2019AcA....69...55B

Query : 2019AcA....69...55B

2019AcA....69...55B - Acta Astron., 69, 55-62 (2019/March-0)

One New Variable Candidate and Six Non-variable Stars at the ZZ Ceti Instability Strip.

BOGNAR Z., KALUP C. and SOLOR A.

Abstract (from CDS):

We present our results on the continuation of our survey searching for new ZZ Ceti stars, inspired by the recently launched TESS space mission. The seven targets were bright DA-type white dwarfs located close to the empirical ZZ Ceti instability strip. We successfully identified one new pulsator candidate, namely PM J22299+3024, derived detection limits for possible pulsations of four objects for the first time, and determined new detection limits for two targets.

Abstract Copyright: ∼

Journal keyword(s): Stars: oscillations white dwarfs - Techniques: photometric

Simbad objects: 7

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Number of rows : 7
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 GD 429 WD* 04 21 27.8797089792 +70 14 19.366567548   14.85   15.0   DA4.1 35 0
2 Ton 451 WD* 09 47 34.6933246656 +26 01 37.652760336   16.69 16.48 15.70   DA4.5 17 0
3 LP 19-411 WD* 11 54 43.4508776976 +79 14 32.460591516   15.8   15.8   DA 18 0
4 GD 340 WD* 15 09 38.8624495200 +63 32 25.476862596   15.0 14.7     DA4.8 50 1
5 PM J18073+0357 WD* 18 07 23.3762734320 +03 57 01.804199688     15.08     DA 18 0
6 GALEX J222958.1+302409 WD* 22 29 58.0768879008 +30 24 10.009386072   16.364 16.161 16.230   DA 23 0
7 EGGR 155 WD* 22 49 05.5507896558 +22 36 31.991540832   14.55   13.8   DA4.7 111 0

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