2021MNRAS.501.3046F

Query : 2021MNRAS.501.3046F

2021MNRAS.501.3046F - Mon. Not. R. Astron. Soc., 501, 3046-3053 (2021/February-3)

Will post-nova V1315 Aql enter into hibernation?

FANG X. and QIAN S.

Abstract (from CDS):

In a hibernation scenario, systems after a nova outburst will exhibit high mass-transfer rates and change themselves into nova-like variables. The disc winds from the high-state disc bring away extra mass and angular momentum that affect evolution. Assuming the evolution is stable, we calculated the mass-transfer rate {dot}M2 and the effective mass-radius index ζ of the donor stars for nova-likes with respect to the mass-loss proportion α based on their secular orbital period variations, and we located their positions on the τ{dot}€ M2/ τKH-ζdiagram, where τ{dot}M2and tauKHare the mass–transfer and thermal time–scales, respectively. V1315 Aql, a nova–like star surrounded by a nova shell due to a nova eruption 500–1200 yr earlier, is an exemplar for the hibernation hypothesis. However, in comparison with other nova–likes, we found that the mass transfer in V1315 Aql is unstable, due to irradiation by the white dwarf and accretion, and we estimated its magnitude–decline rate as ∼10–4mag yr–1, which is consistent with long–term optical observations. Its time–scale of magnitude decline is comparable to the recurrence time–scale of nova eruption, which indicates that V1315 Aql will not enter into hibernation. This conclusion seems to confirm the prediction of Hillman et al. that a post–nova with orbital period >3 h will never hibernate deeply.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of The Royal Astronomical Society.

Journal keyword(s): binaries: close - binaries: eclipsing - stars: evolution - stars: individual: V1315 Aql - novae, cataclysmic variables - stars: winds, outflows

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* PX And CV* 00 30 05.8083597744 +26 17 26.437695936   15.38 14.88 14.69   ~ 124 0
2 V* TT Tri CV* 01 31 59.8601500776 +29 49 22.060466364           ~ 37 0
3 HS 0220+0603 CV* 02 23 01.6666894560 +06 16 49.639082700   15.6 15.9     ~ 32 0
4 V* RW Tri CV* 02 25 36.1556820000 +28 05 50.891220600   13.50 12.50     M0V 324 0
5 V* SW Sex CV* 10 15 09.3769935988 -03 08 32.850732738           ~ 223 0
6 V* DW UMa CV* 10 33 52.8751411128 +58 46 54.717259044   14.33   14.33 14.35 ~ 254 0
7 V* LX Ser CV* 15 38 00.0938074584 +18 52 03.244681812     15.06     G8Ve 162 0
8 V* V1315 Aql CV* 19 13 54.5308677240 +12 18 03.239745228   14.81 14.33 14.33   ~ 136 0
9 V* UU Aqr CV* 22 09 05.7613016472 -03 46 17.688853416   13.998 13.919 13.735   ~ 153 0

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