2014AJ....147..142C


Query : 2014AJ....147..142C

2014AJ....147..142C - Astron. J., 147, 142 (2014/June-0)

Dusty disks around central stars of planetary nebulae.

CLAYTON G.C., DE MARCO O., NORDHAUS J., GREEN J., RAUCH T., WERNER K. and CHU Y.-H.

Abstract (from CDS):

Only a few percent of cool, old white dwarfs (WDs) have infrared excesses interpreted as originating in small hot disks due to the infall and destruction of single asteroids that come within the star's Roche limit. Infrared excesses at 24 µm were also found to derive from the immediate vicinity of younger, hot WDs, most of which are still central stars of planetary nebulae (CSPNe). The incidence of CSPNe with this excess is 18%. The Helix CSPN, with a 24 µm excess, has been suggested to have a disk formed from collisions of Kuiper belt-like objects (KBOs). In this paper, we have analyzed an additional sample of CSPNe to look for similar infrared excesses. These CSPNe are all members of the PG 1159 class and were chosen because their immediate progenitors are known to often have dusty environments consistent with large dusty disks. We find that, overall, PG 1159 stars do not present such disks more often than other CSPNe, although the statistics (five objects) are poor. We then consider the entire sample of CSPNe with infrared excesses and compare it to the infrared properties of old WDs, as well as cooler post-asymptotic giant branch (AGB) stars. We conclude with the suggestion that the infrared properties of CSPNe more plausibly derive from AGB-formed disks rather than disks formed via the collision of KBOs, although the latter scenario cannot be ruled out. Finally, there seems to be an association between CSPNe with a 24 µm excess and confirmed or possible binarity of the central star.

Abstract Copyright:

Journal keyword(s): circumstellar matter - planetary nebulae: general - stars: evolution - white dwarfs

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 - 2023
#notes
1 NGC 246 PN 00 47 03.3420341616 -11 52 18.971126076 10.15 11.52 11.76 12.18   PG1159 467 0
2 PG 0057+155 HS* 00 59 56.6673699744 +15 44 13.740284580   12.02 12.32     sdB0.2VIIIpHe8 119 1
3 PN HDW 1 PN 01 07 07.6233410040 +73 33 23.447679408   16.308 16.439 16.452 16.482 DA 45 0
4 EGGR 901 WD* 01 12 23.0598244080 +11 23 36.100360788   15.15 15.40 15.69   DOZ.7 41 0
5 SH 2-188 PN 01 30 33.1778575512 +58 24 50.325485868   17.424 17.447 17.398 17.376 DAO.6 100 1
6 M 76 PN 01 42 19.6557728208 +51 34 31.534970052     17.48   17.69 DOZ 367 2
7 Wolf 88 WD* 01 48 56.7965896608 +19 02 27.484961100   15.5   15.4   DAZB 50 0
8 GD 56 WD* 04 11 02.1686667960 -03 58 22.586865708   15.64 15.50 15.1   DA3.3 72 0
9 SH 2-216 PN 04 43 21.2638228056 +46 42 05.835192876   12.50 12.87 13.04   DAO.6 157 2
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16395 1
11 NGC 2346 PN 07 09 22.5215800440 -00 48 23.610997332   11.76 11.58     A5V 565 0
12 WRAY 17-1 PN 07 14 49.4240697984 -46 57 39.199063500   13.8 13.00     PG1159 79 0
13 PN A66 21 PN 07 29 02.7096654192 +13 14 48.587555184   15.67 15.99     DOZ 186 0
14 NGC 2438 PN 07 41 50.5194253896 -14 44 07.470144744           ~ 281 3
15 PN ARO 121 PN 07 57 51.6169237320 +53 25 16.950484848   16.775 17.128 17.288 17.501 DQ 158 1
16 IRAS 08005-2356 pA* 08 02 40.7049577608 -24 04 42.588796404   12.85       F5Iae 90 0
17 EGB 5 HS* 08 11 12.7657907304 +10 57 17.099384400     14.2     sdB 50 1
18 EGB 6 PN 09 52 58.9865875152 +13 44 34.622903256   15.692 15.999 16.137 16.300 DAO.5 92 0
19 PN Lo 4 PN 10 05 45.7880109408 -44 21 33.523482384           sdO 132 1
20 GD 133 WD* 11 19 12.3988618680 +02 20 33.045927216   14.76 14.57 14.8   DA4.0 82 0
21 PN K 1-22 PN 11 26 43.7671247699 -34 22 11.178770560     17.4     ~ 68 0
22 V* GW Vir WD* 12 01 45.9731868264 -03 45 40.628670300   14.87 15.04     DOQZ1 477 0
23 NGC 5315 PN 13 53 56.9726795664 -66 30 50.859483264   14.58 14.40     [WO4] 300 0
24 PG 1520+525 PN 15 21 46.5635130432 +52 22 03.867341340   15.56 16.6     PG1159 107 1
25 IRAS 16279-4757 pA* 16 31 38.7381067320 -48 04 05.637444456           M3II 39 0
26 CPD-56 8032 PN 17 09 00.9291677740 -56 54 47.868280757 11.24 11.48 11.04 11.067   [WC10] 258 0
27 GD 362 WD* 17 31 34.3168718112 +37 05 20.711767812   16.3   16.4   DAZB 164 0
28 PN A66 43 PN 17 53 32.2767758208 +10 37 24.210757560   14.53 14.71     O7fk 132 0
29 NGC 6765 PN 19 11 06.5583234216 +30 32 43.674073296           PG1159 70 1
30 NGC 6804 PN 19 31 35.1453655872 +09 13 31.298620188   13.4 13.4     ~ 212 1
31 M 27 PN 19 59 36.3631850088 +22 43 16.312059552   13.749 14.089 14.247 14.405 DAO.6 581 0
32 NGC 6852 PN 20 00 39.2100674640 +01 43 40.921293540   17.70       PG1159 64 1
33 MWP 1 PN 21 17 08.2817782392 +34 12 27.415995372     12.33     PG1159 181 0
34 LAWD 84 WD* 21 19 36.5325585235 -55 50 14.465412588 13.94 14.50 14.27 14.5   DA5.1 74 0
35 NGC 7094 PN 21 36 52.9687364088 +12 47 19.099274136     13.35     ~ 184 0
36 NGC 7139 PN 21 46 08.586 +63 47 29.45           ~ 110 0
37 WD 2218+706 WD* 22 19 33.6826662264 +70 56 03.182775504   15.268 15.495 15.568 15.631 DA.7 73 1
38 NGC 7293 PN 22 29 38.5454047152 -20 50 13.747242408 11.894 13.158 13.524 13.689 13.898 DAO.5 929 0
39 * alf Lac PM* 22 31 17.5013090 +50 16 56.968200 3.78 3.78 3.77 3.77 3.80 A1V 250 0
40 V* ZZ Psc WD* 23 28 47.6365087803 +05 14 54.235051503   13.17   13.0   DA4.1 467 0
41 PN Jn 1 PN 23 35 53.3214838680 +30 28 06.336745212   15.52 15.62     DOZ 103 0

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2022.11.30-18:35:13

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