The gas emission spectrum in a star-forming region in the BCD galaxy VII Zw 403 (UGC 6456)статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Observations with the 6-m telescope of the Special Astrophysical Observatory obtained with the MPFS panoramic spectrograph and a slit spectrograph with the SCORPIO focal reducer are used to analyze the emission spectrum of the ionized gas in a star-forming region in the BCD galaxy VII Zw 403. We present images of the galaxy's central region in Ha, H beta, [SII], and [OIII], together with maps of the relative [OIII]/H beta and [SII]/H alpha intensities. We have determined the parameters of the gas in bright ionized supershells, and estimated the relative abundances of oxygen, nitrogen, and sulfur; a low relative N/O abundance was detected.