Pre-outburst signal in the light curves of the recurrent novae RS Oph and T CrB
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866916471321395200 |
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| author | Zamanov, R. K. Marchev, V. Marti, J. Latev, G. Y. |
| author_facet | Zamanov, R. K. Marchev, V. Marti, J. Latev, G. Y. |
| contents | Pre-outburst signal (a decrease of the optical brightness) just before the outburst is clearly detected in the observations of the T CrB obtained before and during the 1946 outburst. A similar decrease is also visible in the light curve of RS Oph during the 2021 outburst. We suppose that this is due to formation of a thick, dense envelope around the white dwarf, and we estimate its size (1000 - 2000 km), mass (5.10$^{-8}$ - 6.10$^{-7}$ M$_\odot$) and average density (5 - 16 g cm$^{-3}$). |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2308_04104 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Pre-outburst signal in the light curves of the recurrent novae RS Oph and T CrB Zamanov, R. K. Marchev, V. Marti, J. Latev, G. Y. Solar and Stellar Astrophysics Pre-outburst signal (a decrease of the optical brightness) just before the outburst is clearly detected in the observations of the T CrB obtained before and during the 1946 outburst. A similar decrease is also visible in the light curve of RS Oph during the 2021 outburst. We suppose that this is due to formation of a thick, dense envelope around the white dwarf, and we estimate its size (1000 - 2000 km), mass (5.10$^{-8}$ - 6.10$^{-7}$ M$_\odot$) and average density (5 - 16 g cm$^{-3}$). |
| title | Pre-outburst signal in the light curves of the recurrent novae RS Oph and T CrB |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2308.04104 |