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- WZ_Sagittae abstract "WZ Sagittae (WZ Sge) is a cataclysmic dwarf nova star system in the Sagitta constellation. it consists of a white dwarf primary being orbited by a low mass companion. The white dwarf is about 0.85 solar masses while the companion is only 0.08 solar masses. This implies that the companion is a spectral class L2 star, although this has yet to be confirmed. The distance to this system has been determined by parallax measurements using the fine guidance sense on the Hubble Space Telescope, yielding a distance of 43.5 parsecs.WZ Sagittae is an ultrashort period cataclysmic nova, with outbursts observed in 1913, 1946, 1978 and 2001. During the well-observed 2001 outburst, the nova reached a peak visual magnitude of 8.21. The 1913 event was the brightest of the observed outbursts, reaching a photographic magnitude of 7.0.This nova is classified as a SU Ursae Majoris class star, which is a subclass of dwarf nova that produces what are termed superoutbursts spaced several months apart, interspaced with normal outbursts every few weeks. The normal outbursts typically last 2−3 days, while a superoutburst lasts a few weeks. However, WZ Sagittae is unusual in that it is only observed to emit superbursts.The outbursts of a dwarf nova are caused when matter from a ring-like accretion disk becomes unstable. In this system, the companion star is sufficiently close to the white dwarf that the tidal bulge of the former overlaps the Roche limit, allowing matter to pass across and accumulate onto the disk. When the disk reaches a critical temperature, the gas collapses onto the white dwarf resulting in the release of gravitational potential energy.A superoutburst may be caused by a tidal interaction of the accretion disk with the donor star, resulting in a greater deposition of matter on the white dwarf. In the case of WZ Sagittae, however, magnetic effects may act to enhance the deposition, resulting in the lack of normal outbursts. Because of the unique timing differences in the rate of superoutbursts of this nova, it been designated the prototype star for a WZ Sagittae subclass.The orbital period of this system is 1.361 hours. Based upon observations of eclipses of the hot spot on the white dwarf (created by infalling material), the orbital plane of this system is inclined by 76° ± 6° to the line of sight from the Earth.".
- WZ_Sagittae wikiPageExternalLink ql.
- WZ_Sagittae wikiPageExternalLink 0901.pdf.
- WZ_Sagittae wikiPageExternalLink vsots_wzsge.
- WZ_Sagittae wikiPageID "21629537".
- WZ_Sagittae wikiPageRevisionID "602296360".
- WZ_Sagittae appmagV "15.2".
- WZ_Sagittae appmagV "7".
- WZ_Sagittae bV "+1.49".
- WZ_Sagittae class "DApe D".
- WZ_Sagittae constell Sagitta.
- WZ_Sagittae epoch "J2000".
- WZ_Sagittae hasPhotoCollection WZ_Sagittae.
- WZ_Sagittae mass "/0.08".
- WZ_Sagittae pError "0.15".
- WZ_Sagittae parallax "22.97".
- WZ_Sagittae radialV "-51".
- WZ_Sagittae uB "+1.45".
- WZ_Sagittae variable Dwarf_nova.
- WZ_Sagittae subject Category:Dwarf_novae.
- WZ_Sagittae subject Category:Objects_named_with_variable_star_designations.
- WZ_Sagittae subject Category:Sagitta_(constellation).
- WZ_Sagittae subject Category:White_dwarfs.
- WZ_Sagittae type CelestialBody109239740.
- WZ_Sagittae type DwarfNovae.
- WZ_Sagittae type NaturalObject100019128.
- WZ_Sagittae type Nova109374493.
- WZ_Sagittae type Object100002684.
- WZ_Sagittae type PhysicalEntity100001930.
- WZ_Sagittae type Star109444100.
- WZ_Sagittae type Whole100003553.
- WZ_Sagittae type CelestialBody.
- WZ_Sagittae type Star.
- WZ_Sagittae type PhysicalBody.
- WZ_Sagittae comment "WZ Sagittae (WZ Sge) is a cataclysmic dwarf nova star system in the Sagitta constellation. it consists of a white dwarf primary being orbited by a low mass companion. The white dwarf is about 0.85 solar masses while the companion is only 0.08 solar masses. This implies that the companion is a spectral class L2 star, although this has yet to be confirmed.".
- WZ_Sagittae label "WZ Sagittae".
- WZ_Sagittae label "WZ Sagittae".
- WZ_Sagittae label "WZ Стрелы".
- WZ_Sagittae sameAs WZ_Sagittae.
- WZ_Sagittae sameAs m.05mx_fd.
- WZ_Sagittae sameAs Q2356324.
- WZ_Sagittae sameAs Q2356324.
- WZ_Sagittae sameAs WZ_Sagittae.
- WZ_Sagittae wasDerivedFrom WZ_Sagittae?oldid=602296360.
- WZ_Sagittae isPrimaryTopicOf WZ_Sagittae.
- WZ_Sagittae name "WZ Sagittae A/B".