1997A&A...318..561K


Query : 1997A&A...318..561K

1997A&A...318..561K - Astronomy and Astrophysics, volume 318, 561-564 (1997/2-2)

Two planetary nebulae with tori of different development.

KERBER F. and CLAESKENS J.-F.

Abstract (from CDS):

In this paper we discuss the morphology of two bipolar planetary nebulae (PNe) based on broad-band (ESO/SERC) and narrow-band ([OIII] and Hα) images. At first sight both objects are similar and show two pronounced bright knots - the usual signature of a torus seen edge-on. We demonstrate though that the two objects are not two of a kind at this point but are rather representing two different stages of evolution. The brightness distribution found in Wei1-5 is well explained by a homogeneous torus with a ratio of radius to thickness of 2. KeWe1 is a complicated object showing point symmetry. It can be understood in terms of an incomplete ring, probably a torus caught in the process of breaking up due to the action of a strong wind from the central star.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - planetary nebulae: individual: Wei1-5 ([W95] 5, KeWe1 (BRAN 292)

CDS comments: Wei 1-5 = [W95] 5. Bran 292 = PN KW 11 (not 1)

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 PN K 1-10 PN 07 12 35.493 -16 05 59.71           ~ 41 0
2 NGC 2899 PN 09 27 03.02 -56 06 21.1     12.40     G0 148 0
3 CD-56 2932 PN 09 43 25.61980 -57 16 55.6095   11.85 11.17 11.21   A2II 120 0
4 KLSS 1-12 PN 10 10 33.5 -53 56 08           ~ 12 0
5 PN We 4-5 PN 19 14 11.465 -23 41 27.85           ~ 9 0

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2022.05.23-10:30:10

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