2011MNRAS.412..487K

Query : 2011MNRAS.412..487K

2011MNRAS.412..487K - Mon. Not. R. Astron. Soc., 412, 487-491 (2011/March-3)

The orbital periods of AA Dor and NY Vir.

KILKENNY D.

Abstract (from CDS):

New timings of eclipses made between 2000 and 2010 are presented for two binary systems with hot subdwarf primary stars. In the case of AA Dor, an sdOB star with a very cool secondary, the period is found to be constant at a level of about 10–14 d per orbit. In the case of NY Vir, a rapidly pulsating sdBVr with a cool companion, the period is discovered to be decreasing at a rate of -11.2 {x} 10–13 d per orbit.

Abstract Copyright: 2011 The Author Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): binaries: eclipsing - stars: individual: AA Dor - stars: individual: NY Vir

Simbad objects: 6

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Number of rows : 6
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
2 HD 269696 HS* 05 31 40.3594532592 -69 53 02.153902236 9.74 10.92 11.15     sdB+dM 202 0
3 V* V470 Cam HS* 07 10 42.0513241680 +66 55 43.521505680           sdB+dM 118 0
4 BD-07 3477 HS* 12 44 20.2386233232 -08 40 16.846099536   10.46 10.594 10.895   sdB2VIIHe3 303 1
5 V* NY Vir HS* 13 38 48.1466908176 -02 01 49.207286748   13.43 13.66 13.75   sdB1VIIHe1 237 1
6 KPD 1930+2752 HS* 19 32 14.8088063952 +27 58 35.445679608 12.80 13.75 13.82     sdB 167 0

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