2022RNAAS...6..214S

Query : 2022RNAAS...6..214S

2022RNAAS...6..214S - Research Notes of the AAS, 6, 214 (2022/October-0)

M31N 1926-07c: A Recurrent Nova in M31 with a 2.8 yr Recurrence Time.

SHAFTER A.W., HORNOCH K., KUCAKOVA H., ZHAO J., ZHANG M., GAO X., DELLA COSTA J., BURRIS W.A., CLARK J.G., WOLF M. and ZASCHE P.

Abstract (from CDS):

The M31 recurrent nova M31N 1926-07c has had five recorded eruptions. Well-sampled light curves of the two most recent outbursts, in 2020 January (M31N 2020-01b) and 2022 September (M31N 2022-09a), are presented showing that the photometric evolution of the two events were quite similar, with peak magnitudes of R = 17.2 ± 0.1 and R = 17.1 ± 0.1, and t₂ times of 9.7 ± 0.9 and 8.1 ± 0.5 days for the 2020 and 2022 eruptions, respectively. After considering the dates of the four most recent eruptions (where the cycle count is believed to be known), a mean recurrence interval of 〈P_rec〉 = 2.78 ± 0.03 yr is found, establishing that M31N 1926-07c has one of the shortest recurrence times known.

Journal keyword(s): Novae - Cataclysmic variable stars - Recurrent novae - Andromeda Galaxy - Time domain astronomy

Simbad objects: 7

Full paper

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Number of rows : 7

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Sp type	#ref 1850 - 2026	#notes
1	M 31	AGN	00 42 44.330	+41 16 07.50	4.86	4.36	3.44	~	13622	1
2	AT 2020ber	No*	00 42 52.36	+41 16 13.0				~	14	0
3	M31N 2022-09a	No*	00 42 52.38	+41 16 13.2				~	5	0
4	M31N 1926-07c	No*	00 42 53.37	+41 15 43.7			18.20	~	13	0
5	AT 2020yug	No*	00 42 57.74	+41 08 12.1			17.30	~	40	0
6	TCP J00441072+4154221	No*	00 44 10.72	+41 54 22.1				~	13	0
7	RX J0045.4+4154	No*	00 45 28.80	+41 54 10.1				~	263	1

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