2009CoAst.159...99Q

Query : 2009CoAst.159...99Q

2009CoAst.159...99Q - Com. in Asteroseismology, 159, 99 (2009/March-0)

Asteroseismology and evolution of GW Vir stars.

QUIRION P.-O.

Abstract (from CDS):

We present a summary of current knowledge of the hot, pulsating, hydrogen deficient GW∼Vir stars. At \Teff≃120,000∼K and with an atmosphere composed mainly of helium, carbon, and oxygen, these pulsating stars are showing multiperiodic, intermediate- to high-order g∼modes. They include in their class some of the hottest white dwarfs and planetary nebulae. We present non-adiabatic asteroseismology results used to determine the atmospheric parameters of GW∼Vir stars. We also discuss some of the latest asteroseismology results using state of the art post-Asymptotic Giant Branch evolution models.

Abstract Copyright: ∼

Journal keyword(s):

Simbad objects: 20

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Number of rows : 20
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 LHA 115-S 2 s*b 00 43 11.6459400144 -73 23 10.745670156   12.02 12.0     B8Ia+ 42 0
2 NGC 246 PN 00 47 03.3420341616 -11 52 18.971126076 10.15 11.52 11.76 12.18   PG1159 489 0
3 PG 0122+200 WD* 01 25 22.5121704552 +20 17 56.963079924   16.2   16.9   DOZ.7 117 0
4 NGC 1501 PN 04 06 59.3920909320 +60 55 14.278542024   15.17 13.0     [WO4] 314 1
5 NGC 2371 PN 07 25 34.6883929008 +29 29 26.430252072   14.48 13.5     Oe 384 0
6 NGC 2867 PN 09 21 25.3832468160 -58 18 40.626683604   12.0 10.30     [WO2] 313 0
7 PN Lo 4 PN 10 05 45.7880109408 -44 21 33.523482384           sdO 146 1
8 V* GW Vir WD* 12 01 45.9731868264 -03 45 40.628670300   14.87 15.04     DOQZ1 505 0
9 ESO 576-2 IG 13 10 28.8 -21 35 12           ~ 9 0
10 NGC 5189 PN 13 33 32.8780414224 -65 58 27.041428272   14.1 14.5   14.35 [WO1] 331 1
11 HE 1429-1209 WD* 14 32 20.7451392024 -12 22 48.253478808   15.7 16.15 16.27   PG1159 32 0
12 PG 1501+664 WD* 15 02 09.6299323152 +66 12 19.148868324   16.07 16.37     DZQ1 163 0
13 PG 1707+427 WD* 17 08 47.6869215528 +42 41 00.558430656           PG1159 120 0
14 PN A66 43 PN 17 53 32.2767758208 +10 37 24.210757560   14.53 14.71     O7fk 144 0
15 PN K 1-16 PN 18 21 52.1086837968 +64 21 53.406292104   14.44 14.96 15.26   PG1159 258 0
16 NGC 6905 PN 20 22 22.9919225472 +20 06 16.285052088   16.3 14.5     [WC3] 362 0
17 MWP 1 PN 21 17 08.2817782392 +34 12 27.415995372   12.731 13.082 13.379   PG1159 199 0
18 V* IR Peg WD* 21 34 08.2124719240 +06 50 57.662044329   16.15       PG1159 122 0
19 NGC 7094 PN 21 36 52.9687364088 +12 47 19.099274136     13.650 13.775   sdB/sdO 207 0
20 V* V409 And WD* 23 27 15.9353097240 +40 01 23.429781408   14.1 15.41     DO 89 0

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