Investigation of the origin of nebular HeII emission in the spectra of low-metallicity HII regions from the Sloan Digital Sky Survey
Primordial stars apparently were very hot and massive and emitted a lot of hard ionizing radiation.Regions of ionized hydrogen are the best places for studying such hard radiation, because of underlying starformation processes. To check a possible links between hard ultraviolet radiation and Wolf–Ra...
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Format: | Article |
Language: | English |
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National Aviation University
2011-10-01
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Series: | Вісник Астрономічної школи |
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Online Access: | http://astro.nau.edu.ua/issues/2011_V.7_Iss.1/Agienko.html |