Long Term Optical Spectroscopy of HD86161 (WR 16)

Niemelä, Virpi Sinikka et al · SEDICI UNLP · 2001

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Niemelä, Virpi Sinikka et al

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SEDICI UNLP

Year

2001

Language

English

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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. Facultad de Ciencias Astronómicas y Geofísicas

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APA 7

Niemelä, V. S. E. A. (2001). Long Term Optical Spectroscopy of HD86161 (WR 16). http://sedici.unlp.edu.ar/handle/10915/2076

MLA

Niemelä, Virpi Sinikka et al. "Long Term Optical Spectroscopy of HD86161 (WR 16)." 2001. http://sedici.unlp.edu.ar/handle/10915/2076.

Chicago

Niemelä, Virpi Sinikka et al. 2001. "Long Term Optical Spectroscopy of HD86161 (WR 16).". http://sedici.unlp.edu.ar/handle/10915/2076.

Harvard

Niemelä, V. S. E. A. 2001, Long Term Optical Spectroscopy of HD86161 (WR 16), SEDICI UNLP, available at: http://sedici.unlp.edu.ar/handle/10915/2076 [Accessed 7 Aug. 2026].

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Title: Long Term Optical Spectroscopy of HD86161 (WR 16)

Author / contributors: Niemelä, Virpi Sinikka et al

Publisher: SEDICI UNLP

Publication year: 2001

Language: English

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Ciencias Astronómicas; astrofísica