Photopolarimetric observations of the new eclipsing polar CTCV J1928-5001

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dc.contributor.authorPotter, SB
dc.contributor.authorAugusteijn, T
dc.contributor.authorTappert, C
dc.date.accessioned2025-01-21T01:06:37Z
dc.date.available2025-01-21T01:06:37Z
dc.date.issued2005
dc.description.abstractWe report photopolarimetric observations of a new eclipsing polar (AM Herculis system) discovered in the Calan-Tololo survey. The photometry and polarimetry are modulated on a period of similar to 101 min. Circular polarization variations are seen from similar to-8 to +12 per cent and from similar to 0 to 5 per cent in the red and blue parts of the optical spectrum, respectively. Two linearly polarized pulses are detected at orbital phases coinciding with the reversals in the circular polarization. This is consistent with a magnetic field strength of similar to 20 MG for the white dwarf primary, where accretion takes place at two regions. Both the accretion regions are self-occulted by the white dwarf during parts of the orbit. We estimate some of the system's parameters from its eclipses, which we further refine by modelling the polarimetric observations.
dc.fuente.origenWOS
dc.identifier.doi10.1111/j.1365-2966.2005.09569.x
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1111/j.1365-2966.2005.09569.x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96191
dc.identifier.wosidWOS:000233307700015
dc.issue.numero2
dc.language.isoen
dc.pagina.final572
dc.pagina.inicio565
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectaccretion, accretion discs
dc.subjectmethods : analytical
dc.subjecttechniques : polarimetric
dc.subjectbinaries : close
dc.subjectnovae, cataclysmic variables
dc.subjectX-rays : stars
dc.titlePhotopolarimetric observations of the new eclipsing polar CTCV J1928-5001
dc.typeartículo
dc.volumen364
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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