2005A&A...438.1013G

Query : 2005A&A...438.1013G

2005A&A...438.1013G - Astronomy and Astrophysics, volume 4381013-1020 (2005/8-2)

On the excitation of PG1159-type pulsations.

GAUTSCHY A., ALTHAUS L.G. and SAIO H.

Abstract (from CDS):

Stability properties are presented of dipole and quadrupole nonradial oscillation modes of model stars that experienced a late helium shell flash on their way to the white-dwarf cooling domain. The computed instability domains are compared with the observed hot variable central stars of planetary nebulae and the GW Vir pulsators.

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Journal keyword(s): stars: evolution - stars: white dwarfs - stars: oscillations

Simbad objects: 5

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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 PG 0122+200 WD* 01 25 22.5121704552 +20 17 56.963079924   16.2   16.9   DOZ.7 117 0
2 V* GW Vir WD* 12 01 45.9731868264 -03 45 40.628670300   14.87 15.04     DOQZ1 505 0
3 PG 1707+427 WD* 17 08 47.6869215528 +42 41 00.558430656           PG1159 120 0
4 MWP 1 PN 21 17 08.2817782392 +34 12 27.415995372   12.731 13.082 13.379   PG1159 199 0
5 V* IR Peg WD* 21 34 08.2124719240 +06 50 57.662044329   16.15       PG1159 122 0

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