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Novaya Centavra 2013, vidimaya nevooruzhennym glazom
<< Vchera 7.12.2013 Zavtra >>
Novaya Centavra 2013, vidimaya nevooruzhennym glazom
Avtory i prava: Yurii Beleckii (Observatoriya Las Kampanas, Institut Karnegi)
Perevod: D.Yu.Cvetkov
Poyasnenie: Samye yarkie zvezdnye mayaki sozvezdiya Centavra – α i β Centavra – mozhno legko uvidet' iz yuzhnogo polushariya. A seichas k nim prisoedinilas' Novaya Centavra 2013, vidimaya nevooruzhennym glazom. Na etom nochnom peizazhe, zapechatlevshem nebo nad observatoriei Las Kampanas v pustyne Atakama na yuge Chili rannim utrom 5-go dekabrya, novaya zvezda vidna vmeste so starymi zvezdami etogo obshirnogo sozvezdiya na fone zelenovatogo svecheniya atmosfery. Zvezda byla otkryta ohotnikom za Novymi Dzhonom Sichem iz Avstralii 2-go dekabrya, kogda ee blesk priblizhalsya k predelu vidimosti nevooruzhennym glazom. Spektroskopicheskie nablyudeniya pokazali, chto eto – klassicheskaya Novaya – vzaimodeistvuyushaya dvoinaya zvezdnaya sistema, sostoyashaya iz plotnogo, goryachego belogo karlika i holodnoi zvezdy-giganta. Veshestvo sputnika padaet na poverhnost' belogo karlika i nakaplivaetsya, poka v nem ne nachnutsya termoyadernye reakcii. Katastroficheskii vzryv privodit k ogromnomu rostu yarkosti i obrazovaniyu rasshiryayusheisya obolochki. Odnako zvezdy ne razrushayutsya. Predpolagaetsya, chto v klassicheskih Novyh potok veshestva na belyi karlik vozobnovlyaetsya, i proishodit sleduyushaya vspyshka.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

English text
Po materialam Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: nova - novye zvezdy
Publikacii so slovami: nova - novye zvezdy
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