Table 1
Observed eruptions of M31N 2008-12a.
| t max, optical a | t max, X − ray b | Time since last | Source | References |
| (UT) | (UT) | eruption (days)c | ||
|
|
||||
| 1992 Feb. 05 | X-ray (ROSAT) | 1 | ||
| 1993 Jan. 11 | 341 | X-ray (ROSAT) | 1 | |
| 2001 Sep. 08 | X-ray (Chandra) | 2 | ||
| 2008 Dec. 26 | Optical | 3 | ||
| 2009 Dec. 03 | 342 | Optical (PTF) | 4 | |
| 2011 Oct. 23.49 | 689 (~368/337†) | Optical | 4, 5, 6, 7 | |
| 2012 Oct. 19.72 | 362.2 | Optical | 7, 8, 9 | |
| <2012 Nov. 06.45 | X-ray (Swift) | 10 | ||
| 2013 Nov. 28.60 | 405.1 | Optical (iPTF) | 4, 7, 11, 12 | |
| 2013 Dec. 05.9 ± 0.2 | X-ray (Swift) | 4, 10 | ||
| 2014 Oct. 03.7 ± 0.1 | 309.1 | Optical (LT) | 7 | |
| 2014 Oct. 13.6 | X-ray (Swift) | 13 | ||
Notes. An updated version of Table 1 from TBW14.
Time since last eruption only quoted when consecutive detections are believed to relate to consecutive eruptions.
Assuming a missed eruption on or around 2010 Oct. 20 or 2010 Nov. 20 (see Cao et al. 2012, and TBW14 for a detailed discussion about a potential 2010 eruption).
Reference. (1) White et al. (1995); (2) Williams et al. (2004); (3) Nishiyama & Kabashima (2008); (4) Tang et al. (2014); (5) Korotkiy & Elenin (2011); (6) Barsukova et al. (2011); (7) this paper; (8) Nishiyama & Kabashima (2012); (9) Shafter et al. (2012); (10) Henze et al. (2014b); (11) Tang et al. (2013); (12) Darnley et al. (2014a); (13) Henze et al. (2015).
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