The mysterious dimmings of the T Tauri star V1334 Tau |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Rodriguez, Joseph E. (Author), Zhou, George (Author), Cargile, Phillip A. (Author), Stevens, Daniel J. (Author), Osborn, Hugh P. (Author), Shappee, Benjamin J. (Author), Reed, Phillip A. (Author), Lund, Michael B. (Author), Relles, Howard M. (Author), Latham, David W. (Author), Eastman, Jason (Author), Stassun, Keivan G. (Author), Bieryla, Allyson (Author), Esquerdo, Gilbert A. (Author), Berlind, Perry (Author), Calkins, Michael L. (Author), Vanderburg, Andrew (Author), Gaidos, Eric (Author), Ansdell, Megan (Author), Siverd, Robert J. (Author), Beatty, Thomas G. (Author), Kochanek, Christopher S. (Author), Pepper, Joshua (Author), Gaudi, B. Scott (Author), West, Richard G. (Author), Pollaco, Don (Author), James, David (Author), Kuhn, Rudolph B. (Author), Stanek, Krzysztof Z. (Author), Holoien, Thomas W.-S. (Author), Prieto, Jose L. (Author), Johnson, Samson A. (Author), Sergi, Anthony (Author), McCrady, Nate (Author), Johnson, John A. (Author), Wright, Jason T. (Author), Wittenmyer, Robert A. (Author) and Horner, Jonathan (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 836 (2) |
Article Number | 209 |
Number of Pages | 11 |
Year | 2017 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-4357/aa5da5 |
Web Address (URL) | http://iopscience.iop.org/article/10.3847/1538-4357/aa5da5/pdf |
Abstract | We present 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. |
Keywords | circumstellar matter, protoplanetary disks, V1334 Tau, T Tauri |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Center for Astrophysics Harvard and Smithsonian, United States |
Ohio State University, United States | |
University of Warwick, United Kingdom | |
Carnegie Observatories Pasadena, United States | |
Kutztown University, United States | |
Vanderbilt University, United States | |
University of Hawaii, United States | |
Las Cumbres Observatory, United States | |
Pennsylvania State University, United States | |
Lehigh University, United States | |
University of Washington, United States | |
South African Astronomical Observatory, South Africa | |
Millennium Institute of Astrophysics, Chile | |
University of Montana, United States | |
Computational Engineering and Science Research Centre |
https://research.usq.edu.au/item/q44z2/the-mysterious-dimmings-of-the-t-tauri-star-v1334-tau
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