2003A&A...405L..11I


Query : 2003A&A...405L..11I

2003A&A...405L..11I - Astronomy and Astrophysics, volume 405, L11-14 (2003/7-1)

Blowing up warped disks.

ICKE V.

Abstract (from CDS):

Stars do not go gently: even low-mass stars such as our Sun blow up in the end, seeding space with the elements of which we are made. Usually, the resulting nebulae show a pronounced bipolar or even multipolar shape. Balick's ``generalized interacting-winds'' model posits that this is due to an interaction between a very fast tenuous outflow, and a disk-shaped denser atmosphere left over from an earlier slow phase of mass loss. Analytical and numerical work shows that this mechanism can explain cylindrically symmetric nebulae. However, many circumstellar nebulae have a ``multipolar'' or ``point-symmetric'' shape. I demonstrate that these seemingly enigmatic forms can be easily reproduced by a two-wind model in which the confining disk is warped, as is expected to occur in irradiated disks. Large-scale explosions in other non-planar disks, such as might occur in active galaxies, are expected to show similar patterns.

Abstract Copyright:

Journal keyword(s): stars: planetary nebulae - hydrodynamics

Simbad objects: 4

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Number of rows : 4
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 3242 PN 10 24 46.1335521792 -18 38 32.296857792   11.83 12.15     ~ 814 1
2 NGC 6751 PN 19 05 55.5383775432 -05 59 32.288861544   15.78 15.48     [WC4] 325 0
3 NGC 7009 PN 21 04 10.8155187648 -11 21 48.580157556   12.48 12.07     ~ 986 1
4 NGC 7662 PN 23 25 53.6 +42 32 06   9.4 12     ~ 921 0

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2023.02.07-05:39:11

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