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St 2-22 - Another Symbiotic Star with High-Velocity Bipolar Jets

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dc.abstract.enWe report the detection of high-velocity components in the wings of Hα emission line in spectra of symbiotic binary star St 2-22 obtained in 2005. This finding encouraged us to start the present investigation in order to show that this poorly-studied object is a jet-producing system. We have used high-resolution optical and low-resolution near-infrared spectra, as well as available optical and infrared photometry, to evaluate some physical parameters of the St 2-22 components and characteristics of the jets. We confirm that St 2-22 is a S-type symbiotic star. Our results demonstrate that an unnoticed outburst, similar to those in classical symbiotic systems, occurred in the first half of 2005. During the outburst, collimated bipolar jets were ejected by the hot component of St 2-22 with an average velocity of about 1700 km/s.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorTomov, T.
dc.contributor.authorZamanov, R.
dc.contributor.authorGałan, C.
dc.contributor.authorPietrukowicz, Paweł
dc.date.accessioned2024-01-26T09:20:40Z
dc.date.available2024-01-26T09:20:40Z
dc.date.copyright2017-08-19
dc.date.issued2017
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number3
dc.description.versionORIGINAL_AUTHOR
dc.description.volume67
dc.identifier.doi10.32023/0001-5237/67.3.2
dc.identifier.issn0001-5237
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121033
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2017AcA....67..225T
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofActa Astronomica
dc.relation.pages225-242
dc.rightsOther
dc.sciencecloudnosend
dc.titleSt 2-22 - Another Symbiotic Star with High-Velocity Bipolar Jets
dc.typeJournalArticle
dspace.entity.typePublication