2014MNRAS.439..954S


Query : 2014MNRAS.439..954S

2014MNRAS.439..954S - Mon. Not. R. Astron. Soc., 439, 954-967 (2014/March-3)

A pre-explosion optical transient event from a white dwarf merger with a giant supernova progenitor.

SABACH E. and SOKER N.

Abstract (from CDS):

We examine rare evolutionary routes of binary systems where the initially more massive primary star of M1,0 ≃ 5.5-8.5M☉ forms a white dwarf (WD), while the secondary star of 4M☉ ≲ M2, 0 < M1, 0 accretes mass from the evolved primary and later terminates as a core-collapse supernova (CCSN). In such a WD-NS (neutron star) reverse evolution a NS or a potential NS-progenitor massive core is formed after the WD. These SN explosions are likely to be preceded by strong interaction of the WD with the giant secondary's core, leading to an Intermediate-Luminosity Optical Transient (ILOT; Red Transient; Red Nova) event weeks to years before the explosion. The common envelope phase of the WD and the giant ends with a merger that forms an ILOT, or an envelope ejection that leads, after a CCSN of the giant's core, to a NS-NS or WD-NS surviving binary. The WD could suffer a thermonuclear explosion that might be observed as a Type Ia SN. Most of these CCSN and thermonuclear explosions will be peculiar. We calculate the stellar evolution of representative cases using Modules for Experiments in Stellar Astrophysics (MESA). The occurrence rate of these systems is ∼ 3-5 percent of that of CCSNe.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): stars: supernovae - stars: massive - stars: variables: general

Simbad objects: 8

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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 - 2026
#notes
1 AT 2008jd ev 00 54 34.16 -37 38 28.6           ~ 134 1
2 V* V838 Mon CV* 07 04 04.8221494992 -03 50 50.648894412       15.181 14.51 M10+B3V 462 1
3 * eta Car s*b 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2543 0
4 PSR J1141-6545 Psr 11 41 07.00060 -65 45 19.0500     25.08 24.38   ~ 207 1
5 SN 2010mc SN* 17 21 30.68 +48 07 47.4           SNIIn 101 1
6 V* V1309 Sco CV* 17 57 32.9368332984 -30 43 09.965039880           ~ 320 0
7 OGLE-2002-BLG-360 CV* 17 57 39.0404346105 -29 46 05.762196592           ~ 57 0
8 PSR J2305+4707 Psr 23 05 55.842 +47 07 45.32           ~ 227 1

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