Long term UBV RI photometric and spectral monitoring of nova KT Eri during 2009-2023
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866912137055567872 |
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| author | Shugarov, S. Yu. Golysheva, P. Yu. Dallaporta, S. Munari, U. |
| author_facet | Shugarov, S. Yu. Golysheva, P. Yu. Dallaporta, S. Munari, U. |
| contents | We present a status report of our intensive and long-term UBV RI photometric monitoring of nova KT Eri since its outbust in 2009. The old-nova in quiescence is characterized by very high excitation conditions (HeII 4686 being constantly the strongest emission line in optical spectra) and a complex-pattern photometric variability of one mag amplitude in which multi-periodicities (from hours to years) are mixed with chaotic activity of similar amplitude. Mean color and brightness levels are the same for pre- and post- outburst quiescence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_19348 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Long term UBV RI photometric and spectral monitoring of nova KT Eri during 2009-2023 Shugarov, S. Yu. Golysheva, P. Yu. Dallaporta, S. Munari, U. Solar and Stellar Astrophysics We present a status report of our intensive and long-term UBV RI photometric monitoring of nova KT Eri since its outbust in 2009. The old-nova in quiescence is characterized by very high excitation conditions (HeII 4686 being constantly the strongest emission line in optical spectra) and a complex-pattern photometric variability of one mag amplitude in which multi-periodicities (from hours to years) are mixed with chaotic activity of similar amplitude. Mean color and brightness levels are the same for pre- and post- outburst quiescence. |
| title | Long term UBV RI photometric and spectral monitoring of nova KT Eri during 2009-2023 |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2411.19348 |