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Query : 2007MNRAS.378..231P |
2007MNRAS.378..231P - Mon. Not. R. Astron. Soc., 378, 231-238 (2007/June-2)
Density gradients in Galactic planetary nebulae.
PHILLIPS J.P.
Abstract (from CDS):
It will be suggested that both of these analyses are unreliable, and should be treated with a considerable degree of caution. A new analysis within the log(F(5GHz)/F(1.4GHz))-log(TB(5GHz)) plane will be used to show that at least 10-20 per cent of PNe are associated with strong density gradients. We shall also show that the ratio F(5GHz)/F(1.4GHz) varies with nebular radius; an evolution that can be interpreted in terms of varying shell masses, and declining electron densities.
Abstract Copyright: 2007 The Author. Journal compilation © 2007 RAS
Journal keyword(s): ISM: jets and outflows - planetary nebulae: general - radio continuum: general
Simbad objects: 24
Number of rows : 24 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | IC 2165 | PN | 06 21 42.7847803566 | -12 59 14.040997076 | 12.146 | 10.782 | 12.305 | ~ | 375 | 0 | ||
2 | PN VV 28 | PN | 06 25 57.2710426104 | +17 47 27.136548168 | 12.5 | [WC] | 290 | 0 | ||||
3 | NGC 2440 | PN | 07 41 55.4 | -18 12 32 | 11.469 | 10.104 | ~ | 652 | 2 | |||
4 | NGC 6026 | PN | 16 01 21.1234809960 | -34 32 35.786302980 | 13.2 | 12.50 | O7 | 110 | 0 | |||
5 | NGC 6369 | PN | 17 29 20.4566510904 | -23 45 34.771819248 | 16.6 | 12.00 | [WC4] | 317 | 0 | |||
6 | PN H 1-24 | PN | 17 33 37.5822007992 | -21 46 24.764813832 | ~ | 72 | 0 | |||||
7 | ESO 455-139 | PN | 17 39 02.9171861568 | -28 56 35.634293412 | 17.2 | ~ | 70 | 0 | ||||
8 | PN K 1-4 | PN | 17 40 27.52 | -27 01 02.1 | 15.00 | ~ | 48 | 0 | ||||
9 | PN Th 4-7 | PN | 17 52 22.569 | -21 51 13.43 | 15.46 | 14.01 | ~ | 39 | 0 | |||
10 | PN M 2-19 | PN | 17 53 45.6485317560 | -29 43 46.975373868 | 16.976 | 15.973 | O(H)6-8III-V | 90 | 0 | |||
11 | PN Bl M | PN | 17 53 47.118 | -28 27 17.11 | 16.6 | ~ | 43 | 0 | ||||
12 | PN H 1-40 | PN | 17 55 36.0545698680 | -30 33 32.359297176 | 15.50 | ~ | 97 | 0 | ||||
13 | PN H 1-47 | PN | 18 00 37.6202014872 | -29 21 50.638625244 | 15.60 | [WC11]? | 77 | 0 | ||||
14 | PN M 2-27 | PN | 18 03 52.5718384152 | -31 17 47.161796424 | 14.40 | [WC4]: | 103 | 0 | ||||
15 | NGC 6537 | PN | 18 05 13.104 | -19 50 34.88 | 13.58 | ~ | 425 | 1 | ||||
16 | PN M 1-38 | PN | 18 06 05.74 | -28 40 30.0 | 13.90 | ~ | 99 | 0 | ||||
17 | PN H 1-54 | PN | 18 07 07.2793260936 | -29 13 05.972785284 | 13.90 | ~ | 103 | 0 | ||||
18 | NGC 6629 | PN | 18 25 42.4541775576 | -23 12 10.551587436 | 11.90 | 9.9 | [WC5/6] | 265 | 0 | |||
19 | PN A66 44 | PN | 18 30 11.242 | -16 45 26.32 | ~ | 43 | 0 | |||||
20 | IC 4732 | PN | 18 33 54.6340681272 | -22 38 41.382665232 | 12.5 | ~ | 147 | 0 | ||||
21 | IC 4776 | PN | 18 45 50.705 | -33 20 34.12 | 11.98 | 10.62 | [WC]pec | 194 | 1 | |||
22 | PN K 3-30 | PN | 19 16 27.6992127396 | +05 13 19.413334064 | ~ | 37 | 0 | |||||
23 | PN Hu 1-2 | PN | 21 33 08.3106242400 | +39 38 09.554428752 | 12.0 | ~ | 286 | 1 | ||||
24 | PN M 1-80 | PN | 22 56 19.89864 | +57 09 20.8656 | ~ | 97 | 2 |
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