Sakurai's object: a [WC] star in a new bipolar nebula after a VLTP
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arXiv
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| Hauptverfasser: | , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910614178234368 |
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| author | Van de Steene, Griet van Hoof, Peter Kimeswenger, Stefan Hajduk, Marcin Tafoya, Daniel Toala, Jesus Zijlstra, Albert Barria, Daniela |
| author_facet | Van de Steene, Griet van Hoof, Peter Kimeswenger, Stefan Hajduk, Marcin Tafoya, Daniel Toala, Jesus Zijlstra, Albert Barria, Daniela |
| contents | Optical spectra of the Very Late Thermal Pulse (VLTP) object V4334 Sgr have shown a rapidly changing spectrum resulting from shocks in the outflow, which created a new bipolar nebula inside the old nebula. We see C II and C III emission lines emerging typical of a [WC 11-10]-type star. The strong increase of [O III] and [S III] emission lines indicate the possible onset of photoionisation in the new ejecta. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2409_13289 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Sakurai's object: a [WC] star in a new bipolar nebula after a VLTP Van de Steene, Griet van Hoof, Peter Kimeswenger, Stefan Hajduk, Marcin Tafoya, Daniel Toala, Jesus Zijlstra, Albert Barria, Daniela Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena Optical spectra of the Very Late Thermal Pulse (VLTP) object V4334 Sgr have shown a rapidly changing spectrum resulting from shocks in the outflow, which created a new bipolar nebula inside the old nebula. We see C II and C III emission lines emerging typical of a [WC 11-10]-type star. The strong increase of [O III] and [S III] emission lines indicate the possible onset of photoionisation in the new ejecta. |
| title | Sakurai's object: a [WC] star in a new bipolar nebula after a VLTP |
| topic | Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2409.13289 |