1997A&A...322..155V


Query : 1997A&A...322..155V

1997A&A...322..155V - Astronomy and Astrophysics, volume 322, 155-158 (1997/6-1)

New ZZ Ceti variables from the Kiso survey.

VAUCLAIR G., DOLEZ N., FU J.N. and CHEVRETON M.

Abstract (from CDS):

We report the discovery of two new pulsating DA white dwarfs from the Kiso survey of ultraviolet-excess objects. The candidates were selected from their (B-V) and (U-B) color indices. The observations have been performed at the Haute Provence Observatory 1.9m telescope. The new pulsating DA white dwarfs are KUV08368+4026 and KUV11370+4222. KUV08368+4026 shows large amplitude variations and at least two frequencies at 1.62±0.11mHz (Period=618.0±44s) and at 2.02±0.11mHz (Period=494.5±28s). KUV11370+4222 shows a much smaller amplitude and a higher frequency at 3.89±0.10mHz (Period=257.2±6.5s). More observations are needed to confirm additional periods certainly present in these non radial pulsators. The discovery of these two new ZZ Ceti variables increases the number of known pulsating white dwarfs of this type to 26.

Abstract Copyright:

Journal keyword(s): white dwarfs - stars: oscillations - variables - surveys

CDS comments: RX J2117+3412 = RX J2117.1+3412

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 - 2022
#notes
1 HL Tau 76 WD* 04 18 56.6378191680 +27 17 48.314513652   15.40       DA4.3 133 0
2 KUV 08368+4026 WD* 08 40 07.7135286864 +40 15 03.726378396   15.84 15.64 15.95   DA4.1 29 0
3 V* IZ UMa WD* 11 39 41.4106847280 +42 05 18.429389196     16.56     DA4.1 33 0
4 V* BT Cam WD* 12 01 44.5758064464 +80 04 59.697402168   15.9   16.2   DA4.3 42 0
5 EC 14012-1446 WD* 14 03 57.1692959280 -15 01 10.577565696   15.86 15.67 15.89   DA4.1 49 0
6 MWP 1 PN 21 17 08.2817782392 +34 12 27.415995372     12.33     PG1159 179 0
7 V* ZZ Psc WD* 23 28 47.6365087803 +05 14 54.235051503   13.17   13.0   DA4.1 460 0
8 V* HW Aqr WD* 23 51 22.0904044560 -24 08 17.326740768   15.52   15.1   DA4.2 37 0

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2022.07.02-17:07:02

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