Bibcode
Santander-García, M.; Corradi, R. L. M.; Balick, B.; Mampaso, A.
Bibliographical reference
Astronomy and Astrophysics, v.426, p.185-194 (2004)
Advertised on:
10
2004
Journal
Citations
48
Refereed citations
40
Description
The structure and kinematics of the bipolar nebula Mz 3 have been
investigated by means of HST, CTIO and ESO images and spectra. At least
four distinct outflows have been identified which, from the inside to
the outside, are the following: a pair of bright bipolar lobes, two
opposite highly collimated column-shaped outflows, a conical system of
radial structure, and a very dim, previously unnoticed, low-latitude and
flattened (ring-like) radial outflow. A simple Hubble-law describes the
velocity field of the ballisticaly expanding lobes, columns and rays,
suggesting that their shaping has being done at very early stages of
evolution, in a sort of eruptive events with increasing degree of
collimation and expansion ages ranging from ˜600 for the inner
structures to ˜1600 years (per kpc to the nebula) for the largest
ones.