The KELT Follow-up Network and Transit False-positive Catalog: Pre-vetted False Positives for TESS

Collins, Karen A. and Collins, Kevin I. and Pepper, Joshua and Labadie-Bartz, Jonathan and Stassun, Keivan G. and Gaudi, B. Scott and Bayliss, Daniel and Bento, Joao and Colon, Knicole D. and Feliz, Dax and James, David and Johnson, Marshall C. and Kuhn, Rudolf B. and Lund, Michael B. and Penny, Matthew T. and Rodriguez, Joseph E. and Siverd, Robert J. and Stevens, Daniel J. and Yao, Xinyu and Zhou, George ORCID: https://orcid.org/0000-0002-4891-3517 and Akshay, Mundra and Aldi, Giulio F. and Ashcraft, Cliff and Awiphan, Supachai and Basturk, Ozgur and Baker, David and Beatty, Thomas G. and Benni, Paul and Berlind, Perry and Berriman, G. Bruce and Berta-Thompson, Zach and Bieryla, Allyson and Bozza, Valerio and Calchi Novati, Sebastiano and Calkins, Michael L. and Cann, Jenna M. and Ciardi, David R. and Clark, Ian R. and Cochran, William D. and Cohen, David H. and Conti, Dennis and Crepp, Justin R. and Curtis, Ivan A. and D'Ago, Giuseppe and Diazeguigure, Kenny A. and Dressing, Courtney D. and Dubois, Franky and Ellingson, Erica and Ellis, Tyler G. and Esquerdo, Gilbert A. and Evans, Phil and Friedli, Alison and Fukui, Akihiko and Fulton, Benjamin J. and Gonzales, Erica J. and Good, John C. and Gregorio, Joao and Gumusayak, Tolga and Hancock, Daniel A. and Harada, Caleb K. and Hart, Rhodes and Hintz, Eric G. and Jang-Condell, Hannah and Jeffery, Elizabeth J. and Jensen, Eric L. N. and Jofre, Emiliano and Joner, Michael D. and Kar, Aman and Kasper, David H. and Keten, Burak and Kielkopf, John F. and Komonjinda, Siramas and Kotnik, Cliff and Latham, David W. and Leuquire, Jacob and Lewis, Tiffany R. and Logie, Ludwig and Lowther, Simon J. and MacQueen, Phillip J. and Martin, Trevor J. and Mawet, Dimitri and McLeod, Kim K. and Murawski, Gabriel and Narita, Norio and Nordhausen, Jim and Oberst, Thomas E. and Odden, Caroline and Panka, Peter A. and Petrucci, Romina and Plavchan, Peter and Quinn, Samuel N. and Rau, Steve and Reed, Phillip A. and Relles, Howard and Renaud, Joe P. and Scarpetta, Gaetano and Sorber, Rebecca L. and Spencer, Alex D. and Spencer, Michelle and Stephens, Denise C. and Stockdale, Chris and Tan, Thiam-Guan and Trueblood, Mark and Trueblood, Patricia and Vanaverbeke, Siegfried and Villanueva, Steven, Jr. and Warner, Elizabeth M. and West, Mary Lou and Yalcinkaya, Selcuk and Yeigh, Rex and Zambelli, Roberto (2018) The KELT Follow-up Network and Transit False-positive Catalog: Pre-vetted False Positives for TESS. The Astronomical Journal, 156 (5):234. pp. 1-19. ISSN 0004-6256

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Abstract

The Kilodegree Extremely Little Telescope (KELT) project has been conducting a photometric survey of transiting planets orbiting bright stars for over 10 years. The KELT images have a pixel scale of ∼23″ pixel-1 - very similar to that of NASA's Transiting Exoplanet Survey Satellite (TESS) - as well as a large point-spread function, and the KELT reduction pipeline uses a weighted photometric aperture with radius 3′. At this angular scale, multiple stars are typically blended in the photometric apertures. In order to identify false positives and confirm transiting exoplanets, we have assembled a follow-up network (KELT-FUN) to conduct imaging with spatial resolution, cadence, and photometric precision higher than the KELT telescopes, as well as spectroscopic observations of the candidate host stars. The KELT-FUN team has followed-up over 1600 planet candidates since 2011, resulting in more than 20 planet discoveries. Excluding ∼450 false alarms of non-astrophysical origin (i.e., instrumental noise or systematics), we present an all-sky catalog of the 1128 bright stars (6 < V < 13) that show transit-like features in the KELT light curves, but which were subsequently determined to be astrophysical false positives (FPs) after photometric and/or spectroscopic follow-up observations. The KELT-FUN team continues to pursue KELT and other planet candidates and will eventually follow up certain classes of TESS candidates. The KELT FP catalog will help minimize the duplication of follow-up observations by current and future transit surveys such as TESS.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Astrophysics (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Astrophysics (1 Aug 2018 -)
Date Deposited: 09 Feb 2022 01:59
Last Modified: 04 Apr 2022 07:51
Uncontrolled Keywords: methods: observational; techniques: photometric; techniques: spectroscopic; techniques: radial velocities; Astrophysics - Earth and Planetary Astrophysics
Fields of Research (2008): 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280120 Expanding knowledge in the physical sciences
Identification Number or DOI: https://doi.org/10.3847/1538-3881/aae582
URI: http://eprints.usq.edu.au/id/eprint/44980

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