Volume 368, Number 1, March II 2001
|Page(s)||205 - 211|
|Section||Interstellar and circumstellar matter|
|Published online||15 March 2001|
Hypersonic collision of a blast wave on a low-mass star
Departament de Física i Enginyeria Nuclear, UPC, Sor Eulàlia d'Anzizu s/n, B5, 08034 Barcelona, Spain e-mail: firstname.lastname@example.org; email@example.com; firstname.lastname@example.org
2 Institut d'Estudis Espacials de Catalunya, Gran Capità 2-4, 08034 Barcelona, Spain
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 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
© ESO, 2001
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