Spectroscopy of post-AGB star IRAS 01005+7910

Infrared source IRAS 01005+7910 is identified with an 11-mag peculiar star which has been previously found to be a post asymptotic giant branch star of early spectral type. There is significant spectral variability detected earlier. Over 30 spectra were obtained with high resolution (15000 − 60000)...

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Veröffentlicht in:Advances in Astronomy and Space Physics
Datum:2011
1. Verfasser: Nasonov, D.S.
Format: Artikel
Sprache:Englisch
Veröffentlicht: Advances in astronomy and space physics 2011
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/118940
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Spectroscopy of post-AGB star IRAS 01005+7910 / D.S. Nasonov // Advances in astronomy and space physics. — 2011. — Т. 1., вип. 1-2. — С. 5-8. — Бібліогр.: 12 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Nasonov, D.S.
author_facet Nasonov, D.S.
citation_txt Spectroscopy of post-AGB star IRAS 01005+7910 / D.S. Nasonov // Advances in astronomy and space physics. — 2011. — Т. 1., вип. 1-2. — С. 5-8. — Бібліогр.: 12 назв. — англ.
collection DSpace DC
container_title Advances in Astronomy and Space Physics
description Infrared source IRAS 01005+7910 is identified with an 11-mag peculiar star which has been previously found to be a post asymptotic giant branch star of early spectral type. There is significant spectral variability detected earlier. Over 30 spectra were obtained with high resolution (15000 − 60000) in spectral range 3500 − 7800 ˚A˚A. In this work the results of the spectral monitoring of this object are presented. The detailed analysis of radial velocities was carried out. Radial velocities derived from different absorption lines show variability within the same spectrum. Significant variability of radial velocities is demonstrated on the scale of one day. The variability of line profiles is present. The constant radial velocity −51 ± 1.4 km/s of forbidden lines was detected. Shell expansion velocity is estimated from widths of forbidden emission line profiles. The hydrogen and helium line profiles demonstrate the complicated and changing picture both of accretion and outflow in envelope.
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language English
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publisher Advances in astronomy and space physics
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spelling Nasonov, D.S.
2017-06-01T15:00:52Z
2017-06-01T15:00:52Z
2011
Spectroscopy of post-AGB star IRAS 01005+7910 / D.S. Nasonov // Advances in astronomy and space physics. — 2011. — Т. 1., вип. 1-2. — С. 5-8. — Бібліогр.: 12 назв. — англ.
987-966-439-367-3
https://nasplib.isofts.kiev.ua/handle/123456789/118940
Infrared source IRAS 01005+7910 is identified with an 11-mag peculiar star which has been previously found to be a post asymptotic giant branch star of early spectral type. There is significant spectral variability detected earlier. Over 30 spectra were obtained with high resolution (15000 − 60000) in spectral range 3500 − 7800 ˚A˚A. In this work the results of the spectral monitoring of this object are presented. The detailed analysis of radial velocities was carried out. Radial velocities derived from different absorption lines show variability within the same spectrum. Significant variability of radial velocities is demonstrated on the scale of one day. The variability of line profiles is present. The constant radial velocity −51 ± 1.4 km/s of forbidden lines was detected. Shell expansion velocity is estimated from widths of forbidden emission line profiles. The hydrogen and helium line profiles demonstrate the complicated and changing picture both of accretion and outflow in envelope.
This work was supported in part by Russian Foundation for Basic Research (project 08-02-00072)
en
Advances in astronomy and space physics
Advances in Astronomy and Space Physics
Physics of Stars and Galaxies
Spectroscopy of post-AGB star IRAS 01005+7910
Article
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spellingShingle Spectroscopy of post-AGB star IRAS 01005+7910
Nasonov, D.S.
Physics of Stars and Galaxies
title Spectroscopy of post-AGB star IRAS 01005+7910
title_full Spectroscopy of post-AGB star IRAS 01005+7910
title_fullStr Spectroscopy of post-AGB star IRAS 01005+7910
title_full_unstemmed Spectroscopy of post-AGB star IRAS 01005+7910
title_short Spectroscopy of post-AGB star IRAS 01005+7910
title_sort spectroscopy of post-agb star iras 01005+7910
topic Physics of Stars and Galaxies
topic_facet Physics of Stars and Galaxies
url https://nasplib.isofts.kiev.ua/handle/123456789/118940
work_keys_str_mv AT nasonovds spectroscopyofpostagbstariras010057910