M31N 2017-01e: Discovery of a Previous Eruption in this Enigmatic Recurrent Nova

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00582670" target="_blank" >RIV/67985815:_____/22:00582670 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0350748" target="_blank" >https://hdl.handle.net/11104/0350748</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/2515-5172/aca2a6" target="_blank" >10.3847/2515-5172/aca2a6</a>

Result language
angličtina
Original language name
M31N 2017-01e: Discovery of a Previous Eruption in this Enigmatic Recurrent Nova
Original language description
We report the discovery of a previously unknown eruption of the recurrent nova M31N 2017-01e that took place on 2012 January 11. The earlier eruption was detected by Pan-STARRS and occurred 1847 days (5.06 yr) prior to the eruption on 2017 January 31 (M31N 2017-01e). The nova has now been seen to have had a total of four recorded eruptions (M31N 2012-01c, 2017-01e, 2019-09d, and 2022-03d) with a mean time between outbursts of just 929.5 ± 6.8 days (2.545 ± 0.019 yr), the second shortest recurrence time known for any nova. We also show that there is a blue variable source (<V> = 20.56 ± 0.17, B - V ≃ 0.045), apparently coincident with the position of the nova, that exhibits a 14.3 days periodicity. Possible models of the system are proposed, but none are entirely satisfactory.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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