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    A Possible Alignment Between the Orbits of Planetary Systems and their Visual Binary Companions

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    Date
    2022
    Author
    Christian, Sam
    Vanderburg, Andrew
    Becker, Juliette
    Yahalomi, Daniel
    Pearce, Logan
    Zhou, George
    Collins, Karen
    Kraus, Adam
    Stassun, Keivan
    Beurs, Zoe de
    Ricker, George
    Vanderspek, Roland
    Latham, David
    Winn, Joshua
    Seager, S.
    Jenkins, Jon
    Abe, Lyu
    Agabi, Karim
    Amado, Pedro
    Baker, David
    Barkaoui, Khalid
    Benkhaldoun, Zouhair
    Benni, Paul
    Berberian, John
    Berlind, Perry
    Bieryla, Allyson
    Esparza Borges, Emma
    Bowen, Michael
    Brown, Peyton
    Buchhave, Lars
    Burke, Christopher
    Buttu, Marco
    Cadieux, Charles
    Caldwell, Douglas
    Charbonneau, David
    Chazov, Nikita
    Chimaladinne, Sudhish
    Collins, Kevin
    Combs, Deven
    Conti, Dennis
    Crouzet, Nicolas
    Leon, Jerome de
    Deljookorani, Shila
    Diamond, Brendan
    Doyon, René
    Dragomir, Diana
    Dransfield, Georgina
    Essack, Zahra
    Evans, Phil
    Fukui, Akihiko
    Gan, Tianjun
    Esquerdo, Gilbert
    Gillon, Michaël
    Girardin, Eric
    Guerra, Pere
    Guillot, Tristan
    Habich, Eleanor
    Henriksen, Andreea
    Hoch, Nora
    Isogai, Keisuke
    Jehin, Emmanuël
    Jensen, Eric
    Johnson, Marshall
    Livingston, John
    Kielkopf, John
    Kim, Kingsley
    Kawauchi, Kiyoe
    Krushinsky, Vadim
    Kunzle, Veronica
    Laloum, Didier
    Leger, Dominic
    Lewin, Pablo
    Mallia, Franco
    Massey, Bob
    Mori, Mayuko
    McLeod, Kim
    Mékarnia, Djamel
    Mireles, Ismael
    Mishevskiy, Nikolay
    Tamura, Motohide
    Murgas, Felipe
    Narita, Norio
    Naves, Ramon
    Nelson, Peter
    Osborn, Hugh
    Palle, Enric
    Parviainen, Hannu
    Plavchan, Peter
    Pozuelos, Francisco
    Rabus, Markus
    Relles, Howard
    Rodríguez López, Cristina
    Quinn, Samuel
    Schmider, Francois
    Schlieder, Joshua
    Schwarz, Richard
    Shporer, Avi
    Sibbald, Laurie
    Srdoc, Gregor
    Stibbards, Caitlin
    Stickler, Hannah
    Suarez, Olga
    Stockdale, Chris
    Tan, Thiam
    Terada, Yuka
    Triaud, Amaury
    Tronsgaard, Rene
    Waalkes, William
    Wang, Gavin
    Watanabe, Noriharu
    Wenceslas, Marie
    Wingham, Geof
    Wittrock, Justin
    Ziegler, Carl
    Publisher
    The Astronomical Journal
    Description
    Artículo de publicación SCOPUS - WOS
    Metadata
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    Abstract
    Astronomers do not have a complete picture of the effects of wide-binary companions (semimajor axes greater than 100 au) on the formation and evolution of exoplanets. We investigate these effects using new data from Gaia Early Data Release 3 and the Transiting Exoplanet Survey Satellite mission to characterize wide-binary systems with transiting exoplanets. We identify a sample of 67 systems of transiting exoplanet candidates (with well-determined, edge-on orbital inclinations) that reside in wide visual binary systems. We derive limits on orbital parameters for the wide-binary systems and measure the minimum difference in orbital inclination between the binary and planet orbits. We determine that there is statistically significant difference in the inclination distribution of wide-binary systems with transiting planets compared to a control sample, with the probability that the two distributions are the same being 0.0037. This implies that there is an overabundance of planets in binary systems whose orbits are aligned with those of the binary. The overabundance of aligned systems appears to primarily have semimajor axes less than 700 au. We investigate some effects that could cause the alignment and conclude that a torque caused by a misaligned binary companion on the protoplanetary disk is the most promising explanation.
    URI
    http://repositoriodigital.ucsc.cl/handle/25022009/3035
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    file:///D:/Downloads/Christian_2022_AJ_163_207.pdf
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