2005A&A...432.1025K


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.09CEST07:36:36

2005A&A...432.1025K - Astronomy and Astrophysics, volume 432, 1025-1032 (2005/3-4)

Metal traces in white dwarfs of the SPY (ESO SupernovaIa Progenitor Survey) sample.

KOESTER D., ROLLENHAGEN K., NAPIWOTZKI R., VOSS B., CHRISTLIEB N., HOMEIER D. and REIMERS D.

Abstract (from CDS):

We search for faint CaII lines in the spectra of about 800 apparently single white dwarfs observed at high resolution for the SPY (ESO Supernova Progenitor Survey) survey. Photospheric Ca is detected in 24 DAZ; in 25 mostly hot objects the observed lines must be interstellar. We also rediscover 9 strong H and K lines in helium-dominated atmospheres and discover for the first time faint lines in 8 DB. Most of these also show faint hydrogen lines and are thus classified DBAZ. The distribution of metal abundances is discussed and compared with the predictions of the accretion/diffusion scenario. We argue that the observations are easier to understand in a scenario of continuous ongoing accretion with rates varying with the conditions of the ambient medium, rather than with the strongly idealized ``two phase accretion/diffusion scenario'' of Dupuis et al. (1992ApJS...82..505D, 1993ApJS...84...73D, 1993ApJS...87..345D).

Abstract Copyright:

Journal keyword(s): stars: white dwarfs - stars: atmospheres - stars: abundances

Simbad objects: 66

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Number of rows : 66

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 RX J0029.9-6324 WD* 00 29 56.7251375846 -63 24 58.003184897   15.8 15.0 15.4   DA.8 42 0
2 Wolf 28 WD* 00 49 09.8984116191 +05 23 18.993107442 12.984 12.92 12.374 12.106 11.854 DZ7.5 219 0
3 HS 0047+1903 WD* 00 50 12.4544165064 +19 19 48.509321339   15.94 15.59 16.0   DAZ 10 0
4 Ton S 193 WD* 01 08 36.0346386218 -32 37 43.381351071   15.34 15.26 15.86   DAZ 22 0
5 JL 234 WD* 01 12 21.1412336124 -56 14 27.511721703   15.84 15.69     DBAZ 14 0
6 GD 1104 WD* 02 05 49.0456778283 -13 38 27.400082691   15.7       DA1.0 17 0
7 Feige 20 WD* 02 12 04.8544512774 +08 46 50.891227210   13.7 13.84 14.2   DA1.4 36 0
8 HE 0210-2012 WD* 02 13 01.8887844195 -19 58 34.363888825   16.0   16.4   DA 7 0
9 EGGR 565 WD* 02 46 30.8013439138 -02 27 23.459927248   16.34 15.38   15.09 DA7.4 54 0
10 GD 40 WD* 03 02 53.1038447765 -01 08 33.798642438   15.51 15.56     DBZ4 149 0
11 HS 0307+0746 WD* 03 10 09.1588235887 +07 57 32.076872124   17.1   16.6   DAZ 16 0
12 EGGR 566 WD* 03 25 11.0473248379 -01 49 15.047384952   16.8 16.22     DAZ 68 0
13 KUV 03290+0053 WD* 03 31 33.8935345896 +01 03 27.818292221   16.8 16.8 16.4   DA1.4 18 0
14 KUV 03301-0100 WD* 03 32 36.8682187338 -00 49 36.912555695   15.26 15.86 16.0   DA1.5 23 0
15 GD 56 WD* 04 11 02.1685298491 -03 58 22.586560976   15.64 15.50 15.1   DA3.3 65 0
16 HS 0424+0141 WD* 04 26 52.3930058016 +01 47 48.920977142   16.0   16.8   DA 6 0
17 RX J0443.1-0346 WD* 04 43 07.1641914106 -03 46 49.799287912   16.7 16.0 16.8   DA.8 33 0
18 HE 0449-2554 WD* 04 51 53.7468611339 -25 49 14.731481588 15.88 16.77 16.71     DBAZ 8 0
19 HS 0503+0154 WD* 05 05 39.2081185310 +01 58 29.082694972   15.1 15.3 15.7   DA 10 0
20 GD 257 WD* 05 50 37.5195814635 +00 05 52.619647637   14.80 15.10 15.1   DA1.1 65 0
21 PG 1015+161 WD* 10 18 03.8271425956 +15 51 58.565078247   15.70   15.2   DA2.5 59 0
22 GD 133 WD* 11 19 12.3989572558 +02 20 33.046829334   14.76 14.57 14.8   DA4.0 72 0
23 Ruiz 439-80 WD* 11 27 09.2524670230 -29 40 11.198530827   15.02 15.02 14.8   DA5.3 38 1
24 EC 11448-2438 WD* 11 47 20.1007366692 -24 54 56.935995715   15.5 15.71 15.6   DA1.6 11 0
25 EC 11507-1519 WD* 11 53 15.2581059987 -15 36 36.505821827   16.16 16.00 15.9   DA4.0 42 0
26 LP 852-7 WD* 12 05 26.6739742867 -23 33 12.140186272   13.04 12.90 12.66 12.52 DA5.7 41 0
27 LP 734-74 WD* 12 06 56.2916485636 -13 53 53.042045072   15.72 15.53 15.6   DA4.4 25 0
28 PG 1225-079 WD* 12 27 47.3585973005 -08 14 37.972964044   14.86 14.74 15.15   DZA4 56 0
29 HE 1225+0038 WD* 12 28 07.7274384270 +00 22 19.624696701   15.2   15.1   DAZ 21 1
30 EC 13123-2523 WD* 13 15 03.8729733700 -25 39 00.027954046   15.47 15.69     DA1 9 0
31 HE 1315-1105 WD* 13 17 47.2437026737 -11 21 06.029306163   15.8   15.6   DAZ 19 0
32 EC 13288-1515 WD* 13 31 34.8129764942 -15 30 47.398695087   15.14 15.49     DA.9 11 0
33 HE 1349-2305 WD* 13 52 44.1242662434 -23 20 05.390597853   17.9 16.3 16.6   DBAZ 25 0
34 PG 1352+004 WD* 13 55 32.4133609926 +00 11 23.938814098   15.72       DB4 27 0
35 PG 1457-086 WD* 14 59 52.9904888426 -08 49 29.647009899   15.68 15.77 15.8   DA2.3 39 0
36 PG 1614+160 WD* 16 17 08.7453505426 +15 54 38.497737294   16.08   15.7   DA2.8 21 0
37 EGGR 494 WD* 17 08 07.9651561007 +02 57 37.081611590   15.65   14.5   DZ7 51 0
38 GD 205 WD* 17 11 55.6599259474 +23 01 01.526941654   14.81   15.1   DBAZ 32 0
39 GD 370 WD* 17 57 38.9257720097 +19 24 17.604048934   15.89 15.99 15.73   DA2.0 17 0
40 EGGR 126 WD* 18 29 09.8621857317 -04 29 35.487964512   14.82 14.57 14.74   DA5.4 44 0
41 HS 2046+0044 WD* 20 48 38.2981623391 +00 56 00.940357557   16.7   16.4   DA 7 0
42 LAWD 83 WD* 21 13 16.8542099131 -81 49 12.878202704 13.28 13.82 13.59 13.6   DA4.8 84 0
43 LAWD 84 WD* 21 19 36.5324188585 -55 50 14.465612769 13.94 14.50 14.27 14.5   DA5.1 66 0
44 PG 2120+055 WD* 21 22 34.8824910061 +05 42 39.614924763   16.23 16.38 16.4   DA1.4 22 0
45 WD 2127-221 WD* 21 30 00.0628832909 -21 54 06.583355201       14.10   DA1 3 0
46 HS 2132+0941 WD* 21 34 50.8136203554 +09 55 20.256984796   15.7   15.4   DAZ 17 0
47 PHL 131 WD* 21 45 27.6844515944 -16 43 08.455062666 14.49 15.63 15.9     DO5 9 0
48 LAWD 89 WD* 21 47 37.288800 -07 44 12.37632 13.752 14.77 14.83 14.96 14.889 DB0 63 0
49 BPS CS 22951-0067 WD* 21 49 38.9314668912 -43 06 14.185363763   15.8 15.7 15.7   DA.6 22 0
50 EGGR 150 WD* 21 52 25.3788480672 +02 23 19.576520492 11.942 12.732 12.743 12.839 12.938 DA2.8 165 0
51 PG 2150+021 WD* 21 53 30.1636316936 +02 23 12.378351609   16.12       DA1.2 14 0
52 LAWD 91 WD* 22 19 48.3087067191 -65 29 17.485183989 13.98 14.66 14.53     DZ5 43 0
53 PHL 5103 WD* 22 24 17.4346134332 -16 15 47.163935881   16.30 16.02 16.25 15.90 DAZ 22 0
54 EGGR 906 WD* 22 31 45.4247888462 +14 11 13.997492358   16.05 16.10 16.4   DB4 16 0
55 HS 2229+2335 WD* 22 31 45.4682773516 +23 51 23.360462985   16.02 16.01 16.37   DAZ 18 0
56 GD 237 WD* 22 33 38.7258081536 -12 15 28.463198115   16.0 16.3 18.1   DAZ 15 0
57 Feige 106 WD* 22 42 44.6216302030 -04 14 15.201524475   15.1 15.23 15.3   DA1.1 31 0
58 PG 2244+031 WD* 22 47 22.2458734553 +03 21 46.928893060   16.1   16.2   DA.8 14 0
59 PG 2303+017 WD* 23 06 13.0801485668 +01 58 52.419653763   15.76   16.2   DA1.2 13 0
60 PG 2308+051 WD* 23 11 17.9166918565 +05 19 28.717891727   15.66   16.2   DA1.4 14 0
61 EGGR 554 WD* 23 15 18.8071668249 -02 09 40.601534867   16.80 16.29     DZ 40 0
62 PG 2322+119 WD* 23 24 57.9721518830 +12 07 39.359222629   16.25   16.2   DZA4 24 0
63 V* ZZ Psc WD* 23 28 47.6364608228 +05 14 54.234982405   13.17   13.0   DA4.1 434 0
64 PG 2353+027 WD* 23 56 27.6927444815 +02 57 05.599557010   15.83 15.830 16.1   DA.8 22 0
65 PG 2354+159 WD* 23 56 34.7463193255 +16 15 40.257530063   15.78   16.15   DBZ 18 0
66 GD 1273 WD* 23 57 33.4235016215 -14 54 09.291101154   15.1 15.3     DA1.4 16 0

    Equat.    Gal    SGal    Ecl

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2020.08.09-07:36:36

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