[en] We present a photometric detection of the first brightness dips of the unique variable star KIC 8462852 since the end of the Kepler space mission in 2013 May. Our regular photometric surveillance started in 2015 October, and a sequence of dipping began in 2017 May continuing on through the end of 2017, when the star was no longer visible from Earth. We distinguish four main 1%-2.5% dips, named “Elsie,” “Celeste,” “Skara Brae,” and “Angkor,” which persist on timescales from several days to weeks. Our main results so far are as follows: (i) there are no apparent changes of the stellar spectrum or polarization during the dips and (ii) the multiband photometry of the dips shows differential reddening favoring non-gray extinction. Therefore, our data are inconsistent with dip models that invoke optically thick material, but rather they are in-line with predictions for an occulter consisting primarily of ordinary dust, where much of the material must be optically thin with a size scale ≪1 μm, and may also be consistent with models invoking variations intrinsic to the stellar photosphere. Notably, our data do not place constraints on the color of the longer-term “secular” dimming, which may be caused by independent processes, or probe different regimes of a single process.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Boyajian, Tabetha S. ; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Alonso, Roi; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Ammerman, Alex; University of Notre Dame QuarkNet Center, Notre Dame, IN, USA
Armstrong, David; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Asensio Ramos, A.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Barkaoui, K.; Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Belgium ; Laboratoire LPHEA, Oukaimeden Observatory, Cadi Ayyad University/FSSM, BP 2390, Marrakesh, Morocco
Beatty, Thomas G.; Department of Astronomy & Astrophysics, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA ; Center for Exoplanets and Habitable Worlds, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA
Benni, Paul; American Association of Variable Star Observers (AAVSO) ; Acton Sky Portal, Acton, MA 01720, USA
Bentley, Rory O.; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Berdyugin, Andrei; Tuorla Observatory, University of Turku, Finland
Berdyugina, Svetlana; Kiepenheuer Institut für Sonnenphysik, Freiburg, Germany
Bergeron, Serge; American Association of Variable Star Observers (AAVSO) ; The Royal Astronomical Society of Canada, Canada
Bieryla, Allyson; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Blain, Michaela G.; Department of Physics and Astronomy, Calvin College, Grand Rapids, MI 49546, USA
Capetillo Blanco, Alicia; American Association of Variable Star Observers (AAVSO)
Bodman, Eva H. L.; School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404, USA
Boucher, Anne; Institute for Research on Exoplanets, Département de physique, Université de Montréal, Montréal, QC H3C 3J7, Canada
Bradley, Mark; American Association of Variable Star Observers (AAVSO)
Brincat, Stephen M.; American Association of Variable Star Observers (AAVSO)
Brink, Thomas G.; Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
Briol, John; American Association of Variable Star Observers (AAVSO)
Brown, David J. A.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Budaj, J.; Astronomical Institute, Slovak Academy of Sciences, The Slovak Republic
Burdanov, Artem ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
Cale, B.; George Mason University, 4400 University Drive, MSN 3F3, Fairfax, VA 22030, USA
Aznar Carbo, Miguel; American Association of Variable Star Observers, Blesa, Spain
Castillo García, R.; American Association of Variable Star Observers (AAVSO) ; Asociación Astronómica Cruz del Norte, Alcobendas, Madrid, Spain ; MPC Z83 Chicharronian Tres Cantos Observatory, Tres Cantos, Madrid, Spain
Clark, Wendy J.; American Association of Variable Star Observers (AAVSO)
Clayton, Geoffrey C. ; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Clem, James L.; Department of Physics, Grove City College, 100 Campus Drive, Grove City, PA 16127, USA
Coker, Phillip H.; American Association of Variable Star Observers (AAVSO)
Cook, Evan M.; Department of Physics and Astronomy, Calvin College, Grand Rapids, MI 49546, USA
Copperwheat, Chris M.; Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, L3 5RF, UK
Curtis, J. L.; Department of Astronomy, Columbia University, 550 West 120th Street, New York, NY 10027, USA
Cutri, R. M.; IPAC, Mail Code 100-22, California Institute of Technology, 1200 E. California Boulevard, Pasadena, CA 91125, USA
Cseh, B.; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Cynamon, C. H.; American Association of Variable Star Observers (AAVSO) ; Howard Astronomical League, Columbia, MD, USA
Daniels, Alex J.; Department of Physics, Grove City College, 100 Campus Drive, Grove City, PA 16127, USA
Davenport, James R. A. ; Department of Physics and Astronomy, Western Washington University, 516 High Street, Bellingham, WA 98225, USA
Deeg, Hans J.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
De Lorenzo, Roberto; Alphard Observatory, Ostuni, MPC Code K82, Italy
de Jaeger, Thomas; Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
Desrosiers, Jean-Bruno; American Association of Variable Star Observers (AAVSO)
Dolan, John; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Dowhos, D. J.; American Association of Variable Star Observers (AAVSO) ; Sierra Stars Observatory Network, Canada
Dubois, Franky; Astrolab IRIS, Verbrandemolenstraat, Ypres, Belgium and Vereniging voor Sterrenkunde, Werkgroep Veranderlijke Sterren, Belgium
Durkee, R.; Shed of Science Observatory, 5213 Washburn Avenue S., Minneapolis, MN 55410, USA
Dvorak, Shawn; American Association of Variable Star Observers (AAVSO)
Easley, Lynn; American Association of Variable Star Observers (AAVSO)
Edwards, N.; The Thacher School, 5025 Thacher Road, Ojai, CA 93023, USA
Ellis, Tyler G.; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Erdelyi, Emery; American Association of Variable Star Observers (AAVSO)
Ertel, Steve; Steward Observatory, Department of Astronomy, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Farfán, Rafael G.; Observatorio Astronómico URANIBORG ; E-41400 Écija, Sevilla, Spain
Farihi, J. ; Physics and Astronomy, University College London, London WC1E 6BT, UK
Filippenko, Alexei V.; Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
Foxell, Emma; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Gandolfi, Davide; Dipartimento di Fisica, Universitá di Torino, via P. Giuria 1, I-10125 Torino, Italy
Giddens, F.; Missouri State University, 901 S National Avenue, Springfield, MO 65897, USA
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
González-Carballo, Juan-Luis; American Association of Variable Star Observers (AAVSO) ; MPC I84 Observatorio Cerro del Viento, Badajoz, Spain
González-Fernández, C.; Institute of Astronomy, University of Cambridge, Madingley Road, CB3 0HA, UK
González Hernández, J. I.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Graham, Keith A.; American Association of Variable Star Observers (AAVSO)
Greene, Kenton A.; Department of Physics and Astronomy, Calvin College, Grand Rapids, MI 49546, USA
Gregorio, J.; Atalaia Group and CROW Observatory Portalegre, Portugal
Hallakoun, Na Ama ; School of Physics and Astronomy and Wise Observatory, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
Hanyecz, Ottó ; MTA CSFK, Konkoly Observatory, Budapest, Hungary ; Loránd Eötvös University, Budapest, Hungary
Harp, G. R.; SETI Institute, 189 Bernardo, Suite 200, Mountain View, CA 94043, USA
Henry, Gregory W.; Center of Excellence in Information Systems, Tennessee State University, Nashville, TN 37209, USA
Herrero, E.; Montsec Astronomical Observatory (OAdM), Institut dÉstudis Espacials de Catalunya (IEEC), Barcelona, Spain
Hildbold, Caleb F.; Department of Physics, Grove City College, 100 Campus Drive, Grove City, PA 16127, USA
Hinzel, D.; American Association of Variable Star Observers (AAVSO)
Holgado, G.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Ignácz, Bernadett; MTA CSFK, Konkoly Observatory, Budapest, Hungary ; Loránd Eötvös University, Budapest, Hungary
Ilyin, Ilya; Leibniz-Institute for Astrophysics Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany
Ivanov, Valentin D.; European Southern Observatory, Ave. Alonso de Córdova 3107, Vitacura, Santiago, Chile ; European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748, Garching bei München, Germany
Jehin, Emmanuel ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Jermak, Helen E.; Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, L3 5RF, UK
Johnston, Steve; American Association of Variable Star Observers (AAVSO)
Kafka, S.; American Association of Variable Star Observers (AAVSO)
Kalup, Csilla; MTA CSFK, Konkoly Observatory, Budapest, Hungary ; Loránd Eötvös University, Budapest, Hungary
Kaspi, Shai; School of Physics and Astronomy and Wise Observatory, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
Kennedy, Grant M. ; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Kiefer, F.; Institut d'Astrophysique de Paris, UMR7095 CNRS, Université Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France
Kielty, C. L.; Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8W 3P2, Canada
Kessler, Dennis; Ott Observatory, Nederland, CO 80466, USA
Kiiskinen, H.; Hankasalmi Observatory, Hankasalmi, Finland
Killestein, T. L.; American Association of Variable Star Observers (AAVSO) ; British Astronomical Association, Variable Star Section, UK
King, Ronald A.; American Association of Variable Star Observers (AAVSO)
Kollar, V.; Astronomical Institute, Slovak Academy of Sciences, The Slovak Republic
Korhonen, H. ; Dark Cosmology Centre, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
Kotnik, C.; American Association of Variable Star Observers (AAVSO)
Könyves-Tóth, Réka; MTA CSFK, Konkoly Observatory, Budapest, Hungary ; Loránd Eötvös University, Budapest, Hungary
Kriskovics, Levente ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Krumm, Nathan; American Association of Variable Star Observers (AAVSO)
Krushinsky, Vadim; Kourovka observatory, Ural Federal University, Russia
Kundra, E.; Astronomical Institute, Slovak Academy of Sciences, The Slovak Republic
Lachapelle, Francois-Rene; Institute for Research on Exoplanets, Département de physique, Université de Montréal, Montréal, QC H3C 3J7, Canada
LaCourse, D.; Amateur Astronomer, USA
Lake, P.; American Association of Variable Star Observers (AAVSO) ; Astronomy Society Victoria, Australia ; iTelescope.net, Siding Spring, Australia
Lam, Kristine; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Lamb, Gavin P. ; Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, L3 5RF, UK
Lane, Dave; Saint Mary's University, The Royal Astronomical Society of Canada, Canada
Lau, Marie Wingyee ; Department of Astronomy and Astrophysics, UCO/Lick Observatory, University of California, 1156 High Street, Santa Cruz, CA 95064, USA
Lewin, Pablo; American Association of Variable Star Observers (AAVSO) ; The Maury Lewin Memorial Astronomical Observatory, Glendora, CA, USA
Lintott, Chris ; Dept. Of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford, OX1 3RH, UK
Lisse, Carey ; Space Exploration Sector, JHU-APL, 11100 Johns Hopkins Road, Laurel, MD 20723, USA
Logie, Ludwig; Astrolab IRIS, Verbrandemolenstraat, Ypres, Belgium and Vereniging voor Sterrenkunde, Werkgroep Veranderlijke Sterren, Belgium
Longeard, Nicolas; Observatoire de Strasbourg, 11, rue de l'Université, F-67000, Strasbourg, France
Lopez Villanueva, M.; Alain-American Association of Variable Star Observers, Le Cannet, France
Whit Ludington, E.; American Association of Variable Star Observers (AAVSO) ; Caliche Observatory, Pontotoc, TX, USA
Mainzer, A.; NASA Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
Malo, Lison; Département de physique and Observatoire du Mont-Mégantic, Université de Montréal, Montréal, QC H3C 3J7, Canada ; Institute for Research on Exoplanets, Université de Montréal, Montréal, QC H3C 3J7, Canada
Maloney, Chris; American Association of Variable Star Observers (AAVSO)
Mann, A.; Department of Astronomy, Columbia University, 550 West 120th Street, New York, NY 10027, USA
Mantero, A.; American Association of Variable Star Observers (AAVSO)
Marengo, Massimo ; Department of Physics and Astronomy, 12 Physics Hall, Iowa State University, Ames, IA 50011, USA
Marchant, Jon; Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, L3 5RF, UK
Martínez González, M. J.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Masiero, Joseph R. ; NASA Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, MS 183-301, Pasadena, CA 91109, USA
Mauerhan, Jon C.; Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
McCormac, James; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
McNeely, Aaron; University of Notre Dame QuarkNet Center, Notre Dame, IN, USA ; American Association of Variable Star Observers (AAVSO)
Meng, Huan Y. A. ; Steward Observatory, Department of Astronomy, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Miller, Mike; American Association of Variable Star Observers (AAVSO) ; Society of Astronomical Sciences, USA
Molnar, Lawrence A. ; Department of Physics and Astronomy, Calvin College, Grand Rapids, MI 49546, USA
Morales, J. C.; Institut de Ciències de l'Espai (IEEC-CSIC), Carrer de Can Magrans s/n, E-08193 Barcelona, Spain
Morris, Brett M. ; Astronomy Department, University of Washington, Seattle, WA 98195, USA
Muterspaugh, Matthew W.; Center of Excellence in Information Systems, Tennessee State University, Nashville, TN 37209, USA ; College of Life and Physical Sciences, Tennessee State University, Nashville, TN 37209, USA
Nespral, David; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Nugent, C. R.; Caltech/IPAC, Pasadena, CA 91125, USA
Nugent, Katherine M.; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Odasso, A.; American Association of Variable Star Observers (AAVSO) ; Sierra Stars Observatory Network, Canada
O'Keeffe, Derek; American Association of Variable Star Observers (AAVSO) ; Ballyhoura Observatory, Ireland
Oksanen, A.; Hankasalmi Observatory, Hankasalmi, Finland
O'Meara, John M. ; Department of Physics, Saint Michael's College, One Winooski Park, Colchester, VT 05439, USA
Ordasi, András; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Osborn, Hugh; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Aix Marseille Univ, CNRS, LAM, Laboratoire d'Astrophysique de Marseille, Marseille, France
Ott, John J.; American Association of Variable Star Observers (AAVSO)
Parks, J. R.; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
Rodriguez Perez, Diego; American Association of Variable Star Observers (AAVSO)
Petriew, Vance; American Association of Variable Star Observers (AAVSO) ; The Royal Astronomical Society of Canada, Canada
Pickard, R.; BAA Variable Star Section, UK
Pál, András ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Plavchan, P.; George Mason University, 4400 University Drive, MSN 3F3, Fairfax, VA 22030, USA
Pollacco, Don; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Pozo Nuñez, F. ; Department of Physics, Faculty of Natural Sciences, University of Haifa, Haifa 31905, Israel ; Haifa Research Center for Theoretical Physics and Astrophysics, Haifa 31905, Israel
Pozuelos Romero, Francisco José ; Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Belgium
Rau, Steve; Astrolab IRIS, Verbrandemolenstraat, Ypres, Belgium and Vereniging voor Sterrenkunde, Werkgroep Veranderlijke Sterren, Belgium
Redfield, Seth ; Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA
Relles, Howard; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Ribas, Ignasi; Institut de Ciències de l'Espai (IEEC-CSIC), Carrer de Can Magrans s/n, E-08193 Barcelona, Spain
Richards, Jon; Allen Telescope Array, Hat Creek Radio Observatory, 43321 Bidwell Road, Hat Creek, CA 96040, USA ; SETI Institute, 189 Bernardo, Mountain View, CA 94043, USA
Saario, Joonas L. O. ; Koninklijke Sterrenwacht van België, Ringlaan 3, B-1180 Brussels, Belgium ; Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
Safron, Emily J. ; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Sallai, J. Martin; MTA CSFK, Konkoly Observatory, Budapest, Hungary ; Loránd Eötvös University, Budapest, Hungary
Sárneczky, Krisztián ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Schaefer, Bradley E.; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 USA
Schumer, Clea F.; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Schwartzendruber, Madison; University of Notre Dame QuarkNet Center, Notre Dame, IN, USA
Siegel, Michael H.; The Pennsylvania State University, 525 Davey Lab, University Park, PA 16801 USA
Siemion, Andrew P. V.; University of California, Berkeley, USA ; Radboud University, The Netherlands ; SETI Institute, Mountain View, CA, USA
Simmons, Brooke D. ; Center for Astrophysics and Space Sciences (CASS), Department of Physics, University of California, San Diego, CA 92093, USA
Simon, Joshua D.; Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA
Simón-Díaz, S.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Sitko, Michael L.; Department of Physics, University of Cincinnati, Cincinnati, OH 45221, USA ; Center for Extrasolar Planetary Systems, Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301, USA
Socas-Navarro, Hector; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Sódor, Á.; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Starkey, Donn; DeKalb Observatory, MPC H63, Auburn, IN, 46706, USA
Steele, Iain A.; Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, L3 5RF, UK
Stone, Geoff ; American Association of Variable Star Observers (AAVSO) ; Sierra Remote Observatories, 44325 Alder Heights Road, Auberry, CA 93602, USA
Strassmeier, Klaus G.; Leibniz-Institute for Astrophysics Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany
Street, R. A.; Las Cumbres Observatory, Suite 102, 6740 Cortona Drive, Goleta, CA 93117, USA
Sullivan, Tricia; Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, L3 5RF, UK
Suomela, J.; Clayhole Observatory, Jokela, Finland
Swift, J. J.; The Thacher School, 5025 Thacher Road, Ojai, CA 93023, USA
Szabó, Gyula M.; ELTE Eötvös Loránd University, Gothard Astrophysical Observatory, Szombathely, Hungary
Szabó, Róbert ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Szakáts, Róbert ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Szalai, Tamás; Department of Optics and Quantum Electronics, University of Szeged, H-6720 Szeged, Dom ter 9, Hungary
Tanner, Angelle M.; Mississippi State University, Department of Physics & Astronomy, Hilbun Hall, Starkville, MS 39762, USA
Toledo-Padrón, B.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Tordai, Tamás; Hungarian Astronomical Association, Budapest, Hungary
Triaud, Amaury H. M. J.; School of Physics & Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Turner, Jake D.; Department of Astronomy, University of Virginia, Charlottesville, VA 22904, USA
Ulowetz, Joseph H.; American Association of Variable Star Observers (AAVSO)
Urbanik, Marian; American Association of Variable Star Observers (AAVSO) ; Kysuce Observatory, Slovak Republic
Vanaverbeke, Siegfried; Astrolab IRIS, Verbrandemolenstraat, Ypres, Belgium and Vereniging voor Sterrenkunde, Werkgroep Veranderlijke Sterren, Belgium ; Center for Mathematical Plasma Astrophysics, University of Leuven, Belgium
Vanderburg, Andrew; Department of Astronomy, The University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA
Vida, Krisztián ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
Vietje, Brad P.; American Association of Variable Star Observers (AAVSO)
Vinkó, József ; MTA CSFK, Konkoly Observatory, Budapest, Hungary
von Braun, K.; Lowell Observatory, Flagstaff, AZ 86001, USA
Waagen, Elizabeth O.; American Association of Variable Star Observers (AAVSO)
Walsh, Dan; University of Notre Dame QuarkNet Center, Notre Dame, IN, USA
Watson, Christopher A.; Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN, Belfast, UK
Weir, R. C.; American Association of Variable Star Observers (AAVSO)
Wenzel, Klaus; Bundesdeutsche Arbeitsgemeinschaft für veränderliche Sterne, Germany
Westendorp Plaza, C.; Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain ; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
Williamson, Michael W.; Center of Excellence in Information Systems, Tennessee State University, Nashville, TN 37209, USA
Wright, Jason T. ; Department of Astronomy & Astrophysics, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA ; Center for Exoplanets and Habitable Worlds, The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA
Wyatt, M. C.; Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Zheng, Weikang; Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
Zsidi, Gabriella; MTA CSFK, Konkoly Observatory, Budapest, Hungary ; Loránd Eötvös University, Budapest, Hungary)
Ballesteros F. J., Arnalte-Mur P., Fernandez-Soto A. and Martinez V. J. 2018 MNRAS 473 L21
Barbary K. 2016 SEP: Source Extractor as a library http://joss.theoj.org/papers/10.21105/joss.00058
Bertin E. and Arnouts S. 1996 A&AS 117 393
Bessell M. S. 1990 PASP 102 1181
Bodman E. H. L. and Quillen A. 2016 ApJL 819 L34
Borucki W. J., Koch D., Basri G. et al 2010 Sci 327 977
Boyajian T. S., LaCourse D. M., Rappaport S. A. et al 2016 MNRAS 457 3988
Brown T. M., Baliber N., Bianco F. B. et al 2013 PASP 125 1031
Budaj J., Kocifaj M., Salmeron R. and Hubeny I. 2015 MNRAS 454 2
Castelli F. and Kurucz R. L. 2004 arXiv:astro-ph/0405087
Claret A. and Bloemen S. 2011 A&A 529 A75
Collins K. A., Kielkopf J. F., Stassun K. G. and Hessman F. V. 2017 AJ 153 77
Colome J. and Ribas I. 2006 IAUSS 6 11
Craig M. W., Crawford S. M., Deil C. et al 2015 ccdproc: CCD data reduction software Astrophysics Source Code Library ascl:1510.007
Curtis J. L. 2017 AJ 153 275
Cutri R. M., Mainzer A., Conrow T. et al 2015 Explanatory Supplement to the NEOWISE Data Release Products, Tech. Rep. http://wise2.ipac.caltech.edu/docs/release/neowise/expsup
Deeg H. J., Alonso R., Nespral D. and Boyajian T. 2018 A&A in press (arXiv:1801.00720)
Deirmendjian D. 1964 ApOpt 3 187
Dorschner J., Begemann B., Henning T., Jaeger C. and Mutschke H. 1995 A&A 300 503
Faber S. M., Phillips A. C., Kibrick R. I. et al 2003 Proc. SPIE 4841 1657
Filippenko A. V. 1982 PASP 94 715
Foreman-Mackey D., Hogg D. W., Lang D. and Goodman J. 2013 PASP 125 306
Foukal P. 2017a ApJL 842 L3
Foukal P. 2017b RNAAS 1 52
Gillon M., Jehin E., Magain P. et al 2011 EPJWC 11 06002
Harp G. R., Richards J., Shostak S. et al 2016 ApJ 825 155
Heiles C. 2000 AJ 119 923
Hippke M., Angerhausen D., Lund M. B., Pepper J. and Stassun K. G. 2016 ApJ 825 73
Jäger C., Dorschner J., Mutschke H., Posch T. and Henning T. 2003 A&A 408 193
Jager C., Mutschke H. and Henning T. 1998 A&A 332 291
Jehin E., Gillon M., Queloz D. et al 2011 Msngr 145 2
Johnson P. B. and Christy R. W. 1974 PhRvB 9 5056
Katz J. I. 2017 MNRAS 471 3680
Kiefer F., Lecavelier des Etangs A., Vidal-Madjar A. et al 2017 A&A 608 A132
Koike C., Kaito C., Yamamoto T. et al 1995 Icar 114 203
Lisse C. M., Sitko M. L. and Marengo M. 2015 ApJL 815 L27
Makarov V. V. and Goldin A. 2016 ApJ 833 78
Mandel K. and Agol E. 2002 ApJL 580 L171
Marengo M., Hulsebus A. and Willis S. 2015 ApJL 814 L15
Mauerhan J., Williams G. G., Smith N. et al 2014 MNRAS 442 1166
McCormac J., Skillen I., Pollacco D. et al 2014 MNRAS 438 3383
Meng H. Y. A., Rieke G., Dubois F. et al 2017 ApJ 847 131
Metzger B. D., Shen K. J. and Stone N. 2017 MNRAS 468 4399
Miller J. S. and Stone R. P. S. 2013 Lick Obs. Tech. Rep. 66
Molnar L. A., Van Noord D. M., Kinemuchi K. et al 2017 ApJ 840 1
Montet B. T. and Simon J. D. 2016 ApJL 830 L39
Neslušan L. and Budaj J. 2017 A&A 600 A86
Oke J. B., Cohen J. G., Carr M. et al 1995 PASP 107 375
Pecaut M. J. and Mamajek E. E. 2013 ApJS 208 9
Pecaut M. J., Mamajek E. E. and Bubar E. J. 2012 ApJ 746 154
Rockosi C., Stover R., Kibrick R. et al 2010 Proc. SPIE 7735 77350R
Sacco G., Ngo L. and Modolo J. 2017 arXiv:1710.01081
Savage B. D. and Mathis J. S. 1979 ARA&A 17 73
Schaefer B. E. 2016 ApJL 822 L34
Schmidt G. D., Elston R. and Lupie O. L. 1992 AJ 104 1563
Serkowski K., Mathewson D. S. and Ford V. L. 1975 ApJ 196 261
Sheikh M. A., Weaver R. L. and Dahmen K. A. 2016 PhRvL 117 261101
Silverman J. M., Foley R. J., Filippenko A. V. et al 2012 MNRAS 425 1789
Simon J. D., Shappee B. J., Pojmanski G. et al 2017 arXiv:1708.07822
Sing D. K., Wakeford H. R., Showman A. P. et al 2015 MNRAS 446 2428
Słowikowska A., Krzeszowski K., Żejmo M., Reig P. and Steele I. 2016 MNRAS 458 759
Steele I. A., Copperwheat C. M., Jermak H. E., Kennedy G. M. and Lamb G. P. 2018 MNRAS 473 L26
Stetson P. B. 1987 PASP 99 191
Thompson M. A., Scicluna P., Kemper F. et al 2016 MNRAS 458 L39
Vogt S. S., Allen S. L., Bigelow B. C. et al 1994 Proc. SPIE 2198 362
Wallace L., Hinkle K. H., Livingston W. C. and Davis S. P. 2011 ApJS 195 6
Warren S. G. and Brandt R. E. 2008 JGRD 113 D14220
Wright J. T. and Eastman J. D. 2014 PASP 126 838
Wright J. T. and Sigursson S. 2016 ApJL 829 L3
Wyatt M. C., van Lieshout R., Kennedy G. M. and Boyajian T. S. 2018 MNRAS 473 5286
