Long Term Optical Spectroscopy of HD86161 (WR 16)
We present results of optical spectroscopy of the emission line star HD 86161=WR 16, the central star of an ejecta ring nebula, obtained between 1971 and 2000 in the wavelength domain 3200-7300 Á. The spectrum of type WN8 is rich in He and N lines, in particular Hell 5-n series emission lines are ob...
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Autores principales: | , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
2001
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Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/2076 |
Aporte de: |
id |
I19-R120-10915-2076 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Ciencias Astronómicas astrofísica |
spellingShingle |
Ciencias Astronómicas astrofísica Niemelä, Virpi Sinikka Gamen, Roberto Claudio Morrell, Nidia Irene Long Term Optical Spectroscopy of HD86161 (WR 16) |
topic_facet |
Ciencias Astronómicas astrofísica |
description |
We present results of optical spectroscopy of the emission line star HD 86161=WR 16, the central star of an ejecta ring nebula, obtained between 1971 and 2000 in the wavelength domain 3200-7300 Á. The spectrum of type WN8 is rich in He and N lines, in particular Hell 5-n series emission lines are observed up to high quantum numbers. We analyze possible radial velocity variations observed between different epochs, and find stochastic variations with possible superimposed epoch to epoch variations. These last variations could be due to the orbital motion of an eccentric long period binary system. |
format |
Articulo Articulo |
author |
Niemelä, Virpi Sinikka Gamen, Roberto Claudio Morrell, Nidia Irene |
author_facet |
Niemelä, Virpi Sinikka Gamen, Roberto Claudio Morrell, Nidia Irene |
author_sort |
Niemelä, Virpi Sinikka |
title |
Long Term Optical Spectroscopy of HD86161 (WR 16) |
title_short |
Long Term Optical Spectroscopy of HD86161 (WR 16) |
title_full |
Long Term Optical Spectroscopy of HD86161 (WR 16) |
title_fullStr |
Long Term Optical Spectroscopy of HD86161 (WR 16) |
title_full_unstemmed |
Long Term Optical Spectroscopy of HD86161 (WR 16) |
title_sort |
long term optical spectroscopy of hd86161 (wr 16) |
publishDate |
2001 |
url |
http://sedici.unlp.edu.ar/handle/10915/2076 |
work_keys_str_mv |
AT niemelavirpisinikka longtermopticalspectroscopyofhd86161wr16 AT gamenrobertoclaudio longtermopticalspectroscopyofhd86161wr16 AT morrellnidiairene longtermopticalspectroscopyofhd86161wr16 |
bdutipo_str |
Repositorios |
_version_ |
1764820464857776132 |