2004NewA....9..565K

Query : 2004NewA....9..565K

2004NewA....9..565K - New Astronomy, 9, 565-572 (2004/September-0)

Two new EC14026 stars: PG 0048+091 and PG 0154+182.

KOEN C., O'DONOGHUE D., KILKENNY D. and POLLACCO D.L.

Abstract (from CDS):

We present new time-resolved photometry for two sdB stars, PG 0048+091 and PG 0154+182, which clearly shows them to be rapidly pulsating stars of the "EC14026" class. In PG 0048+091 we detect, with some confidence, seven frequencies between 5252 and 9368 muHz corresponding to periods between 190 and 107 s. In PG 0154+182, for which our data are much sparser, we identify only a single frequency near 6090 muHz (164 s). New spectroscopy, combined with archival (2MASS) infrared photometry, indicates that PG 0048+091 has a companion of spectral type near G0V-G2V, whilst PG 0154+182 has a companion of later spectral type, probably in the range G5V-K5V.

Abstract Copyright: ∼

Journal keyword(s): Stars: variables: other - Stars: oscillations - Stars: individual: PG 0048+091 - Stars: individual: PG 0154+182

Simbad objects: 8

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Number of rows : 8
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 PG 0048+091 HS* 00 51 26.9371074840 +09 21 32.879383380   14.454 14.261 14.505   sdOB+F5V 37 0
2 V* BI Ari HS* 01 57 27.8862042360 +18 27 39.992930280   15.27       sdBO 21 0
3 V* XY Sex HS* 10 20 14.4716431344 -08 53 46.406162688   14.46 14.43     sdB 40 0
4 V* UX Sex HS* 10 25 17.3363524296 -09 20 40.570885644   15.89       sdB+ 30 0
5 BD-07 3477 HS* 12 44 20.2386233232 -08 40 16.846099536   10.46 10.594 10.895   sdB2VIIHe3 303 1
6 V* NY Vir HS* 13 38 48.1466908176 -02 01 49.207286748   13.43 13.66 13.75   sdB1VIIHe1 237 1
7 V* V361 Hya HS* 14 05 33.018072 -27 01 34.01328   15.446 15.258 15.161   sdB+ 129 0
8 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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