1990ApJ...351L..21B

Query : 1990ApJ...351L..21B

1990ApJ...351L..21B - Astrophys. J., 351, L21-L24 (1990/March-1)

On the surface composition of cool, hydrogen-line white dwarfs: discovery of helium in the atmospheres of cool DA stars and evidence for convective mixing.

BERGERON P., WESEMAEL F., FONTAINE G. and LIEBERT J.

Abstract (from CDS):


Abstract Copyright: ∼

Journal keyword(s): Convection - Stars: Abundances - Stars: White Dwarfs

Simbad objects: 34

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Number of rows : 34
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 EGGR 381 WD* 00 12 14.7449947981 +50 25 20.736275736   14.6   14.2   DA7.6 106 0
2 BD+43 100B WD* 00 33 02.8475221080 +44 44 13.142887800   16.89   16.8   DA4.8 52 0
3 LAWD 5 WD* 00 35 35.8382124422 +01 53 08.626899670   15.76 15.52 15.6   DA4.6 69 0
4 EGGR 7 WD* 01 03 49.9225512196 +05 04 30.568726390   14.295 13.972 14.030   DA5.9 102 0
5 GD 275 WD* 01 18 54.1937395128 +52 27 13.721933304 15.33 15.88 15.68 15.654 15.710 DA4.6 33 0
6 V* ZZ Cet WD* 01 36 13.6153974672 -11 20 32.632874601   14.328 14.16 14.4   DA4.0 307 0
7 EGGR 168 WD* 02 11 20.8420869594 +39 55 21.516404474   14.80 14.50 14.4   DAZ6.9 121 0
8 GD 25 WD* 02 16 16.3515691488 +39 51 25.411561956   14.77   14.6   DA5.4 64 0
9 LAWD 14 WD* 03 28 48.7986016948 -27 19 00.096684530   14.0 13.56     DA5.4 81 1
10 EGGR 317 WD* 04 43 58.5619847694 +51 06 27.326248461   16.17 15.96 15.9   DA5.8 43 0
11 GD 66 WD* 05 20 38.3165748936 +30 48 23.922603900   15.78 15.56     DA4.1 81 1
12 GD 69 WD* 05 36 20.2147083168 +41 29 55.622008464   15.07 14.75     DA6.5 58 0
13 GD 290 WD* 05 47 56.3423408688 +57 59 22.479576360   16.0       DA5.1 42 0
14 EGGR 484 WD* 06 47 22.1508576098 +02 31 08.914947169   16.00   15.7   DA7.0 60 0
15 GD 83 WD* 07 13 21.6003767184 +21 34 06.914091576   15.48   15.1   DA4.7 38 0
16 EGGR 486 WD* 08 34 00.2629335600 +36 59 24.117660204   15.6   15.85   DA5.5 30 0
17 Ton 953 WD* 08 49 09.4771157184 +34 29 47.732590248   15.99 15.72     DA6.6 71 0
18 PG 0901+140A WD* 09 04 02.8377189144 +13 49 15.005995392   15.94 15.62     DA5.4 30 0
19 Ton 17 WD* 09 33 41.0503843080 +29 11 23.317392732   16.14   15.8   DA6.0 60 0
20 EGGR 69 WD* 09 57 48.3483199086 +24 32 55.543566200   15.34 15.09 14.4   DA5.8 72 0
21 Ross 627 WD* 11 24 12.9710801226 +21 21 35.569805995       14.28   DA6.8 124 0
22 LAWD 38 WD* 11 50 20.1723452944 +25 18 32.765299925   15.78   15.4   DA5 66 0
23 PG 1237-029 WD* 12 40 09.5527995480 -03 10 14.173232880   16.04 15.90 15.7   DA4.9 44 0
24 EGGR 92 WD* 12 47 14.7133704150 +14 42 30.875986658   16.08   15.9   DA4.6 66 0
25 V* DU Dra WD* 13 52 11.0036780664 +65 24 57.126049128   15.7   15.3   DA4.1 75 0
26 GD 165 WD* 14 24 39.1495824408 +09 17 14.160753960   14.46 14.32 14.6 14.91 DA4.1 176 0
27 GD 340 WD* 15 09 38.8624495200 +63 32 25.476862596   15.0 14.7     DA4.8 50 1
28 LAWD 80 WD* 20 10 17.5214260072 -21 46 45.798289597   14.60 14.58 14.5   DA5.0 59 0
29 EGGR 377 WD* 21 02 02.6729184951 +19 12 57.675215105   16.77   16.2   DA7.2 49 0
30 EGGR 447 WD* 21 13 45.9283084882 +26 21 33.292905589   14.94   14.9   DA5.8 52 0
31 EGGR 151 WD* 21 54 06.4513977984 -01 17 09.525582096   14.728 14.515 14.373 13.990 DA5.5 61 0
32 EGGR 154 WD* 22 43 04.7716526736 -01 27 53.454364452   16.52 16.21 16.1   DA5.4 47 0
33 EGGR 155 WD* 22 49 05.5507896558 +22 36 31.991540832   14.55   13.8   DA4.7 111 0
34 HD 216777B WD* 22 55 49.4725742919 -07 50 02.387855249   16.92 16.50     DA7.4 82 0

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