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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Format: | Article |
Language: | English |
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National Aviation University
2001-12-01
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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. |
first_indexed | 2024-12-12T07:44:56Z |
format | Article |
id | doaj.art-3c95569f1eaa481289f49e23b2cdd370 |
institution | Directory Open Access Journal |
issn | 1607-2855 2411-6602 |
language | English |
last_indexed | 2024-12-12T07:44:56Z |
publishDate | 2001-12-01 |
publisher | National Aviation University |
record_format | Article |
series | Вісник Астрономічної школи |
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 |