| Issue |
A&A
Volume 368, Number 2, March III 2001
|
|
|---|---|---|
| Page(s) | L5 - L7 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20010140 | |
| Published online | 15 March 2001 | |
On the duration of the subsonic propeller state of neutron stars in wind-fed mass-exchange close binary systems
1
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
2
Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, Pulkovo 65-1, 196140 Saint-Petersburg, Russia
Received:
2
January
2001
Accepted:
25
January
2001
The condition for the subsonic propeller
accretor state transition of neutron stars in wind-fed mass-exchange
binary systems is discussed. I show that the value of the break
period, at which the neutron star change its state to accretor,
presented by Davies & Pringle ([CITE]) is underestimated by a
factor of 7.5. The correct value is 
s. This
result forced us to reconsider some basic conclusions on the
efficiency of the propeller spindown mechanism.
Key words: accretion / propeller spindown / stars: close binaries / stars: neutron star
© ESO, 2001
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