QPOs in cataclysmic variables and in X-ray binaries

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dc.contributor.authorKluźniak, W
dc.contributor.authorLasota, J-P
dc.contributor.authorAbramowicz, M A
dc.contributor.authorWarner, B
dc.date.accessioned2021-10-08T11:01:01Z
dc.date.available2021-10-08T11:01:01Z
dc.date.issued2005
dc.description.abstractRecent observations, reported by Warner and Woudt, of Dwarf Nova Oscillations (DNOs) exhibiting frequency drift, period doubling, and 1:2:3 harmonic structure, can be understood as disc oscillations that are excited by perturbations at the spin frequency of the white dwarf or of its equatorial layers. Similar quasi-periodic disc oscillations in black hole low-mass X-ray binary (LMXB) transients in a 2:3 frequency ratio show no evidence of frequency drift and correspond to two separate modes of disc oscillation excited by an internal resonance. Just as no effects of general relativity play a role in white dwarf DNOs, no stellar surface or magnetic field effects need be invoked to explain the black hole QPOs.
dc.identifier.apacitationKluźniak, W., Lasota, J., Abramowicz, M. A., & Warner, B. (2005). QPOs in cataclysmic variables and in X-ray binaries. <i>Astronomy and Astrophysics</i>, 440(2), L25 - L28. http://hdl.handle.net/11427/35068en_ZA
dc.identifier.chicagocitationKluźniak, W, J-P Lasota, M A Abramowicz, and B Warner "QPOs in cataclysmic variables and in X-ray binaries." <i>Astronomy and Astrophysics</i> 440, 2. (2005): L25 - L28. http://hdl.handle.net/11427/35068en_ZA
dc.identifier.citationKluźniak, W., Lasota, J., Abramowicz, M.A. & Warner, B. 2005. QPOs in cataclysmic variables and in X-ray binaries. <i>Astronomy and Astrophysics.</i> 440(2):L25 - L28. http://hdl.handle.net/11427/35068en_ZA
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.ris TY - Journal Article AU - Kluźniak, W AU - Lasota, J-P AU - Abramowicz, M A AU - Warner, B AB - Recent observations, reported by Warner and Woudt, of Dwarf Nova Oscillations (DNOs) exhibiting frequency drift, period doubling, and 1:2:3 harmonic structure, can be understood as disc oscillations that are excited by perturbations at the spin frequency of the white dwarf or of its equatorial layers. Similar quasi-periodic disc oscillations in black hole low-mass X-ray binary (LMXB) transients in a 2:3 frequency ratio show no evidence of frequency drift and correspond to two separate modes of disc oscillation excited by an internal resonance. Just as no effects of general relativity play a role in white dwarf DNOs, no stellar surface or magnetic field effects need be invoked to explain the black hole QPOs. DA - 2005 DB - OpenUCT DP - University of Cape Town IS - 2 J1 - Astronomy and Astrophysics LK - https://open.uct.ac.za PY - 2005 SM - 0004-6361 SM - 1432-0746 T1 - QPOs in cataclysmic variables and in X-ray binaries TI - QPOs in cataclysmic variables and in X-ray binaries UR - http://hdl.handle.net/11427/35068 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/35068
dc.identifier.vancouvercitationKluźniak W, Lasota J, Abramowicz MA, Warner B. QPOs in cataclysmic variables and in X-ray binaries. Astronomy and Astrophysics. 2005;440(2):L25 - L28. http://hdl.handle.net/11427/35068.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Astronomy
dc.publisher.facultyFaculty of Science
dc.sourceAstronomy and Astrophysics
dc.source.journalissue2
dc.source.journalvolume440
dc.source.paginationL25 - L28
dc.source.urihttps://dx.doi.org/10.1051/0004-6361:200500163
dc.subject.otheraccretion, accretion discs
dc.subject.othernovae, cataclysmic variables
dc.subject.otherX-ray: binaries
dc.subject.otherCosmology
dc.subject.otherCosmic x-ray sources
dc.subject.otherBlack holes
dc.subject.otherMagnetic field effects
dc.subject.otherGeneral relativity
dc.subject.otherResonance
dc.subject.otherOscillation modes
dc.subject.otherLow-mass stars
dc.subject.otherAccretion disks
dc.subject.otherQuasi periodic variation
dc.subject.otherWhite dwarf stars
dc.subject.otherDisturbances
dc.subject.otherFrequency drift
dc.subject.otherOscillation frequency
dc.subject.otherDwarf novae
dc.subject.otherBinary X ray source
dc.subject.otherX-ray binary stars
dc.subject.otherCataclysmic variable stars
dc.subject.otherCosmologie
dc.subject.otherSource RX cosmique
dc.subject.otherTrou noir
dc.titleQPOs in cataclysmic variables and in X-ray binaries
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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