2006A&A...451..925G


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.15CEST07:30:02

2006A&A...451..925G - Astronomy and Astrophysics, volume 451, 925-935 (2006/6-1)

Planetary nebulae with emission-line central stars.

GESICKI K., ZIJLSTRA A.A., ACKER A., GORNY S.K., GOZDZIEWSKI K. and WALSH J.R.

Abstract (from CDS):

The kinematic structure of a sample of planetary nebulae, consisting of 23 [WR] central stars, 21 weak emission line stars (wels), and 57 non-emission line central stars, is studied. The [WR] stars are shown to be surrounded by turbulent nebulae, a characteristic shared by some wels but almost completely absent from the non-emission line stars. The fraction of objects showing turbulence for non-emission-line stars, wels, and [WR] stars is 7%, 24%, and 91%, respectively. The [WR] stars show a distinct IRAS 12-micron excess, indicative of small dust grains, which is not found for wels. The [WR]-star nebulae are on average more centrally condensed than those of other stars. On the age-temperature diagram, the wels are located on tracks of both high and low stellar mass, while [WR] stars trace a narrow range of intermediate masses. Emission-line stars are not found on the cooling track. One group of wels may form a sequence wels-[WO] stars with increasing temperature. For the other groups, both the wels and the [WR] stars appear to represent several, independent evolutionary tracks. We find a discontinuity in the [WR] stellar temperature distribution and suggest different evolutionary sequences above and below the temperature gap. One group of cool [WR] stars has no counterpart among any other group of PNe and may represent binary evolution. A prime factor distinguishing wels and [WR] stars appears to be stellar luminosity. We find no evidence for an increase in the nebular expansion velocity with time.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - stars: evolution

Simbad objects: 41

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Number of rows : 41

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 NGC 40 PN 00 13 01.0170260109 +72 31 19.032886305   11.63 11.46     [WC8] 588 2
2 PN M 4-18 PN 04 25 50.8357219366 +60 07 12.778708522   14.22 13.96     [WC11] 170 0
3 PN M 1-6 PN 06 35 45.1225761631 -00 05 37.414428023     15.84     O6-9I 108 1
4 PN St 3-1 PN 07 06 50.9104259770 -03 05 09.178288842   16.5       ~ 26 0
5 PN M 1-13 PN 07 21 15.037 -18 08 34.65   11.0       ~ 92 0
6 PN SaSt 2-3 PN 07 48 03.6731834801 -14 07 40.425767471           B 34 0
7 EM* AS 200 PN 08 28 27.9573028896 -39 23 40.040475275   12 14.00     [WC] 83 0
8 PN M 3-6 PN 08 40 40.2262121476 -32 22 33.594159962     12.79     [WC] 103 0
9 EM* AS 204 PN 08 53 30.91 -40 03 42.3     14.00     ~ 84 1
10 PN PB 8 PN 11 33 17.8154413787 -57 06 14.926075766     14.00     [WC5/6] 108 0
11 WRAY 16-117 PN 12 30 30.479 -64 52 05.72   14.55 15.00     [WC4] 110 0
12 WRAY 16-123 PN 13 05 48.2269982293 -57 39 24.466212342     14.00     ~ 31 0
13 WRAY 16-139 PN 13 52 30.6807824735 -66 23 26.576683632 12.57 13.26 13.18 13.52   [WC9] 154 0
14 CPD-51 6744 PN 14 18 08.8856504204 -52 10 39.518062758   12.39 11.98     [WC] 146 0
15 WRAY 15-1269 PN 14 59 53.4814028450 -54 18 07.524725528 12.12 12.17 11.64 11.63   [WC11] 228 0
16 WRAY 16-181 PN 15 25 07.8351286491 -51 19 42.163710674     14.20     wels? 53 0
17 WRAY 16-182 PN 15 25 32.6550631928 -52 50 37.942546489     15.20     ~ 50 0
18 WRAY 16-198 PN 15 59 57.63 -55 55 33.0   15.88 15.15     [WC9] 125 0
19 PN H 1-2 PN 16 48 54.11 -35 47 09.1   11.5 13.60     [WC11] 62 0
20 PN M 1-19 PN 17 03 46.8503342266 -33 29 44.418870745   15.02 13.87 14.87 14.16 [WC] 64 0
21 PN M 2-6 PN 17 04 18.33 -30 53 28.9     14.60     ~ 73 1
22 PN M 2-8 PN 17 05 30.70 -32 32 08.1     14.50     [WC2/3] 59 0
23 CPD-56 8032 PN 17 09 00.86008 -56 54 48.0957 11.24 11.48 11.04     [WC10] 248 0
24 PN H 1-9 PN 17 21 31.90 -30 20 48.9   10 14.60     ~ 72 0
25 PN M 3-7 PN 17 24 34.45 -29 24 19.7     14.60     [WC] 83 0
26 PN Th 3-13 PN 17 25 19.3690253056 -30 40 42.080269767           [WC5/6] 49 0
27 PN H 1-24 PN 17 33 37.5818501250 -21 46 24.764173234           ~ 67 0
28 PN M 1-25 PN 17 38 30.3090210711 -22 08 39.031594171   17.9       [WC6] 137 0
29 PN SaSt 2-15 PN 17 38 57.3716181503 -18 17 35.779247942   13.93 13.66 13.82   ~ 69 0
30 PN M 2-14 PN 17 41 57.2575130821 -24 11 16.231392404     14.70 15.71 14.50 ~ 60 0
31 PN M 1-27 WR? 17 46 45.4756208895 -33 08 35.133141922     13.90     [WC11]? 95 0
32 PN M 2-16 PN 17 52 34.37 -32 45 51.4     14.80     ~ 70 0
33 PN M 1-31 PN 17 52 41.44 -22 21 57.0           [WC] 98 0
34 PN M 3-16 PN 17 52 46.05 -30 49 35.5     17.007   16.122 O(H)4-6III-V 67 0
35 PN M 2-18 PN 17 53 37.85 -32 58 47.8     14.90     ~ 59 0
36 PN M 1-37 PN 18 05 25.81 -28 22 04.3     14.70     [WC11]? 118 0
37 PN M 3-23 PN 18 07 06.16 -30 34 17.8     14.50     ~ 56 0
38 PN M 1-42 PN 18 11 04.99 -28 58 59.1   13.1 14.00     ~ 194 0
39 PN M 2-43 PN 18 26 40.0469091191 -02 42 57.485078141     15.7     [WC7/8] 113 0
40 HD 184738 PN 19 34 45.2337512278 +30 30 58.951476338   10.41 10.44     [WC9] 920 0
41 Hen 3-1863 PN 20 19 28.6992264184 -41 31 27.493130020   10.51 10.65     ~ 26 0

    Equat.    Gal    SGal    Ecl

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2020.07.15-07:30:02

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