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Discovery of Two New Eruptions of the Ultrashort Recurrence Time Nova M31N 2017-01e by Shafter, Allen W.; Zhao, Jingyuan; Hornoch, Kamil; Kučáková, Hana; Taguchi, Kenta; Zhang, Jiashuo; You, Jia; Wang, Binyu; Xu, Runwei; Wang, Weiye; Ren, Yuqing; Ding, Lanhe; Yan, Xiaochang; Zhang, Mi; Wang, Wei-Hao; Bond, Howard E.; Williams, Robert; Zeimann, Gregory R. is a scholarly article available to read on EtoBox.

What is Discovery of Two New Eruptions of the Ultrashort Recurrence Time Nova M31N 2017-01e about?

We report the recent discovery of two new eruptions of the recurrent nova M31N 2017-01e in the Andromeda galaxy. The latest eruption, M31N 2024-08c, reached $R=17.8$ on 2024 August 06.85 UT, $\sim2$ months earlier than predicted. In addition to this recent eruption, a search of archival PTF data has revealed a previously unreported eruption on 2014 June 18.46 UT that reached a peak brightness of $R\sim17.9$ approximately a day later. The addition of these two eruption timings has allowed us to update the mean recurrence time of the nova. We find $\langle T_\mathrm{rec} \rangle = 924.0\pm7.0$ days ($2.53\pm0.02$ yr), which is slightly shorter than our previous determination. Thus, M31N 2017-01e remains the nova with the second shortest recurrence time known, with only M31N 2008-12a being shorter. We also present a low-resolution spectrum of the likely quiescent counterpart of the nova, a $\sim20.5$ mag evolved B star displaying an $\sim14.3$ d photometric modulation.

Author

Shafter, Allen W.; Zhao, Jingyuan; Hornoch, Kamil; Kučáková, Hana; Taguchi, Kenta; Zhang, Jiashuo; You, Jia; Wang, Binyu; Xu, Runwei; Wang, Weiye; Ren, Yuqing; Ding, Lanhe; Yan, Xiaochang; Zhang, Mi; Wang, Wei-Hao; Bond, Howard E.; Williams, Robert; Zeimann, Gregory R.

Published

2024

Language

EN