2001A&A...376..484J


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.28CET07:30:28

2001A&A...376..484J - Astronomy and Astrophysics, volume 376, 484-488 (2001/9-3)

A disrupted molecular ring in planetary nebula G119.3+00.3 (BV 5-1).

JOSSELIN E. and BACHILLER R.

Abstract (from CDS):

New, high-sensitivity interferometric CO observations of BV 5-1 show that the molecular gas in this bipolar planetary nebula is distributed along a very inhomogeneous ring made of clumps. The individual masses of such molecular clumps are ∼10–4M. The BV 5-1 molecular ring is seen edge-on, it is nearly perpendicular to the axis of bipolarity of the nebula, and it is expanding with an expansion velocity of ∼9km/s. BV 5-1 is confirmed to be a relatively evolved nebula, as indicated by both its kinematic age (∼2.4x104yrs) and its molecular to ionized mass ratio (∼0.3). The structure of the BV 5-1 molecular ring, as well as that of other rings previously observed in a few additional nebulae, underscore the importance of strongly asymmetrical mass loss processes starting early at the asymptotic giant branch phase.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - planetary nebulae: individual: BV 5-1 - radio lines: ISM - stars: mass loss

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PN BV 1 PN 00 20 00.450 +62 59 03.16           ~ 53 0
2 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1445 0
3 PN M 1-16 PN 07 37 18.902 -09 38 47.96   12.7       ~ 176 0
4 PN M 2-9 PN 17 05 37.952 -10 08 34.58   12.59 14.7     Be 504 0
5 4C 73.18 BLL 19 27 48.4944745594 +73 58 01.571908984     15.5 15.11   ~ 495 2
6 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 710 0
7 PN KjPn 8 PN 23 24 10.472 +60 57 30.75           ~ 111 0

    Equat.    Gal    SGal    Ecl

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2020.10.28-07:30:28

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