Kinematics of Cataclysmic Variables in the Solar Neighborhood in the Gaia Era

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dc.authoridCANBAY, Remziye/0000-0003-2575-9892
dc.authoridBilir, Selcuk/0000-0003-3510-1509
dc.contributor.authorCanbay, Remziye
dc.contributor.authorAk, Tansel
dc.contributor.authorBilir, Selcuk
dc.contributor.authorSoydugan, Faruk
dc.contributor.authorEker, Zeki
dc.date.accessioned2025-05-29T02:57:20Z
dc.date.available2025-05-29T02:57:20Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractUsing high-precision astrometric data from Gaia DR3 and updated systemic velocities from the literature, the kinematical properties of cataclysmic variables (CVs) were investigated. By constraining the data according to the total space velocity error and Galactic population class, a reliable sample of data was obtained. Nonmagnetic CVs located in the thin disk have been found to have a total space velocity dispersion of sigma(nu) = 46.33 +/- 4.23 km s(-1), indicating that the thin disk CVs with a mean kinematical age of tau = 3.95 +/- 0.75 Gyr are much younger than the local thin disk of the Galaxy with tau similar to 6-9 Gyr. Total space velocity dispersions of nonmagnetic CVs belonging to the thin disk component of the Galaxy were found to be sigma(nu) = 47.67 +/- 3.94 and sigma(nu) = 44.43 +/- 4.33 km s(-1) for the systems below and above the orbital period gap, respectively, corresponding to kinematical ages of tau = 4.19 +/- 0.71 and tau = 3.61 +/- 0.74 Gyr. gamma velocity dispersions of the thin disk CVs below and above the gap were obtained sigma(gamma) = 27.52 +/- 2.28 and sigma(gamma) = 25.65 +/- 2.44 km s(-1), respectively. This study also shows that the orbital period is decreasing with increasing age, as expected from the standard theory. The age-orbital period relation for nonmagnetic thin disk CVs was obtained as dP/dt = -2.09(+/- 0.22) x 10(-5) s yr(-1). However, a significant difference could not be found between the gamma velocity dispersions of the systems below and above the gap, which were calculated to be sigma(gamma) = 27.52 +/- 2.28 and sigma(gamma) = 25.65 +/- 2.44 km s(-1), respectively.
dc.description.sponsorshipScientific and Technological Research Council (TUBIdot;TAK) [119F072]; Istanbul University [NAP-33768]
dc.description.sponsorshipThe authors thank the anonymous referee for his/her helpful comments that improved the quality of the manuscript. This study has partly been supported by the Scientific and Technological Research Council (TUB & Idot;TAK) 119F072. This work has been supported in part by Istanbul University: project number NAP-33768. This study is a part of the PhD thesis of Remziye Canbay. This research made use of NASA's (National Aeronautics and Space Administration) Astrophysics Data System and the SIMBAD Astronomical Database, operated at CDS, Strasbourg, France, and the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This study used data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia) and processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC was provided by national institutions, particularly institutions participating in the Gaia Multilateral Agreement.
dc.identifier.doi10.3847/1538-3881/ad9eb6
dc.identifier.issn0004-6256
dc.identifier.issn1538-3881
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85216355610
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3847/1538-3881/ad9eb6
dc.identifier.urihttps://hdl.handle.net/20.500.12428/30016
dc.identifier.volume169
dc.identifier.wosWOS:001402782500001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofAstronomical Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250529
dc.subjectGalactic Model Parameters
dc.subjectAbsolute Magnitude Calibration
dc.subjectOrbital Period Distribution
dc.subjectAngular-Momentum Loss
dc.subjectDigital Sky Survey
dc.subjectMagnetic Braking
dc.subjectEvolutionary Status
dc.subjectHigh-Latitudes
dc.subjectSpace Density
dc.subjectThick Disk
dc.titleKinematics of Cataclysmic Variables in the Solar Neighborhood in the Gaia Era
dc.typeArticle

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