2021RAA....21...34G


Query : 2021RAA....21...34G

2021RAA....21...34G - Research in Astron. and astroph., 21, 34-34 (2021/March-0)

He-shell flashes on the surface of oxygen-neon white dwarfs.

GUO Y.-L., LIU D.-D., WU C.-Y. and WANG B.

Abstract (from CDS):

Accretion induced collapse (AIC) may be responsible for the formation of some interesting neutron star binaries (e.g., millisecond pulsars, intermediate-mass binary pulsars, etc). It has been suggested that oxygen-neon white dwarfs (ONe WDs) can increase their mass to the Chandrasekhar limit by multiple He-shell flashes, leading to AIC events. However, the properties of He-shell flashes on the surface of One WDs are still not well understood. In this article, we aim to study He-shell flashes on the surface of One WDs in a systematic approach. We investigated the long-term evolution of ONe WDs accreting He-rich material with various constant mass-accretion rates by time-dependent calculations with the stellar evolution code Modules for Experiments in Stellar Astrophysics (MESA), in which the initial ONe WD masses range from 1.1 to 1.35 M☉. We found that the mass-retention efficiency increases with the ONe WD mass and the mass-accretion rate, whereas both the nova cycle duration and the ignition mass decrease with the ONe WD mass and the mass-accretion rate. We also present the nuclear products in different accretion scenarios. The results presented in this article can be used in the future binary population synthesis studies of AIC events.

Abstract Copyright: © 2021 National Astronomical Observatories

Journal keyword(s): stars: evolution - binaries: close - supernovae: general - white dwarfs

Simbad objects: 12

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Number of rows : 12
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 HD 49798 HXB 06 48 04.7001531360 -44 18 58.436036028 6.758 8.017 8.287 8.391 8.543 sdO6 339 0
2 V* V445 Pup No* 07 37 56.8797787992 -25 56 58.837610328       13.654 12.849 ~ 197 0
3 V* AM CVn CV* 12 34 54.6231062664 +37 37 44.120620056   14.02 14.13 14.47   DBnnp 434 0
4 CD-30 11223 HS* 14 11 16.1541452856 -30 53 03.700889340   12.101 12.296 12.659 12.541 sdB+DA 78 0
5 PSR J1802-2124 Psr 18 02 05.334393 -21 24 03.67600           ~ 101 1
6 V* V693 CrA No* 18 41 57.8 -37 31 14           ~ 125 0
7 V* V838 Her No* 18 46 31.4714863335 +12 14 02.104189516           ~ 304 0
8 V* V1370 Aql No* 19 23 21.2448589896 +02 29 26.326100040           ~ 172 0
9 KPD 1930+2752 HS* 19 32 14.8088063952 +27 58 35.445679608 12.80 13.75 13.82     sdB 167 0
10 V* QU Vul No* 20 26 46.0200167016 +27 50 43.163406959           ~ 277 0
11 V* V1974 Cyg No* 20 30 31.6546001712 +52 37 50.837478240           ~ 597 0
12 V* V1668 Cyg No* 21 42 35.3128941397 +44 01 54.435904913           ~ 233 0

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