2008ApJ...689..203R

Query : 2008ApJ...689..203R

2008ApJ...689..203R - Astrophys. J., 689, 203-212 (2008/December-2)

The acceleration of the nebular shells in planetary nebulae in the Milky Way bulge.

RICHER M.G., LOPEZ J.A., PEREYRA M., RIESGO H., GARCIA-DIAZ M.T. and BAEZ S.-H.

Abstract (from CDS):

We present a systematic study of line widths in the [O III] λ5007 and Hα lines for a sample of 86 planetary nebulae in the Milky Way bulge based on spectroscopy obtained at the Observatorio Astronómico Nacional in the Sierra San Pedro Mártir (OAN-SPM) using the Manchester Echelle Spectrograph. The planetary nebulae were selected with the intention of simulating samples of bright extragalactic planetary nebulae. We separate the planetary nebulae into two samples containing cooler and hotter central stars, defined by the absence or presence, respectively, of the He II λ6560 line in the Hα spectra. This division separates samples of younger and more evolved planetary nebulae. The sample of planetary nebulae with hotter central stars has systematically larger line widths, larger radii, lower electron densities, and lower Hβ luminosities. The distributions of these parameters in the two samples all differ at significance levels exceeding 99%. These differences are all in agreement with the expectations from hydrodynamical models, but for the first time confirmed for a homogeneous and statistically significant sample of Galactic planetary nebulae. We interpret these differences as evidence for the acceleration of the nebular shells during the early evolution of these intrinsically bright planetary nebulae. As is the case for planetary nebulae in the Magellanic Clouds, the acceleration of the nebular shells appears to be the direct result of the evolution of the central stars.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Abundances - Galaxies: Individual: Messier Number: M32 - Galaxies: Individual: NGC Number: NGC 185 - Galaxies: Individual: NGC Number: NGC 205 - ISM: Planetary Nebulae: General - Stars: Evolution

Simbad objects: 94

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Number of rows : 94
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 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
2 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
3 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
4 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
5 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
6 PN H 1-1 Em* 16 13 28.1768868744 -34 35 39.387943572   10.72 9.61     ~ 60 0
7 PN PC 12 PN 16 43 53.7839161872 -18 57 11.951244144           O 93 0
8 PN M 2-4 PN 17 01 06.2230175160 -34 49 38.610796908     14.40     ~ 81 0
9 PN M 1-19 PN 17 03 46.8491993472 -33 29 44.433527316   15.02 13.87 14.87 14.16 [WC] 75 0
10 PN M 2-8 PN 17 05 30.70 -32 32 08.1     14.50     [WC2/3] 67 0
11 PN M 4-3 PN 17 10 41.7794192424 -27 08 44.078638704     15.20     ~ 78 0
12 PN M 3-38 PN 17 21 04.4699050536 -29 02 59.700223716     16.00     ~ 97 0
13 PN H 1-11 PN 17 21 17.7263264688 -22 18 35.517598344           ~ 76 0
14 PN M 3-42 PN 17 26 59.85 -29 15 32.1     16.99 14.45   ~ 60 0
15 PN M 3-10 PN 17 27 20.19 -28 27 51.2     14.40     ~ 95 0
16 PN H 2-10 PN 17 27 32.86 -28 31 06.9     16.10     ~ 62 0
17 PN H 1-14 PN 17 28 01.7515982952 -24 25 23.316231684     15.50     ~ 52 0
18 PN M 2-13 PN 17 28 34.1923703839 -13 26 20.742891193           ~ 68 0
19 PN M 1-20 PN 17 28 57.6165015264 -19 15 54.033719256           ~ 136 0
20 PN H 1-16 PN 17 29 23.4288306495 -26 26 05.773990642   16.9 15.63 14.25 15.37 ~ 61 1
21 PN H 2-11 PN 17 29 25.9611478512 -25 49 07.205229768           ~ 66 0
22 PN H 1-17 PN 17 29 40.5936293856 -28 40 22.333706616     15.70     ~ 70 0
23 PN H 1-18 PN 17 29 42.76 -29 32 50.3           ~ 75 0
24 PN K 5-1 PN 17 29 52.3627254360 -26 11 13.611944904           ~ 32 1
25 PN K 5-3 PN 17 30 41.198 -23 45 00.40           [WC4] 30 0
26 PN H 1-20 PN 17 30 43.8092470056 -28 04 06.841201728   17.1 16.0     ~ 85 0
27 PN H 1-23 PN 17 32 46.92 -30 00 14.9     16.00     ~ 77 0
28 WRAY 16-286 PN 17 33 00.67 -36 43 51.8     15.40     ~ 48 0
29 PN M 4-5 PN 17 34 54.72 -26 35 57.3     17.50     ~ 73 0
30 PN M 4-6 PN 17 35 13.99 -29 03 10.6           ~ 62 0
31 PN G001.5+03.6 PN 17 35 22.074 -25 42 46.48           ~ 20 0
32 PN K 5-6 PN 17 35 31.28 -23 11 48.8           ~ 23 0
33 PN G003.1+04.1 PN 17 37 20.167 -24 03 27.84           ~ 17 0
34 PN H 1-27 PN 17 40 17.9448389544 -22 19 18.212179332           ~ 71 0
35 PN RPZM 30 PN 17 40 30.5 -33 29 57           ~ 13 0
36 PN G002.3+02.2 PN 17 42 30.10 -25 45 28.7       14.50 16.68 ~ 24 1
37 PN G353.5-03.3 PN? 17 42 50.65 -36 13 35.2           ~ 12 0
38 PN H 2-18 PN 17 43 28.7517226002 -21 09 51.615242509         15.912 ~ 79 0
39 Terz N 1580 PN 17 43 39.442 -25 36 42.51           ~ 30 0
40 PN M 3-14 PN 17 44 20.62 -34 06 40.6     14.90     ~ 91 0
41 PN PBOZ 11 PN 17 44 32.586 -24 13 28.12           ~ 22 0
42 PN H 1-30 PN 17 45 06.80 -38 08 49.7     15.70     ~ 43 0
43 PN M 3-15 PN 17 45 31.7096699160 -20 58 01.493896440           [WC4/6] 137 1
44 PN H 1-31 PN 17 45 31.9673698920 -34 33 54.807699996     14.50     ~ 68 0
45 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
46 PN H 1-32 PN 17 46 06.32760 -34 03 46.3356           ~ 68 0
47 PN M 2-15 PN 17 46 54.449 -16 17 24.80           ~ 65 0
48 PN PBOZ 16 PN 17 47 31.930 -24 13 07.05           ~ 18 0
49 IRAS 17445-2412 mul 17 47 34.6 -24 13 23           ~ 13 0
50 PN H 1-33 PN 17 47 49.4162559989 -34 08 05.126681277     15.30     ~ 66 1
51 PN G005.1+02.0 PN 17 49 51.282 -23 27 44.27           ~ 20 0
52 PN G356.8-03.0 PN 17 50 10.734 -33 14 17.97           ~ 20 0
53 PN M 1-29 PN 17 50 17.9658145641 -30 34 54.987881214     14.00     ~ 91 1
54 PN Hf 2-1 PN 17 51 12.149 -34 55 24.31           ~ 74 0
55 PN M 4-7 PN 17 51 44.663 -31 36 00.18           ~ 46 0
56 PN M 3-45 PN 17 52 05.96 -30 05 14.0     15.60     ~ 60 0
57 PN M 2-16 PN 17 52 34.37 -32 45 51.4     14.80     ~ 77 0
58 PN M 1-31 PN 17 52 41.4448424016 -22 21 57.159303984           [WC] 116 0
59 PN M 3-16 PN 17 52 46.0471623240 -30 49 35.021065800     17.007   16.122 O(H)4-6III-V 81 0
60 PN M 2-20 PN 17 54 25.32 -29 36 08.2     16.1     [WC5/6] 80 0
61 PN Cn 2-1 PN 17 54 33.010 -34 22 21.15     12.70 14.47 13.70 ~ 136 0
62 PN H 1-40 PN 17 55 36.0545698680 -30 33 32.359297176     15.50     ~ 107 0
63 PN Bl 3-13 PN 17 56 02.7875230032 -29 11 16.552199904     16.00     ~ 67 0
64 PN H 1-41 PN 17 57 19.1084978568 -34 09 48.784614372           [WC] 93 0
65 PN H 1-42 PN 17 57 25.1720091886 -33 35 43.132190632     12.80     ~ 81 0
66 PN M 2-21 PN 17 58 09.58 -29 44 20.1           ~ 87 0
67 PN H 1-45 Mi* 17 58 21.8662836432 -28 14 52.195092648     15.602   12.494 ~ 75 0
68 PN M 2-22 PN 17 58 32.58 -33 28 36.8     15.50     ~ 71 0
69 PN M 3-20 PN 17 59 19.35 -28 13 48.2     14.80     Of 85 0
70 PN M 2-23 PN 18 01 42.6413050824 -28 25 44.117293404     13.00     ~ 124 0
71 PN M 3-21 PN 18 02 32.33 -36 39 11.3     12.20     ~ 109 1
72 PN M 2-26 PN 18 03 11.92 -26 58 31.2     16.00     ~ 65 1
73 PN M 1-35 PN 18 03 39.30 -26 43 33.9     14.50     ~ 99 0
74 PN M 2-27 PN 18 03 52.5718384152 -31 17 47.161796424     14.40     [WC4]: 110 0
75 PN H 1-50 PN 18 03 53.5082954976 -32 41 42.015068628   10 12.80     ~ 87 0
76 PN M 2-29 PN 18 06 40.9055211600 -26 54 56.375768340   15.24 14.29 15.15 15.905 ~ 139 0
77 PN H 1-54 PN 18 07 07.2793260936 -29 13 05.972785284     13.90     ~ 108 0
78 PN H 1-56 PN 18 07 53.8842030888 -29 44 34.338810768     15.00     O? 85 0
79 PN M 1-42 PN 18 11 04.99 -28 58 59.1   13.1 14.00     ~ 221 0
80 PN H 1-59 PN 18 11 29.263 -27 46 15.69   14.5       ~ 71 0
81 PN H 1-60 PN 18 12 25.22 -27 29 12.8           [WC] 76 0
82 PN M 2-30 PN 18 12 34.40 -27 58 10.5   13.5 14.00     ~ 110 0
83 PN M 2-31 PN 18 13 16.0521431976 -25 30 05.320920636   13.3 13.60     [WC4/6] 110 0
84 PN M 2-33 PN 18 15 06.5634327720 -30 15 33.265211580       14.61 14.03 O5f(H) 111 0
85 PN M 3-26 PN 18 16 11.44 -27 14 58.3     15.00     ~ 70 0
86 PN M 2-39 PN 18 22 01.1620945464 -24 10 39.916889760     15.00     wels 82 0
87 PN H 1-67 PN 18 25 04.976 -22 34 52.64           [WC2/3] 69 0
88 PN Cn 1-5 PN 18 29 11.6500996872 -31 29 59.135208396   15.5 15.2 13.34   [WC5/6] 163 0
89 PN M 1-48 PN 18 29 30.0553819752 -19 05 43.953710820           ~ 57 1
90 PN M 3-54 PN 18 33 03.745 -13 44 19.95           ~ 41 0
91 PN M 3-32 PN 18 44 43.03 -25 21 34.8           ~ 79 0
92 PN M 3-33 PN 18 48 12.1403633760 -25 28 52.423742352     13.20     ~ 87 0
93 PN Hb 8 PN 19 05 35.9385167760 -33 11 38.011972668   14.47 13.22 15.39   ~ 76 0
94 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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