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

  title={A Possible Alignment Between the Orbits of Planetary Systems and their Visual Binary Companions},
  author={Sam Christian and Andrew M. Vanderburg and Juliette C. Becker and Daniel A. Yahalomi and Logan A. Pearce and George Zhou and Karen A. Collins and Adam L. Kraus and Keivan G. Stassun and Zoe de Beurs and George R. Ricker and Roland K. Vanderspek and David W. Latham and Joshua N. Winn and Sara Seager and Jon M. Jenkins and Lyu Abe and Karim Agabi and Pedro J. Amado and David Baker and Khalid Barkaoui and Zouhair Benkhaldoun and Paul B Benni and J. Berberian and Perry L. Berlind and Allyson Bieryla and Emma Esparza-Borges and Michael Bowen and Peyton Brown and Lars A. Buchhave and Christopher J. Burke and Marco Buttu and Charles Cadieux and Douglas A. Caldwell and David Charbonneau and Nikita Chazov and Sudhish Chimaladinne and Kevin I. Collins and Deven Combs and Dennis M. Conti and Nicolas Crouzet and Jerome P. de Leon and Shila Deljookorani and Brendan Diamond and Ren{\'e} Doyon and Diana Dragomir and Georgina Dransfield and Zahra Essack and Phil Evans and Akihiko Fukui and Tianjun Gan and Gilbert A. Esquerdo and Micha{\"e}l Gillon and Eric Girardin and Pere Guerra and Tristan Guillot and E.K.K. Habich and Andreea I. Henriksen and Nora Hoch and Keisuke Isogai and Emmanuel Jehin and Eric L. N. Jensen and Marshall C. Johnson and John H. Livingston and John F. Kielkopf and Kingsley Kim and Kiyoe Kawauchi and Vadim Krushinsky and Veronica Kunzle and Didier Laloum and Dominic J St Leger and Pablo Lewin and Franco Mallia and Bob Massey and Mayuko Mori and K. K. Mcleod and Djamel M'ekarnia and Ismael Mireles and Nikolay N. Mishevskiy and Motohide Tamura and Felipe Murgas and Norio Narita and Ram{\'o}n Naves and Peter F. Nelson and Hugh P. Osborn and Enric Palle and Hannu Parviainen and Peter P. Plavchan and Francisco J. Pozuelos and Markus Rabus and Howard M. Relles and Cristina Rodr'iguez L'opez and Samuel N. Quinn and François-Xavier Schmider and Joshua E. Schlieder and Richard P. Schwarz and Avi Shporer and Laurie Sibbald and Gregor Srdo{\vc} and Caitlin Stibbards and Hannah Stickler and Olga Su{\'a}rez and Christopher Stockdale and T. G. Tan and Yuka Terada and Amaury H. M. J. Triaud and Ren{\'e} Tronsgaard and William C. Waalkes and Gavin Wang and Noriharu Watanabe and Marie-Sainte Wenceslas and Geof Wingham and Justin M. Wittrock and Carl A. Ziegler},
  journal={The Astronomical Journal},
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… 

Stellar Obliquities in Exoplanetary Systems

The rotation of a star and the revolutions of its planets are not necessarily aligned. This article reviews the measurement techniques, key findings, and theoretical interpretations related to the

The Orbital Architecture of Qatar-6: A Fully Aligned Three-body System?

The evolutionary history of an extrasolar system is, in part, fossilized through its planets’ orbital orientations relative to the host star’s spin axis. However, spin–orbit constraints for warm

The McDonald Accelerating Stars Survey: Architecture of the Ancient Five-planet Host System Kepler-444

We present the latest and most precise characterization of the architecture for the ancient (≈11 Gyr) Kepler-444 system, which is composed of a K0 primary star (Kepler-444 A) hosting five transiting

On Tidal Distances between Components of Wide Binary Stars in the Pleiades

Abstract The paper estimates the tidal distances $$|\xi_{c,1,2}|$$ between the components of wide binary stars (BS) in the Pleiades. We used data on the parameters of the Pleiades cluster and wide

Independent Validation of the Temperate Super-Earth HD 79211 b using HARPS-N

We present high-precision radial velocities (RVs) from the HARPS-N spectrograph for HD 79210 and HD 79211, two M0V members of a gravitationally bound binary system. We detect a planet candidate with

Observing exoplanets from Antarctica in two colours: set-up and operation of ASTEP+

On December 2021, a new camera box for two-colour simultaneous visible photometry was successfully installed on the ASTEP telescope at the Concordia station in Antarctica. The new focal box offers

Observation scheduling and automatic data reduction for the Antarctic Telescope, ASTEP+

The possibility to observe transiting exoplanets from Dome C in Antarctica provides immense benefits: stable weather conditions, limited atmospheric turbulence, and a night that lasts almost three


The dynamical influence of binary companions is expected to profoundly influence planetary systems. However, the difficulty of identifying planets in binary systems has left the magnitude of this

Orbital Parameter Determination for Wide Stellar Binary Systems in the Age of Gaia

The orbits of binary stars and planets, particularly eccentricities and inclinations, encode the angular momentum within these systems. Within stellar multiple systems, the magnitude and

A Catalog of Wide Binary and Multiple Systems of Bright Stars from Gaia-DR2 and the Virtual Observatory

Binary and multiple stars have long provided an effective empirical method of testing stellar formation and evolution theories. In particular, the existence of wide binary systems (separations

Shrinking Binary and Planetary Orbits by Kozai Cycles with Tidal Friction

At least two arguments suggest that the orbits of a large fraction of binary stars and extrasolar planets shrank by 1-2 orders of magnitude after formation: (1) the physical radius of a star shrinks

Planet Migration and Binary Companions: The Case of HD 80606b

The exosolar planet HD 80606b has a highly eccentric (e = 0.93) and tight (a = 0.47 AU) orbit. We study how it might arrive at such an orbit and how it has avoided being tidally circularized until

Planetary system disruption by Galactic perturbations to wide binary stars

Numerical simulations demonstrate that the variable nature of wide binary star orbits dramatically reshaping the planetary systems they host, typically billions of years after formation, and suggest that most isolated giant exoplanet systems harbour additional distant, still undetected planets.

Orbital migration of the planetary companion of 51 Pegasi to its present location

THE recent discovery1 and confirmation2 of a possible planetary companion orbiting the solar-type star 51 Pegasi represent a breakthrough in the search for extrasolar planetary systems. Analysis of

A primordial origin for misalignments between stellar spin axes and planetary orbits

It is suggested that in the absence of strong coupling between the angular momentum of the disk and that of the host star, or of sufficient dissipation that acts to realign the stellar spin axis and the planetary orbits, the fraction of planetary systems whose angular momentum vectors will be commensurate with the rate of primordial stellar multiplicity.

Effects of unseen additional planetary perturbers on compact extrasolar planetary systems

Motivated by the large number of compact extrasolar planetary systems discovered by the Kepler Mission, this paper considers perturbations due to possible additional outer planets. The discovered

A Pan-STARRS 1 study of the relationship between wide binarity and planet occurrence in the Kepler field

The NASA Kepler mission has revolutionised time-domain astronomy and has massively expanded the number of known extrasolar planets. However, the effect of wide multiplicity on exoplanet occurrence