1999ApJ...513..421H

Query : 1999ApJ...513..421H

1999ApJ...513..421H - Astrophys. J., 513, 421-427 (1999/March-1)

Subarcsecond optical imaging of proto-planetary nebulae.

HRIVNAK B.J., LANGILL P.P., SU K.Y.L. and KWOK S.

Abstract (from CDS):

Subarcsecond (0".75) V and I images have been obtained of 13 new proto-planetary nebulae (PPNs). We find nine of them to be resolved, with sizes up to 3", and two others to perhaps also be extended. Of the nine, four appear to be elliptical in shape. Thus an aspherical morphology is demonstrated to commonly exist early in the transition between the asymptotic giant branch and planetary nebula phases. The results of this larger observational study, together with the previously published imaging studies, indicate that most PPNs are elliptical (or bipolar) in shape.

Abstract Copyright: ∼

Journal keyword(s): ISM: Structure - Stars: Imaging - Stars: Mass Loss - Stars: AGB and Post-AGB

Simbad objects: 20

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Number of rows : 20
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 IRAS 00210+6221 C*? 00 23 50.861 +62 38 10.85           ~ 41 1
2 IRAS 01174+6110 LP* 01 20 44.2339814424 +61 26 15.794759220     18.3     ~ 19 0
3 RAFGL 618 pA* 04 42 53.6242032600 +36 06 53.400902220   16.32   12.59   C-rich 1027 0
4 HD 44179 pA* 06 19 58.2185496 -10 38 14.706068 9.51 9.33 9.02     B9Ib/II 800 0
5 IRAS 16559-2957 pA* 16 59 08.2318866480 -30 01 40.247567184   13.578 13.016 13.059   F5I(e) 33 0
6 IRAS 17106-3046 pA* 17 13 51.7976155656 -30 49 40.722991968       15.070   F5I 34 0
7 RAFGL 6815S pA* 17 18 19.8040606320 -32 27 21.547417932           G2I 153 0
8 IRAS 17245-3951 pA* 17 28 04.6523711554 -39 53 44.300653761     16.468   13.168 F6I 39 0
9 HD 161796 pA* 17 44 55.4694563472 +50 02 39.482823336 8.00 7.68 7.21 6.77 6.51 F3Ib 335 0
10 RAFGL 5385 pA* 17 47 13.48944 -24 12 51.4404           F4I 79 0
11 HD 335675 pA* 18 11 30.6621530616 +27 05 15.637762608   11.52 10.55     F3Ib 119 0
12 HD 179821 pA* 19 13 58.6082398776 +00 07 31.935181836 10.81 9.694 8.19     G4_0-Ia 247 0
13 IRAS 19374+2359 PN 19 39 35.5440976632 +24 06 27.057100428           B3-6I 44 0
14 HD 331319 pA* 19 49 29.5618298904 +31 27 16.248771432 10.4 9.91 9.32 9.24   F3Ibe 99 0
15 IRAS 19477+2401 pA* 19 49 54.9088013304 +24 08 53.507444604       20.0   F4/7I 48 0
16 IRAS 20000+3239 LP* 20 01 59.5133268456 +32 47 32.799122916   16.13 13.39 11.80 10.32 ~ 84 0
17 IRAS 20028+3910 pA* 20 04 35.9834860344 +39 18 44.208893700           F3-7I 65 0
18 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 892 1
19 IRAS 22574+6609 pA* 22 59 18.3496246536 +66 25 47.940897972       19.2   A1-6I 56 0
20 IRAS 23304+6147 pA* 23 32 44.7858431592 +62 03 49.090372272   15.36 12.99 12.23 10.50 G2Ia 121 0

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