2002MNRAS.333...84H


Query : 2002MNRAS.333...84H

2002MNRAS.333...84H - Mon. Not. R. Astron. Soc., 333, 84-92 (2002/June-2)

On the accretion mode of the intermediate polar V1025 Centauri.

HELLIER C., WYNN G.A. and BUCKLEY D.A.H.

Abstract (from CDS):

The long white-dwarf spin periods in the magnetic cataclysmic variables EX Hya and V1025 Cen imply that if the systems possess accretion discs then they cannot be in equilibrium. It has been suggested that instead they are discless accretors in which the spin-up torques resulting from accretion are balanced by the ejection of part of the accretion flow back towards the secondary. We present phase-resolved spectroscopy of V1025 Cen aimed at deducing the nature of the accretion flow, and compare this with simulations of a discless accretor. We find that both the conventional disc-fed model and the discless-accretor model have strengths and weaknesses, and that further work is needed before we can decide which applies to V1025 Cen.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): accretion, accretion discs - binaries: close - stars: individual: V1025 Cen - novae, cataclysmic variables

Simbad objects: 5

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Number of rows : 5
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 V* SW Sex CV* 10 15 09.3769935988 -03 08 32.850732738           ~ 223 0
2 V* V1025 Cen CV* 12 38 16.3191432264 -38 42 45.836441856   15.20       ~ 90 0
3 V* EX Hya CV* 12 52 24.2222471899 -29 14 55.999766523   13.505 13.491 13.549   M5-6V 730 0
4 V* V2400 Oph CV* 17 12 36.4233668016 -24 14 44.773987164     14.5     ~ 169 0
5 V* FO Aqr CV* 22 17 55.3796835600 -08 21 03.754995948   13.533 13.445 13.414   ~ 378 0

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