2014MNRAS.445.4247K


Query : 2014MNRAS.445.4247K

2014MNRAS.445.4247K - Mon. Not. R. Astron. Soc., 445, 4247-4251 (2014/December-3)

The orbital periods of three sdB eclipsing binary systems.

KILKENNY D.

Abstract (from CDS):

Recent timings of eclipses made between 2011 and 2014 are presented for three binary systems with hot subdwarf primary stars, AA Dor, NY Vir and EC 10246-2707. In the case of AA Dor, the period remains constant. In NY Vir, a rapidly pulsating sdBVr with a cool companion, the period change now appears more complex than can be described by a simple quadratic. EC 10246-2707, which has previously appeared to have a constant period, now appears to be showing a significant period increase. The effect of gravitational radiation in HW Vir-like systems is briefly discussed.

Abstract Copyright: © 2014 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): binaries: eclipsing - stars: individual: AA Dor - stars: individual: EC 10246-2707 - stars: individual: NY Vir

CDS comments: In Introduction CD-11 11223 is a misprint for CD-30 11223.

Simbad objects: 9

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Number of rows : 9
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 HD 269696 HS* 05 31 40.3594532592 -69 53 02.153902236 9.74 10.92 11.15     sdB+dM 202 0
2 V* V470 Cam HS* 07 10 42.0513241680 +66 55 43.521505680           sdB+dM 118 0
3 EC 10246-2707 HS* 10 26 56.4747793032 -27 22 57.097779564   14.56 14.77 14.85   sdB+dM 31 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 CD-30 11223 HS* 14 11 16.1541452856 -30 53 03.700889340   12.101 12.296 12.659 12.541 sdB+DA 78 0
7 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 1032 1
8 KPD 1930+2752 HS* 19 32 14.8088063952 +27 58 35.445679608 12.80 13.75 13.82     sdB 167 0
9 V* V1828 Aql HS* 20 20 00.4587151080 +04 37 56.517736296   12.9   13.34   sdOB+dM 77 1

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