High-frequency variations of hydrogen spectral lines in the B3V star η UMa
We reported the detection of high-frequency variations in the hydrogen Balmer lines in the hot star η UMa of spectral class B3V. Spectral observations of η UMa were carried out with slitless spectrograph (R ∼ 100) installed on the 60 cm Carl Zeiss telescope in the Andrushivka Observatory. Spectra we...
Збережено в:
| Дата: | 2015 |
|---|---|
| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Головна астрономічна обсерваторія НАН України
2015
|
| Назва видання: | Advances in Astronomy and Space Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119820 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | High-frequency variations of hydrogen spectral lines in the B3V star η UMa / S.M. Pokhvala // Advances in Astronomy and Space Physics. — 2015. — Т. 5., вип. 1. — С. 21-23. — Бібліогр.: 7 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-119820 |
|---|---|
| record_format |
dspace |
| spelling |
irk-123456789-1198202017-06-10T03:03:22Z High-frequency variations of hydrogen spectral lines in the B3V star η UMa Pokhvala, S.M. We reported the detection of high-frequency variations in the hydrogen Balmer lines in the hot star η UMa of spectral class B3V. Spectral observations of η UMa were carried out with slitless spectrograph (R ∼ 100) installed on the 60 cm Carl Zeiss telescope in the Andrushivka Observatory. Spectra were obtained with a time resolution in the sub-second range. It has been found that the η UMa shows rapid variations in the hydrogen lines Hα, Hβ, Hγ, as well as variations in the atmospheric oxygen lines. The intensity variations in the hydrogen lines varies from 0.2% to 0.5% , and that of the oxygen lines is approximately 2%. 2015 Article High-frequency variations of hydrogen spectral lines in the B3V star η UMa / S.M. Pokhvala // Advances in Astronomy and Space Physics. — 2015. — Т. 5., вип. 1. — С. 21-23. — Бібліогр.: 7 назв. — англ. 2227-1481 DOI: 10.17721/2227-1481.5.21-23 http://dspace.nbuv.gov.ua/handle/123456789/119820 en Advances in Astronomy and Space Physics Головна астрономічна обсерваторія НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
We reported the detection of high-frequency variations in the hydrogen Balmer lines in the hot star η UMa of spectral class B3V. Spectral observations of η UMa were carried out with slitless spectrograph (R ∼ 100) installed on the 60 cm Carl Zeiss telescope in the Andrushivka Observatory. Spectra were obtained with a time resolution in the sub-second range. It has been found that the η UMa shows rapid variations in the hydrogen lines Hα, Hβ, Hγ, as well as variations in the atmospheric oxygen lines. The intensity variations in the hydrogen lines varies from 0.2% to 0.5% , and that of the oxygen lines is approximately 2%. |
| format |
Article |
| author |
Pokhvala, S.M. |
| spellingShingle |
Pokhvala, S.M. High-frequency variations of hydrogen spectral lines in the B3V star η UMa Advances in Astronomy and Space Physics |
| author_facet |
Pokhvala, S.M. |
| author_sort |
Pokhvala, S.M. |
| title |
High-frequency variations of hydrogen spectral lines in the B3V star η UMa |
| title_short |
High-frequency variations of hydrogen spectral lines in the B3V star η UMa |
| title_full |
High-frequency variations of hydrogen spectral lines in the B3V star η UMa |
| title_fullStr |
High-frequency variations of hydrogen spectral lines in the B3V star η UMa |
| title_full_unstemmed |
High-frequency variations of hydrogen spectral lines in the B3V star η UMa |
| title_sort |
high-frequency variations of hydrogen spectral lines in the b3v star η uma |
| publisher |
Головна астрономічна обсерваторія НАН України |
| publishDate |
2015 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/119820 |
| citation_txt |
High-frequency variations of hydrogen spectral lines in the B3V star η UMa / S.M. Pokhvala // Advances in Astronomy and Space Physics. — 2015. — Т. 5., вип. 1. — С. 21-23. — Бібліогр.: 7 назв. — англ. |
| series |
Advances in Astronomy and Space Physics |
| work_keys_str_mv |
AT pokhvalasm highfrequencyvariationsofhydrogenspectrallinesintheb3vstarēuma |
| first_indexed |
2023-10-18T20:35:30Z |
| last_indexed |
2023-10-18T20:35:30Z |
| _version_ |
1796150600911552512 |