2014MNRAS.437.1836K

Query : 2014MNRAS.437.1836K

2014MNRAS.437.1836K - Mon. Not. R. Astron. Soc., 437, 1836-1839 (2014/January-2)

A search for p-mode pulsations in white dwarf stars using the Berkeley Visible Imaging Tube detector.

KILKENNY D., WELSH B.Y., KOEN C., GULBIS A.A.S. and KOTZE M.M.

Abstract (from CDS):

We present high-speed photometry (resolution 0.1 s) obtained during the commissioning of the Berkely Visible Imaging Tube system on the Southern African Large Telescope (SALT). The observations were an attempt to search for very rapid p-mode oscillations in white dwarf stars and included three DA stars known to be g-mode pulsators (ZZ Cet, HK Cet and AF Pic), one other DA star (WD 1056-384) not known to be variable and one AM Cvn star (HP Lib). No evidence was found for any variations greater than about 1mmag in amplitude ( ∼ 0.1per cent) at frequencies in excess of 60mHz (periods <17 s) in any of the target stars, though several previously known g-mode frequencies were recovered.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): instrumentation: photometers - stars: individual: ZZ Ceti - stars: individual: HK Ceti - stars: individual: AF Pic - stars: individual: HP Lib - stars: individual: WD 1056-384

Simbad objects: 5

goto Full paper

goto View the references in ADS

Number of rows : 5
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* ZZ Cet WD* 01 36 13.6153974672 -11 20 32.632874601   14.328 14.16 14.4   DA4.0 307 0
2 GD 1400 WD* 01 47 21.8246176800 -21 56 51.386849088   15.38 15.15 15.42   DA4.1 101 0
3 V* AF Pic WD* 05 33 06.7848149784 -56 03 53.377123392 15.42 16.40 16.28     DA4.3 35 0
4 1RXS J105820.6-384416 WD* 10 58 20.0990765856 -38 44 25.124543484   14.1 14.1 14.5   DA1.7 44 0
5 V* HP Lib CV* 15 35 53.0715009672 -14 13 12.215196048   13.55       Bpec 112 0

To bookmark this query, right click on this link: simbad:objects in 2014MNRAS.437.1836K and select 'bookmark this link' or equivalent in the popup menu