Cataclysmic variable evolution and the white dwarf mass problem: A Review

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dc.contributor.authorZorotovic, Mónica
dc.contributor.authorSchreiber, Matthias R.
dc.date.accessioned2021-11-22T18:37:37Z
dc.date.available2021-11-22T18:37:37Z
dc.date.issued2020
dc.description.abstractAlthough the theory of cataclysmic variable (CV) evolution is able to explain several observational aspects, strong discrepancies have existed for decades between observations and theoretical predictions of the orbital period distribution, the location of the minimum period, and the space density of CVs. Moreover, it has been shown in the last decade that the average white dwarf (WD) mass observed in CVs is significantly higher than the average mass in single WDs or in detached progenitors of CVs, and that there is an absence of helium-core WDs in CVs which is not observed in their immediate detached progenitors. This highly motivated us to revise the theory of CV formation and evolution. A new empirical model for angular momentum loss in CVs was developed in order to explain the high average WD mass observed and the absence of systems with helium-core WDs. This model seems to help, at the same time, with all of the above mentioned disagreements between theory and observations. Moreover, it also provides us with a very likely explanation for the existence of low-mass WDs without a companion. Here we will review the standard model for CV evolution and the disagreements that have existed for decades between simulations and observations with their possible solutions and/or improvements. We will also summarize the recently confirmed disagreement related to the average WD mass and the fraction of helium-core WDs among CVs, as well as the development of an empirical model that allows us to solve all the disagreements, discussing the physics that could be involved.en_ES
dc.facultadFacultad de Cienciasen_ES
dc.identifier.citationZorotovic, M., & Schreiber, M. R. (2020). Cataclysmic variable evolution and the white dwarf mass problem: A Review. Advances in Space Research, 66(5), 1080-1089.en_ES
dc.identifier.doihttps://doi.org/10.1016/j.asr.2019.08.044
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/2712
dc.language.isoenen_ES
dc.publisherElsevieren_ES
dc.sourceAdvances in Space Researchen_ES
dc.subjectBINARIES: CLOSENOVAEen_ES
dc.subjectCATACLYSMIC VARIABLESen_ES
dc.subjectWHITE DWARFSen_ES
dc.titleCataclysmic variable evolution and the white dwarf mass problem: A Reviewen_ES
dc.typeArticuloen_ES
uv.catalogadorRCR DIBRAen_ES
uv.departamentoInstituto de Fisica y Astronomiaen_ES

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