2013MNRAS.433.2884I


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.09CEST16:58:50

2013MNRAS.433.2884I - Mon. Not. R. Astron. Soc., 433, 2884-2892 (2013/August-3)

The fate of a WD accreting H-rich material at high accretion rates.

IDAN I., SHAVIV N.J. and SHAVIV G.

Abstract (from CDS):

We study C/O white dwarfs (WDs) with masses of 1.0-1.4M☉ accreting solar-composition material at very high accretion rates. We address the secular changes in the WDs, and in particular, the question whether accretion and the thermonuclear runaways result is net accretion or erosion. The present calculation is unique in that it follows a large number of cycles, thus revealing the secular evolution of the WD system. We find that counter to previous studies, accretion does not give rise to steady-state burning. Instead, it produces cyclic thermonuclear runaways of two types. During most of the evolution, many small cycles of hydrogen ignition and burning build a helium layer over the surface of the WD. This He layer gradually thickens and progressively becomes more degenerate. Once a sufficient amount of He has accumulated, several very large helium burning flashes take place and expel the accreted envelope, leaving no net mass accumulation. Thus, the multicycle evolution has a notable effect on the overall behaviour of the WD system - under the assumptions considered, such a scenario will not lead to an accretion-induced collapse, nor will it produce a Type Ia supernova, unless a major new physical process is found.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): novae, cataclysmic variables - supernovae: general

Status at CDS:  

Simbad objects: 8

goto Full paper

goto View the reference in ADS

Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 659 1
2 SNR B0509-67.5 SNR 05 09 31 -67 31.3           ~ 194 0
3 V* V445 Pup No* 07 37 56.8797662756 -25 56 58.836792684           ~ 141 0
4 PTF 11kx SN* 08 09 12.87 +46 18 48.8           SNIa 106 0
5 SN 2006X SN* 12 22 53.93 +15 48 32.0     15.3     SNIa 278 1
6 SN 2011fe SN* 14 03 05.711 +54 16 25.22   10.12 10.06     SNIa 491 1
7 V* RS Oph No* 17 50 13.1592776879 -06 42 28.481553668   12.29 4.30     OB+M2ep 918 0
8 SN 2007le SN* 23 38 48.45 -06 31 21.7     15.2     SNIa 102 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2013MNRAS.433.2884I and select 'bookmark this link' or equivalent in the popup menu


2020.04.09-16:58:50

© Université de Strasbourg/CNRS

    • Contact