2006ApJ...652.1554V

Query : 2006ApJ...652.1554V

2006ApJ...652.1554V - Astrophys. J., 652, 1554-1562 (2006/December-1)

Iron in hot DA white dwarfs.

VENNES S., CHAYER P., DUPUIS J. and LANZ T.

Abstract (from CDS):

We present a study of the iron abundance pattern in hot, hydrogen-rich (DA) white dwarfs. The study is based on new and archival far-ultraviolet spectroscopy of a sample of white dwarfs in the temperature range 30,000 K≲Teff≲64,000 K. The spectra obtained with the Far Ultraviolet Spectroscopic Explorer, along with spectra obtained with the Hubble Space Telescope Imaging Spectrograph and the International Ultraviolet Explorer, sample Fe III-Fe VI absorption lines, enabling a detailed iron abundance analysis over a wider range of effective temperatures than previously afforded. The measurements reveal abundance variations in excess of 2 orders of magnitude between the highest and the lowest temperatures probed, but also show considerable variations (over 1 order of magnitude) between objects with similar temperatures and surface gravities. Such variations in cooler objects may be imputed to accretion from unseen companions or so-called circumstellar debris, although the effect of residual mass loss and selective radiation pressure in the hottest objects in the sample remain dominant.

Abstract Copyright: ∼

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

VizieR on-line data: <Available at CDS (J/ApJ/652/1554): table4.dat>

Simbad objects: 116

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Number of rows : 116
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 1RXS J000359.1+433600 WD* 00 03 58.7865079296 +43 36 01.892278944   16.3 16.8 16.9   DA1.1 35 0
2 GD 2 WD* 00 07 32.2596160176 +33 17 27.605949792 12.321 13.482 13.791 13.940 14.119 DA1.0 103 0
3 MCT 0027-6341 WD* 00 29 56.7251246112 -63 24 58.003740036   15.010 15.307 15.536   DA.8 51 0
4 GD 659 WD* 00 53 17.4282107064 -32 59 56.523062760   13.14 13.36     DA1.4 140 0
5 GD 683 WD* 01 08 20.7692886528 -35 34 41.697626232   14.53 14.72 15.8   DA1.6 58 0
6 GD 984 ** 01 34 24.0732015168 -16 07 08.095946556   13.6 13.98 14.3   DA1+dM 72 0
7 PG 0136+251 WD* 01 38 52.9776840264 +25 23 22.640581464   15.83       DA1.2 91 0
8 1RXS J015109.6+673947 X 01 51 09.6 +67 39 47           ~ 2 0
9 HD 15638 SB* 02 28 19.0240435392 -61 18 19.341082080   9.28 8.88     F6V+D 56 0
10 V* FS Cet CV* 02 35 07.5939240480 +03 43 56.816311296 11.027 12.209 12.412 12.325 11.968 DA1+dM 379 0
11 PHL 1400 WD* 02 37 26.0415534144 -12 21 34.644386772   14.64 15.3 15.64 15.20 DA1.6 42 0
12 1RXS J023947.9+500349 WD* 02 39 48.4000229712 +50 03 48.035691828   15.55 15.71 15.65   DA1.5 30 0
13 Feige 31 WD* 03 04 37.3224484032 +02 56 58.037363484   14.68   15.2   DA1.4 68 0
14 V* CL Oct WD* 03 17 15.8468594712 -85 32 25.558244556   13.78 13.66 15.19   DAP 180 1
15 LB 9802 WD* 03 17 19.1282833488 -85 32 31.288377552   13.78 13.66 14.43   DA 141 1
16 LB 1663 WD* 03 22 14.8200931320 -53 45 16.473401928   14.88 14.9 15.51 15.21 DA1.5 78 0
17 MCT 0335-4205 WD* 03 37 15.1696297608 -41 55 23.795637600           DA1.0 16 0
18 GD 50 WD* 03 48 50.1859724280 -00 58 32.290187664 12.596 13.787 14.063 14.210 14.388 DA1.2 272 1
19 1E 0354.6-3650 ** 03 56 30.6212042736 -36 41 19.676909976   13.061 12.460 12.49 11.757 G2V+DA1 39 0
20 FBS 0421+740 WD* 04 27 33.5227648032 +74 07 31.546270452   15.17 15.46 15.80   DA.9 33 0
21 RX J0443.1-0346 WD* 04 43 07.1639093832 -03 46 49.791898632   16.7 16.0 16.8   DA.8 41 0
22 MCT 0455-2812 WD* 04 57 13.3208333976 -28 07 52.750783812 12.44 13.65 13.92 14.23   DA.8 121 0
23 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1153 0
24 RX J0512.0-0042 WD* 05 12 06.3899357400 -00 42 05.956344036   13.5 13.8 13.9   DA1.6 46 0
25 RX J0512.4-4145 WD* 05 12 23.0408828208 -41 45 26.035111800   16.7 16.5 17.1   DA1 28 0
26 * 14 Aur B XB* 05 15 23.6000866920 +32 41 05.232329700   8.25 7.88     F2V+DA1.3 85 1
27 RX J0521.3-1029 WD* 05 21 18.9703270488 -10 29 17.546990352   15.6 15.6 15.9   DA1.5 47 0
28 GD 257 WD* 05 50 37.5195849864 +00 05 52.623285612   14.80 15.10 15.1   DA1.1 72 0
29 1RXS J055047.4-240853 WD* 05 50 46.7269400976 -24 08 50.550517284   16.6 16.2 16.8   DA.9 27 0
30 GD 71 WD* 05 52 27.6198591816 +15 53 13.228887444 11.675 12.783 13.032 13.169 13.337 DA1.5 407 0
31 2RE J055812-373503 WD* 05 58 14.6317702176 -37 34 26.020884072   14.11 14.38 14.74   DA.85? 33 0
32 1RXS J060502.5-481944 X 06 05 02.5 -48 19 44           ~ 3 0
33 1RXS J061907.3-082825 WD* 06 19 06.9249870384 -08 28 07.150138212   15.57 15.83 16.14   DA.66 9 0
34 RX J0623.2-3741 WD* 06 23 12.6177525552 -37 41 28.043049264   11.88 12.42 12.6   DA.8 114 0
35 RX J0632.9-0506 WD* 06 32 57.7842858456 -05 05 49.360648668   15.7 15.537 16.0   DA1.1 33 0
36 KPD 0631+1043 WD* 06 33 50.2953950856 +10 41 18.057493176 12.60 13.65 13.82 14.00   DA1.8 47 0
37 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1610 0
38 * alf CMa B WD* 06 45 09.3041925037 -16 43 00.724740067   8.41 8.44     DA1.9 563 1
39 RX J0648.9-2523 WD* 06 48 56.0858014608 -25 23 46.958537868   13.9 13.74 14.4   DA1.8 39 0
40 GD 80 WD* 06 54 13.8072319632 -02 09 20.598940836   14.61 14.79 15.05   DA1.5 60 0
41 RX J0715.3-7025 WD* 07 15 16.5785943888 -70 25 05.616247620   13.97 14.178 14.12   DA1 58 0
42 V* IN CMa CV* 07 20 47.9109655416 -31 47 02.732961552           DAO+dM 93 0
43 RX J0723.2-2748 WD* 07 23 20.0979881904 -27 47 21.574807368   13.9   14.2   DA1.4 39 0
44 * y Pup XB* 07 29 05.6951953008 -38 48 43.442359164   5.243 5.395     B3V 91 0
45 1RXS J080933.1-725909 WD* 08 09 32.0110172496 -72 59 16.496720592   16.0 15.1 15.2   DA1.6 35 0
46 RX J0823.6-2525 WD* 08 23 34.6655665968 -25 25 14.953058544   16.7   15.9   DA1.2 37 1
47 PG 0824+289 ** 08 27 05.0512752687 +28 44 02.778910836   14.391 14.204 14.454   DA+dC 71 0
48 RX J0831.7-5341 WD* 08 31 51.9100703544 -53 40 32.516592636   14.6 14.5 14.6   DA1.6 43 0
49 RX J0841.0+0320 WD* 08 41 03.4311724896 +03 20 57.719634324     14.48     DA1.3 32 0
50 HD 74389B WD* 08 45 48.9561653856 +48 52 45.678931932   15.5       DA1.3 30 1
51 * tet Hya SB* 09 14 21.8600711562 +02 18 51.551915906   3.82   3.9   B9.5V+DA1.6 224 0
52 1RXS J091657.6-194613 WD* 09 16 57.7063571088 -19 46 25.052161512       16.9   DA.8 31 0
53 PG 0937+506 WD* 09 40 22.6601336280 +50 21 05.882761872   16.06       DA1.4 53 0
54 Ton 21 WD* 09 42 50.6352905952 +26 00 59.844255084   14.18 14.53     DA.7 43 0
55 PG 0948+534 PN 09 51 25.9386749256 +53 09 30.722690664   14.955 15.315 15.200   DA.4 52 0
56 RX J0957.8+8529 WD* 09 57 54.2970820320 +85 29 40.876255140   15.46 15.72 16.11   DA1.0 41 0
57 HE 1013-0505 WD* 10 16 28.6043334312 -05 20 35.222859276     14.1     DAO.9 108 0
58 HD 90052 SB* 10 24 05.9022659016 +26 21 03.700592856   9.57 9.26     F0V+DA1.4 34 0
59 RX J1024.7-3021 WD* 10 24 44.1809970768 -30 21 00.427633956   16.7 15.8 16.3   DA1.4 36 0
60 PG 1026+454 WD* 10 29 45.2951675832 +45 07 04.926948312   16.1 16.13 16.4   DA1.4 58 0
61 SBSS 1029+537 WD* 10 32 09.9865348944 +53 29 35.373072660   14.095 14.453 14.831   DA1.1 90 0
62 1RXS J103347.4-114146 X 10 33 47.4 -11 41 46           ~ 3 0
63 GD 123 ** 10 36 25.2556059000 +46 08 30.695862156   13.70 13.15     DA+M3 59 1
64 SBSS 1040+493 WD* 10 43 11.4236321376 +49 02 23.528957028           DA1.0 56 0
65 PG 1041+580 WD* 10 44 45.8784815184 +57 44 35.998561716   14.43 14.62 14.82   DA1.6 63 0
66 1RXS J105820.6-384416 WD* 10 58 20.0990765856 -38 44 25.124543484   14.1 14.1 14.5   DA1.7 44 0
67 LB 1919 WD* 10 59 16.4293648440 +51 24 43.125083064   15.5 16.8     DA.7 62 0
68 PG 1057+719 WD* 11 00 34.2431647104 +71 38 02.920054596   14.95 14.68 15.23   DA1.2 83 0
69 * bet Crt SB* 11 11 39.4787167248 -22 49 33.052973988   4.475 4.449     A1V 162 0
70 Ton 61 WD* 11 12 38.9116213800 +24 09 01.205285076   15.50 15.79 16.01   DA1.3 48 0
71 PG 1123+189 CV* 11 26 19.095480 +18 39 16.56900   13.94 14.10 14.31   A0III 68 0
72 PG 1145+188 WD* 11 48 03.1636477464 +18 30 46.467090792   13.69 14.38 14.6   DA1.8 55 1
73 1RXS J120055.5-363013 WD* 12 00 55.3515130200 -36 30 04.396184100   14.57 14.37 15.31   DA 10 0
74 PG 1234+482 WD* 12 36 45.1436139768 +47 55 22.218366900     14.38     DA.9 98 2
75 GD 153 WD* 12 57 02.3224909560 +22 01 52.634778240 11.883 13.060 13.349 13.488 13.669 DA1.2 380 0
76 HZ 43A WD* 13 16 21.8532409720 +29 05 55.411186877   12.52 12.66     DAwk 477 0
77 PG 1342+444 WD* 13 44 26.8497569064 +44 08 33.299274192   16.15       DA.7 56 0
78 HS 1440+7518 WD* 14 40 05.1341163672 +75 05 33.787957776   15.1 15.3 15.2   DA1 59 0
79 BD+64 1026 * 14 46 05.7969204840 +63 29 21.243183864   10.17 9.66     F8 7 0
80 FBS 1500+752 WD* 15 00 19.1694351192 +74 58 46.461663660           DA: 13 0
81 [VV2006] J152946.8+483531 QSO 15 29 46.8646213944 +48 35 31.150039416   20.85 20.55     ~ 21 0
82 1RXS J153545.2-772439 WD* 15 35 45.3102171624 -77 24 44.132506092   16.6   17.3 17.09 DA1 27 0
83 CD-38 10980 WD* 16 23 33.8380498896 -39 13 46.161043572 9.916 10.885 11.029 10.936 10.841 DA2 526 0
84 RX J1629.0+7804 WD* 16 29 10.278576 +78 04 39.91620   12.74 12.95 13.03   DA1.2 86 0
85 PG 1636+351 WD* 16 38 26.3184985560 +35 00 11.890614960 13.585 14.65 14.902 15.013 15.157 DA1.4 89 0
86 PG 1657+344 WD* 16 58 51.1124739360 +34 18 53.321336856   16.12       DA.9 70 0
87 PG 1658+441 WD* 16 59 48.4241073768 +44 01 04.038522204   14.3 14.6     DAP1.6 156 0
88 RX J1711.4+6645 WD* 17 11 27.1388339952 +66 45 30.538787868     17.1     DA.9 32 0
89 LB 335 WD* 17 26 43.3815449232 +58 37 32.146498308   15.36 13.44     DA.9 65 0
90 RX J1727.6-3559 WD* 17 27 37.8466377264 -36 00 14.497536312   15.35 15.42 15.83   DA1.5 31 0
91 1RXS J174614.9-703902 WD* 17 46 13.8238125504 -70 38 57.824268360   16.6 16.0 16.1   DA1.0 36 0
92 KUV 18004+6836 WD* 18 00 09.6182434536 +68 35 52.226787048   14.68 14.69 15.00   DA1.1 61 0
93 RX J1820.5+5805 WD* 18 20 29.7868783008 +58 04 40.963525860   13.8 14.23     DA1.0 41 0
94 KUV 18453+6819 WD* 18 45 09.3271391712 +68 22 34.865250132   15.24 15.00 15.65   DA1.4 43 0
95 Lan 18 WD* 18 47 39.0288030792 +01 57 35.449794216 11.68 12.73 12.94 13.1 12.3 DA1.7 81 0
96 RX J1847.9-2219 WD* 18 47 56.5242646248 -22 19 37.774445232   14.5 14.0 14.4   DA1.5 49 0
97 LB 342 WD* 19 18 23.8680922200 +59 59 54.640997340   14.60 14.91 15.09   DA 35 0
98 CD-56 7708 ** 19 25 58.5361419576 -56 33 36.497077056   11.37 10.571   9.780 G5V+DA1.0 37 0
99 1RXS J194343.1+500440 WD* 19 43 43.6811875272 +50 04 37.921728648   14.320 14.717 15.039   DA1.4 54 0
100 1RXS J200425.2-560301 WD* 20 04 18.2561571528 -56 02 47.934832056       15.716   DA 40 0
101 EC 20048-6034 WD* 20 09 05.6036730480 -60 25 42.533556924 11.94 13.11 13.39 13.69   DA1.2 74 0
102 RX J2013.1+4002 ** 20 13 09.3685663800 +40 02 24.241439184     14.6     DAO+M2/3e 94 1
103 MCT 2020-4234 WD* 20 23 59.5069330104 -42 24 25.846993944 13.73 14.70 14.89     DA1.6 59 0
104 GD 394 WD* 21 12 44.0371201584 +50 06 17.887239540 11.70 12.85 13.09     DA1.3 188 1
105 KUV 21168+7338 WD* 21 16 52.8342570792 +73 50 41.161338240     14.87     DA.9 38 0
106 RX J2124.9+2826 WD* 21 24 58.1647635864 +28 26 02.626279260   13.62 13.84 14.30   DA 19 0
107 V* IK Peg dS* 21 26 26.6611049976 +19 22 32.310190344   6.294 6.064     kA6hA9mF0+DA 204 0
108 BPS CS 29506-0051 WD* 21 27 43.1222833584 -22 11 48.681876912 13.53 14.72 14.94     DA1.0 48 0
109 BPS CS 29493-0071 WD* 21 54 53.4012426504 -30 29 18.667362696   14.8 15.05 14.9   DA1.7 45 0
110 EC 21529-5452 WD* 21 56 21.2576687736 -54 38 23.017341192 13.11 14.29 14.58     DA1 59 0
111 MCT 2153-4156 WD* 21 56 35.3375767824 -41 42 17.711510868   15.593 15.815 15.3   DA 36 0
112 RX J2210.4-3006 WD* 22 10 29.0979354168 -30 05 43.100369232           DA1.7 32 0
113 RX J2214.1-4918 WD* 22 14 11.9175658032 -49 19 27.216388524   11.28 11.57 11.7   DA.7 123 0
114 Lan 23 WD* 22 49 52.3672810920 +58 34 32.038383144 12.80 13.98 14.19 14.78   DA.9 47 0
115 GD 246 WD* 23 12 21.6158334024 +10 47 04.257295476 11.578 12.772 13.090 13.238 13.418 DA.9 224 0
116 EC 23216-5458 WD* 23 24 30.8622650808 -54 41 35.509543332   14.91 15.13 15.72   DA1.1 58 0

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