SIMBAD references

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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