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Serbian Astronomical Journal 2008, br. 176, str. 65-70
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Optički spektri radio planetarnih maglina u malom Magelanovom oblaku
aCentre for Astronomy, James Cook University, Townsville, Australia bUniversity of Western Sydney, Locked Bag, Penrith South, Australia
e-adresa: m.filipovic@uws.edu.au
SažetakU ovoj studiji predstavljamo preliminarne rezultate spektralne analize četiri radio-kandidata za planetarne magline u Malom Magelanovom oblaku (MMO). Optička posmatranja prikazana ovde, urađena su sa Radklif 1.9 m teleskopom (Saderlend, Ju na Afrika). Ove četiri radio planetarne magline originalno su otkrivene sa naših ranijih radio pregleda MMO napravljenih sa Australijanskim Teleskopom Kompaktnog Polja (ATCA) na 20 i 13 cm, a takođe su potvrđene dodatnim posmatranjima visoke rezolucije na 6 i 3 cm (400 /200 ). Optičke i radio-pozicije ova četiri kandidata za radio-planetarne magline u MMO su udaljene manje od 200 i najverovatnije predstavljaju pod-populaciju planetarnih maglina izraženih kao veoma sjajni radio-objekti. Jonizovane mase ovih objekata su proračunate na više od 2.6 Mo , što dalje podržava postojanje planetarnih maglina sa progenitonskim centralnim zvezdama masa do 8 Mo.
Ključne rečiplanetary nebulae: individual, N9, SMP11, N61, N68
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