Discovery of Two New Eruptions of the Ultrashort Recurrence Time Nova M31N 2017-01e*
Year: 2024
Type: article
Abstract: 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, ∼2 months earlier than predicted. In addition to this recent eruption, a search of archival Palomar Transient Factory data has revealed a previously unreported eruption on 2014 June 18.46 UT that reached a peak brightness of R ∼ 17.9 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 〈T rec〉 = 924.0 ± 7.0 days (2.53 ± 0.02 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 ∼20.5 mag evolved B star displaying an ∼14.3 days photometric modulation.
Source: Research Notes of the AAS
Authors: Allen W. Shafter, Jingyuan 经远 Zhao 赵, Kamil Hornoch, Hana Kučáková, Kenta Taguchi, Jiashuo 家硕 Zhang 张, Jia 嘉 You 游, Binyu 彬羽 Wang 王, Runwei 润玮 Xu 许, Weiye 炜晔 Wang 王, Yuqing 育庆 Ren 任, Lanhe 岚贺 Ding 丁, Xiaochang 小畅 Yan 严, Mi 宓 Zhang 张, Wei-Hao 为豪 Wang 王, Howard E. Bond, Robert Williams, Gregory R. Zeimann
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4403298867