2001PASP..113..846P

Query : 2001PASP..113..846P

2001PASP..113..846P - Publ. Astron. Soc. Pac., 113, 846-850 (2001/July-0)

Bipolar nebulae: the missing population.

PHILLIPS J.P.

Abstract (from CDS):

We have undertaken an analysis of observed aspect ratios for the collimation disks in bipolar nebulae (BPNe). We find, as a result, that most such structures are likely to have a ratio of thickness to diameter b/a∼0.23. Similarly, the paucity of disks having aspect ratios ≥0.7 implies that many of the sources are either unobserved or, what is more probably the case, misidentified. It seems likely, as a result, that the true population of BPNe is ∼1.7 times greater than previously supposed. Similarly, we determine that as many as of 43% of annular or ringlike planetaries may represent bipolar sources oriented along the line of sight.

Abstract Copyright: ∼

Journal keyword(s): ISM: Jets and Outflows - ISM: Planetary Nebulae: General

CDS comments: IRAS 17150 = IRAS 17150-3224.

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 - 2026 		#notes
1 M 76 PN 01 42 19.6557728208 +51 34 31.534970052     17.48   17.69 DOZ 385 2
2 PN K 3-93 PN 02 26 30.015 +65 47 53.09           ~ 28 0
3 PN K 3-72 PN 06 23 54.880 +05 30 12.88           ~ 37 0
4 PN M 1-8 PN 06 53 33.795 +03 08 26.96   11.7       ~ 104 0
5 NGC 2346 PN 07 09 22.5215800440 -00 48 23.610997332   11.76 11.58     A5V 592 0
6 PN M 3-2 PN 07 14 49.9223169552 -27 50 23.233595640           ~ 88 0
7 NGC 2818A PN 09 16 01.4901525600 -36 37 37.516376856           ~ 239 1
8 THA 35-II-27 PN 10 19 32.501 -60 13 29.48     12.5     B:Ie 90 0
9 WRAY 16-89 PN 11 27 24.31 -57 17 58.9     15.00     ~ 48 0
10 WRAY 16-115 PN 12 28 46.8457795246 -63 44 37.072611293     15.70     ~ 59 0
11 PN MyCn 18 PN 13 39 35.0596178496 -67 22 51.750497136   13.30 12.54 13.19 12.61 ~ 293 1
12 IC 4406 PN 14 22 26.1440976888 -44 09 02.185112988   11.5 10.90     ~ 294 1
13 PN Pe 1-4 PN 16 08 58.8245963664 -51 01 56.252720676   19.1 17.60     ~ 59 0
14 NGC 6072 PN 16 12 58.3635385680 -36 13 47.395106184     12.10     ~ 182 1
15 PN M 2-9 PN 17 05 37.96152 -10 08 32.5068           ~ 532 0
16 NGC 6302 PN 17 13 44.5 -37 06 11           O-rich 821 2
17 RAFGL 6815S pA* 17 18 19.8040606320 -32 27 21.547417932           G2I 153 0
18 RAFGL 5385 pA* 17 47 13.48944 -24 12 51.4404           F4I 79 0
19 PN M 1-28 PN 17 47 38.3 -22 06 20   18.9       ~ 62 0
20 NGC 6445 PN 17 49 15.0282384611 -20 00 34.159640072   18.9       ~ 302 0
21 NGC 6537 PN 18 05 13.104 -19 50 34.88     13.58     ~ 438 1
22 PN M 3-55 PN 18 33 14.773 -10 15 19.45           ~ 46 0
23 PN PC 20 PN 18 43 03.474 -00 16 37.73         16.80 ~ 26 0
24 PN M 1-59 PN 18 43 20.191200 -09 04 49.02708       13.885 13.700 ~ 102 1
25 PN M 2-46 PN 18 46 34.6173214361 -08 28 01.989963760         15.183 ~ 76 0
26 M 57 PN 18 53 35.0967659112 +33 01 44.883287544   15.405 15.769 15.901 16.062 DA(O?) 868 2
27 PN M 4-12 PN 19 13 05.4493583551 +15 46 39.915114808   16.327 15.095 15.678   ~ 100 0
28 PN M 4-14 PN 19 21 00.718 +07 36 52.37           ~ 56 0
29 PN K 3-46 PN 19 50 00.313 +33 45 51.84   19.1       ~ 36 0
30 PN M 2-48 PN 19 50 28.52520 +25 54 29.5452           ~ 88 0
31 PN M 1-75 PN 20 04 44.21070 +31 27 26.6673           ~ 102 2
32 PN K 3-55 PN 20 06 56.2756808832 +32 16 37.344147528           ~ 42 0
33 PN K 3-58 PN 20 21 58.279 +29 59 21.08           ~ 34 0
34 PN Sd 1 PN 20 29 18.931 +40 15 20.60           ~ 32 0
35 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 892 1
36 SH 1-89 PN 21 14 07.628 +47 46 22.17           ~ 70 0
37 PN G102.9-02.3 PN 22 26 17.2674430392 +54 49 38.244198288   17.825 16.965 16.397 15.743 ~ 79 0

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