Helium abundance determination in hii regions of blue compact dwarf galaxies

We present detail study of helium ionic abundances of HII regions in Blue Compact Dwarf galaxies using new emissivities from [3]. On the base of new helium He/H and heavy elements abundances A/H [1, 2] different types of Y–Z dependences were analyzed. The values of primordial helium abundance Yp and...

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Main Author: B. Ya. Melekh
Format: Article
Language:English
Published: National Aviation University 2001-12-01
Series:Вісник Астрономічної школи
Online Access:http://astro.nau.edu.ua/issues/2001_V.2_Iss.2/096.html
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author B. Ya. Melekh
author_facet B. Ya. Melekh
author_sort B. Ya. Melekh
collection DOAJ
description We present detail study of helium ionic abundances of HII regions in Blue Compact Dwarf galaxies using new emissivities from [3]. On the base of new helium He/H and heavy elements abundances A/H [1, 2] different types of Y–Z dependences were analyzed. The values of primordial helium abundance Yp and heavy elements enrichment dY/dZ were obtained for different cases of HeI lines using.
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spelling doaj.art-3c95569f1eaa481289f49e23b2cdd3702022-12-22T00:32:37ZengNational Aviation UniversityВісник Астрономічної школи1607-28552411-66022001-12-01229610110.18372/2411-6602.02.20962411-6602.02.2096Helium abundance determination in hii regions of blue compact dwarf galaxiesB. Ya. Melekh0Astronomical Observatory, Ivan Franko National University of Lviv, UkraineWe present detail study of helium ionic abundances of HII regions in Blue Compact Dwarf galaxies using new emissivities from [3]. On the base of new helium He/H and heavy elements abundances A/H [1, 2] different types of Y–Z dependences were analyzed. The values of primordial helium abundance Yp and heavy elements enrichment dY/dZ were obtained for different cases of HeI lines using.http://astro.nau.edu.ua/issues/2001_V.2_Iss.2/096.html
spellingShingle B. Ya. Melekh
Helium abundance determination in hii regions of blue compact dwarf galaxies
Вісник Астрономічної школи
title Helium abundance determination in hii regions of blue compact dwarf galaxies
title_full Helium abundance determination in hii regions of blue compact dwarf galaxies
title_fullStr Helium abundance determination in hii regions of blue compact dwarf galaxies
title_full_unstemmed Helium abundance determination in hii regions of blue compact dwarf galaxies
title_short Helium abundance determination in hii regions of blue compact dwarf galaxies
title_sort helium abundance determination in hii regions of blue compact dwarf galaxies
url http://astro.nau.edu.ua/issues/2001_V.2_Iss.2/096.html
work_keys_str_mv AT byamelekh heliumabundancedeterminationinhiiregionsofbluecompactdwarfgalaxies