2006A&A...451..937S


Query : 2006A&A...451..937S

2006A&A...451..937S - Astronomy and Astrophysics, volume 451, 937-949 (2006/6-1)

The structure of planetary nebulae: theory vs. practice.

SABBADIN F., TURATTO M., RAGAZZONI R., CAPPELLARO E. and BENETTI S.

Abstract (from CDS):

This paper is the first in a short series dedicated to the long-standing astronomical problem of de-projecting the bi-dimensional, apparent morphology of a three-dimensional mass of gas. We focus on the density distribution in real planetary nebulae (and all types of expanding nebulae). We introduce some basic theoretical notions, discuss the observational methodology, and develop an accurate procedure for determining the matter radial profile within the sharp portion of nebula in the plane of the sky identified by the zero-velocity-pixel-column (zvpc) of high-resolution spectral images. The general and specific applications of the method (and some caveats) are discussed. Moreover, we present a series of evolutive snapshots, combining illustrative examples of both model and true planetary nebulae. The zvpc radial-density reconstruction - added to tomography and 3D recovery developed at the Astronomical Observatory of Padua (Italy) - constitutes a very useful tool for looking more closely at the spatio-kinematics, physical conditions, ionic structure, and evolution of expanding nebulae.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - ISM: kinematics and dynamics - ISM: structure

Simbad objects: 37

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Number of rows : 37
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 40 PN 00 13 01.0170097248 +72 31 19.033338720   11.63 11.46     [WC8] 606 2
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6562 1
3 NGC 2022 PN 05 42 06.1904253312 +09 05 10.585995576   14.9 14.2     [WC] 357 0
4 NGC 2438 PN 07 41 50.5194253896 -14 44 07.470144744           ~ 281 3
5 NGC 2440 PN 07 41 54.91 -18 12 29.7   18.9       ~ 644 2
6 NGC 2818A PN 09 16 01.4901525600 -36 37 37.516376856           ~ 227 1
7 PN My 59 PN 10 23 09.1381004472 -60 32 42.103742784           O(H)7-9I 126 0
8 NGC 4361 PN 12 24 30.7510527528 -18 47 05.567336304   12.8 13.2     [WC] 390 1
9 IC 4406 PN 14 22 26.1440976888 -44 09 02.185112988   11.5 10.90     ~ 277 0
10 HD 138403 PN 15 37 11.2073139768 -71 54 52.887104280   10.24 10.47 11.01   O8(f)ep 260 0
11 HD 141969 PN 15 56 01.6950076104 -66 09 09.231820920 12.37 10.75 10.95 10.88   BC0Ibe 212 0
12 NGC 6058 PN 16 04 26.5481632728 +40 40 58.949391036     13.0     sd 195 0
13 PN Mz 3 PN 16 17 13.3915382496 -51 59 10.711893480   10.8 14.00     O9.5 345 0
14 NGC 6210 PN 16 44 29.5191019368 +23 47 59.421958296   12.3 11.7     Of/[WR] 583 0
15 NGC 6302 PN 17 13 44.51256 -37 06 11.3616           O-rich 779 1
16 PN Tc 1 PN 17 45 35.2879212240 -46 05 23.717122728   11.30 11.49     PCyg 251 0
17 NGC 6445 PN 17 49 15.21 -20 00 34.5   18.9       ~ 290 0
18 NGC 6565 PN 18 11 52.4858232888 -28 10 42.421241244   12.5 12.2 12.12   PN 224 0
19 NGC 6572 PN 18 12 06.3181909152 +06 51 13.027935240   9.3 10.8     [WC] 747 0
20 NGC 6567 PN 18 13 45.1636643352 -19 04 34.071637152     10.9     [WC5/6] 268 1
21 NGC 6620 PN 18 22 54.182 -26 49 17.19   12.8 13.30 14.34 14.55 ~ 137 0
22 PN M 1-46 PN 18 27 56.3175434256 -15 32 54.434037264     12.83     O(H)7I(fc) 123 0
23 M 57 PN 18 53 35.0967659112 +33 01 44.883287544   15.405 15.769 15.901 16.062 DA(O?) 818 2
24 NGC 6741 PN 19 02 37.10 -00 26 56.7     9.6     ~ 345 0
25 NGC 6803 PN 19 31 16.47 +10 03 21.7     15.2     ~ 246 0
26 NGC 6804 PN 19 31 35.1453655872 +09 13 31.298620188   13.4 13.4     ~ 212 1
27 HD 184738 PN 19 34 45.2337620448 +30 30 58.950651240   10.41 10.44     [WC9] 939 0
28 NGC 6826 PN 19 44 48.1500225888 +50 31 30.249034932   10.21 9.6     O6fp 714 0
29 NGC 6886 PN 20 12 42.83 +19 59 22.6           ~ 318 0
30 NGC 6891 PN 20 15 08.8435405584 +12 42 15.584146740   12.11 12.51     O3Ib(f*) 390 0
31 NGC 6894 PN 20 16 23.965 +30 33 53.17           ~ 198 0
32 NGC 7009 PN 21 04 10.8155187648 -11 21 48.580157556   12.48 12.07     ~ 986 1
33 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2418 1
34 PN Hu 1-2 PN 21 33 08.3106242400 +39 38 09.554428752     12.0     ~ 282 1
35 NGC 7094 PN 21 36 52.9687364088 +12 47 19.099274136     13.35     ~ 185 0
36 NGC 7293 PN 22 29 38.5454047152 -20 50 13.747242408 11.894 13.158 13.524 13.689 13.898 DAO.5 930 0
37 NGC 7662 PN 23 25 53.6 +42 32 06   9.4 12     ~ 921 0

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2023.02.02-20:05:26

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