2003A&A...398..283B


Query : 2003A&A...398..283B

2003A&A...398..283B - Astronomy and Astrophysics, volume 398283-285 (2003/1-4)

PG 1613+426: A new sdB pulsator.

BONANNO A., CATALANO S., FRASCA A., MIGNEMI G. and PATERNO L.

Abstract (from CDS):

We report the detection of short period oscillations in the hot subdwarf B (sdB) star PG 1613+426 from time-series photometry carried out with the 91-cm Cassegrain telescope of the Catania Astrophysical Observatory. This star, which is brighter than the average of the presently known sdB pulsators, with B=14.14mag, has Teff=34400K and logg=5.97, its position is near the hot end of the sdB instability strip, and it is a pulsator with a well observed peak in the power spectrum at 144.18±0.06s. This star seems to be well suited for high precision measurements, which could detect a possible multi-mode pulsation behaviour.

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Journal keyword(s): stars: subdwarfs - stars: oscillations - stars: individual: PG 1613+426

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 V* DW Lyn HS* 07 07 09.7960158264 +60 38 50.159268348   14.7   15.34   sdB 61 1
2 V* DV Lyn HS* 08 19 17.7185616456 +42 33 38.726792712   16.021 16.366     sdOB 34 0
3 PG 1325+102 HS* 13 27 48.5600155368 +09 54 51.049107756   13.73 13.98 14.29   sdBO 60 1
4 PG 1613+426 HS* 16 14 46.9286241816 +42 27 35.946945648   13.99 14.39 14.76   sdOA 33 0
5 HS 2149+0847 HS* 21 51 54.3268752696 +09 01 21.014967612   16.4   15.8   sdOB 16 0
6 PG 2303+019 HS* 23 06 22.3561075224 +02 09 05.952751128   16.2 16.23 16.2   sdB 20 0

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