Influence of the continuum determination method on the mean transmission in the Lyα forest
Determination of the initial flux, or continuum, in the quasar spectra prior to its absorption by the intergalactic Hi is nontrivial problem and it affects the precision of the mean transmission in the Lyα forest, F(z). The results of comparison of the F(z) values obtained using different methods of...
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| Опубліковано в: : | Advances in Astronomy and Space Physics |
|---|---|
| Дата: | 2016 |
| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Головна астрономічна обсерваторія НАН України
2016
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/119948 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Influence of the continuum determination method on the mean transmission in the Lyα forest / O. Torbaniuk // Advances in Astronomy and Space Physics. — 2016. — Т. 6., вип. 1. — С. 34-40. — Бібліогр.: 51 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-119948 |
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dspace |
| spelling |
Torbaniuk, O. 2017-06-10T13:15:08Z 2017-06-10T13:15:08Z 2016 Influence of the continuum determination method on the mean transmission in the Lyα forest / O. Torbaniuk // Advances in Astronomy and Space Physics. — 2016. — Т. 6., вип. 1. — С. 34-40. — Бібліогр.: 51 назв. — англ. 2227-1481 DOI:10.17721/2227-1481.6.34-40 https://nasplib.isofts.kiev.ua/handle/123456789/119948 Determination of the initial flux, or continuum, in the quasar spectra prior to its absorption by the intergalactic Hi is nontrivial problem and it affects the precision of the mean transmission in the Lyα forest, F(z). The results of comparison of the F(z) values obtained using different methods of the continuum determination are presented in this paper. This analysis was conducted using the most complete compilation of the F(z) data from the literature. It was found that the values of the F(z) obtained with the manually determined continuum are systematically higher than those obtained from extrapolated continuum. The difference varies from 5% at z = 2 up to 33% at z = 4.5, respectively. The author is thankful to Dr. Ganna Ivashchenko and Dr. Irina Vavilova for their invaluable help and fruitful discussions. This work has been supported by the Target Programme of Space Research of the NAS of Ukraine for 2013-2016 and by the Swiss National Science Foundation grant SCOPE IZ7370-152581. en Головна астрономічна обсерваторія НАН України Advances in Astronomy and Space Physics Influence of the continuum determination method on the mean transmission in the Lyα forest Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Influence of the continuum determination method on the mean transmission in the Lyα forest |
| spellingShingle |
Influence of the continuum determination method on the mean transmission in the Lyα forest Torbaniuk, O. |
| title_short |
Influence of the continuum determination method on the mean transmission in the Lyα forest |
| title_full |
Influence of the continuum determination method on the mean transmission in the Lyα forest |
| title_fullStr |
Influence of the continuum determination method on the mean transmission in the Lyα forest |
| title_full_unstemmed |
Influence of the continuum determination method on the mean transmission in the Lyα forest |
| title_sort |
influence of the continuum determination method on the mean transmission in the lyα forest |
| author |
Torbaniuk, O. |
| author_facet |
Torbaniuk, O. |
| publishDate |
2016 |
| language |
English |
| container_title |
Advances in Astronomy and Space Physics |
| publisher |
Головна астрономічна обсерваторія НАН України |
| format |
Article |
| description |
Determination of the initial flux, or continuum, in the quasar spectra prior to its absorption by the intergalactic Hi is nontrivial problem and it affects the precision of the mean transmission in the Lyα forest, F(z). The results of comparison of the F(z) values obtained using different methods of the continuum determination are presented in this paper. This analysis was conducted using the most complete compilation of the F(z) data from the literature. It was found that the values of the F(z) obtained with the manually determined continuum are systematically higher than those obtained from extrapolated continuum. The difference varies from 5% at z = 2 up to 33% at z = 4.5, respectively.
|
| issn |
2227-1481 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/119948 |
| citation_txt |
Influence of the continuum determination method on the mean transmission in the Lyα forest / O. Torbaniuk // Advances in Astronomy and Space Physics. — 2016. — Т. 6., вип. 1. — С. 34-40. — Бібліогр.: 51 назв. — англ. |
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2025-11-30T09:44:26Z |
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2025-11-30T09:44:26Z |
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