J/AJ/170/270ivo://CDS.VizieR/J/AJ/170/270CDSKane S.R.Li Z.Hill M.L.D'Angiolillo S.Fulton B.J.Howard A.W.2026-07-31T08:41:54Z2026-07-31T09:31:52ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frexoplanetsmultiple-starsradial-velocityvisible-astronomyspectroscopyinfrared-astronomyGiven the vast number of stars that exist within binary systems, it remains important to explore the effect of binary star environments on the formation and evolution of exoplanetary systems. Nearby binaries provide opportunities to characterize their properties and orbits through a combination of radial velocities, astrometry, and direct imaging. Eta Cassiopeiae is a bright, well-known binary system for which recent observations have provided greatly improved stellar masses and orbital parameters. We present additional radial velocity data that are used to perform an injection-recovery analysis for potential planetary signatures. We further provide a detailed dynamical study that explores the viability of planetary orbits throughout the system. Our combined analysis shows that giant planets are significantly ruled out for the system, and indeed no planetary orbits are viable beyond ~8AU of the primary star. However, terrestrial planets may yet exist within the habitable zone where orbits can remain long-term stable. We discuss the implications of these results, highlighting the effect of wide binary companions on giant planet formation, and the consequences for occurrence rates and planetary habitability.2025AJ....170..270Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/270CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/ApJ/716/1336 : Stability analysis of single-planet (Kopparapu+, 2010)J/ApJ/746/101 : Diameters and temperatures of AFG stars (Boyajian+, 2012)J/ApJ/745/19 : Binary systems in Taurus-Auriga (Kraus+, 2012)J/ApJS/210/5 : The twenty-five year Lick planet search (Fischer+, 2014)J/MNRAS/452/2127 : Fundamental param. of Kepler stars (Silva Aguirre+, 2015)J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)J/AJ/154/107 : California-Kepler Survey (CKS). I. 1305 stars (Petigura+, 2017)J/AJ/154/184 : Multiplicity of RV exoplanet host stars (Wittrock+, 2017)J/AJ/156/264 : California-Kepler Survey. VII. Planet radius gap (Fulton+, 2018)J/AJ/160/81 : 20 years of Beta CVn HIRES/APF radial velocities (Kane+, 2020)J/MNRAS/496/851 : Planet candidates from K2 Campaigns 1-13 (Wittenmyer+, 2020)J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)J/AJ/161/130 : List of 100 targets for NEID Earth Twin Survey (Gupta+, 2021)J/AJ/161/134 : Survey of stellar & planetary comp. within 25pc (Hirsch+, 2021)J/ApJS/255/8 : The California Legacy Survey. I. Planet cat. (Rosenthal+, 2021)J/AJ/165/34 : Habitable Zone Exoplanets from NASA Exoplanet Arch. (Hill+, 2023)J/AJ/165/176 : Doppler constraints comp. to Sun-like stars (Laliotis+, 2023)J/ApJS/272/30 : Habitable Worlds Observatory (HWO): 164 targets (Harada+, 2024)J/AJ/167/139 : HPIC catalog & potential contaminants from Gaia (Tuchow+, 2024)J/AJ/170/52 : NETS. II. RV & astrometry of 7 star systems (Giovinazzi+, 2025)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/270https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/270http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/270https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/270https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/270http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/270GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/170/270/table1HD 4614 radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstInstrument (1)meta.id;instrcharMJD[9969/20846] Modified Barycentric Julian Date; BJD-2440000 (Date)dtime.epochdoubleRVel[-71.39/8460.7] Radial velocitym/sspect.dopplerVelocfloate_RVel[0.3/46.15] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloat