EDP Sciences
Free access
Volume 368, Number 1, March II 2001
Page(s) 205 - 211
Section Formation, structure and evolution of stars
DOI http://dx.doi.org/10.1051/0004-6361:20000563

A&A 368, 205-211 (2001)
DOI: 10.1051/0004-6361:20000563

Hypersonic collision of a blast wave on a low-mass star

D. García-Senz1, 2, N. Serichol1 and E. Bravo1, 2

1  Departament de Física i Enginyeria Nuclear, UPC, Sor Eulàlia d'Anzizu s/n, B5, 08034 Barcelona, Spain
    e-mail: domingo.garcia@upc.es; nuria.serichol@upc.es; eduardo.bravo@upc.es
2  Institut d'Estudis Espacials de Catalunya, Gran Capità 2-4, 08034 Barcelona, Spain

(Received 4 October 2000 / Accepted 19 December 2000)

When a neutron star is born as a result of the accretion-induced collapse (AIC) of a white dwarf, a small but significant fraction of its mass can be simultaneously expelled at a velocity of around 104 km s-1. In this paper we study the collision between the gas ejected during the AIC of a white dwarf and a 0.3 $M_{\odot}$ main-sequence star by using numerical simulation techniques. We found that, for a plausible combination of the orbital parameters and impact energy, the low-mass star is completely destroyed. This scenario can help to explain the origin of isolated millisecond pulsars.

Key words: hydrodynamics -- stars: supernovae: general -- stars: pulsars: general

Offprint request: D. García-Senz

SIMBAD Objects

© ESO 2001