B[e]-star CI Cam: a high-resolution spectrum atlas in the range of 395$÷$780 nm
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917098644570112 |
|---|---|
| author | Klochkova, Valentina G. Miroshnichenko, Anatoly S. Komarova, Victoria N. Tavolzhanskaya, Nonna S. |
| author_facet | Klochkova, Valentina G. Miroshnichenko, Anatoly S. Komarova, Victoria N. Tavolzhanskaya, Nonna S. |
| contents | The atlas of the spectrum of the B[e] star CI Cam obtained with the 6-meter BTA telescope in combination with the NES spectrograph in the wavelength interval of 395$÷$780 nm with a resolution of $λ/Δλ\ge60\,000$ is presented. The atlas contains about 400 spectral features and illustrates the diversity of spectral features of the unique star, forming in a complex circumstellar environment. The spectrum is dominated by forceful single-peaked HI, HeI emissions and numerous double-peaked permitted and forbidden emissions of ions of chemical elements starting from the CNO triad up to metals (Mg, Al, Ti, V, Cr, Fe) with practically ``rectangular'' profiles. The FeII and [FeII] emissions predominate in the spectrum. However, several other double-peaked forbidden ion emissions were also detected: [VII], [Cr II], [Ni II]. The atlas is presented graphically, with a separate figure corresponding to each echelle order. A list of identified lines, including a number of known interstellar features is presented in table form. CI Cam supergiant status has been confirmed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_18067 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | B[e]-star CI Cam: a high-resolution spectrum atlas in the range of 395$÷$780 nm Klochkova, Valentina G. Miroshnichenko, Anatoly S. Komarova, Victoria N. Tavolzhanskaya, Nonna S. Solar and Stellar Astrophysics The atlas of the spectrum of the B[e] star CI Cam obtained with the 6-meter BTA telescope in combination with the NES spectrograph in the wavelength interval of 395$÷$780 nm with a resolution of $λ/Δλ\ge60\,000$ is presented. The atlas contains about 400 spectral features and illustrates the diversity of spectral features of the unique star, forming in a complex circumstellar environment. The spectrum is dominated by forceful single-peaked HI, HeI emissions and numerous double-peaked permitted and forbidden emissions of ions of chemical elements starting from the CNO triad up to metals (Mg, Al, Ti, V, Cr, Fe) with practically ``rectangular'' profiles. The FeII and [FeII] emissions predominate in the spectrum. However, several other double-peaked forbidden ion emissions were also detected: [VII], [Cr II], [Ni II]. The atlas is presented graphically, with a separate figure corresponding to each echelle order. A list of identified lines, including a number of known interstellar features is presented in table form. CI Cam supergiant status has been confirmed. |
| title | B[e]-star CI Cam: a high-resolution spectrum atlas in the range of 395$÷$780 nm |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2511.18067 |