2002MNRAS.332...34W

Query : 2002MNRAS.332...34W

2002MNRAS.332...34W - Mon. Not. R. Astron. Soc., 332, 34-36 (2002/May-1)

Radial velocity study of the pulsating subdwarf B star and possible Type Ia supernova progenitor KPD 1930+2752.

WOOLF V.M., JEFFERY C.S. and POLLACCO D.L.

Abstract (from CDS):

We report the results of a high-time-resolution radial velocity study of the subdwarf B star and possible Type Ia supernova progenitor KPD 1930+2752. There were no significant peaks in the power spectrum of the velocity curve above our detection limit, about 4km.s–1, at the frequencies where peaks arising from pulsation were present in the photometric data of previous researchers. We report an orbital velocity amplitude, 348.5±1km.s–1, in agreement with that reported by previous investigators. We find an orbital period of P =0.09509308±0.00000015d based on our data and the ephemeris of Maxted et al.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): binaries: spectroscopic - stars: individual: KPD 1930+2752 - subdwarfs - stars: variables: other

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* EO Cet HS* 01 23 43.2471248112 -05 05 45.831024564   12.21 12.65     sdOV+F4V 68 0
2 V* V361 Hya HS* 14 05 33.018072 -27 01 34.01328   15.446 15.258 15.161   sdB+ 129 0
3 PG 1605+072 HS* 16 08 03.6872637792 +07 04 28.748468964   12.53 12.83 13.18   sdB0.2VIHe3 136 0
4 KPD 1930+2752 HS* 19 32 14.8088063952 +27 58 35.445679608 12.80 13.75 13.82     sdB 167 0
5 KPD 2109+4401 HS* 21 11 47.6445824136 +44 13 50.620755936 12.14 13.11 13.30 13.64   sdB 72 0

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