Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mnras.328..708d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 328, Issue 3, pp. 708-718.
Astronomy and Astrophysics
Astronomy
48
Hydrodynamics, Galaxies: Ism, Galaxies: Kinematics And Dynamics, Galaxy: Disc, Galaxy: Evolution
Scientific paper
Three-dimensional modelling of the flow of gas and plasma in a section of the Galaxy has been carried out to study the evolution and formation of Galactic chimneys and worms. It is found that clustered supernovae located on either side of the Galactic plane are sources for the formation of well-collimated chimneys, having widths of ~150-200pc. The thick gas disc may have a role in the collimation of chimneys. Channel maps of disc gas, obtained from the simulations, show the presence of sheet-like structures running perpendicular to the Galactic plane and resembling worms. Worms are believed to result from the break-up of the shells and supershells. However, the simulations show that although some worms correlate well with the debris of broken shells/supershells, others do not. They are cold gas that has been accelerated in the disc and rise on to the thick gas disc.
Berry David L.
de Avillez Miguel A.
No associations
LandOfFree
Three-dimensional evolution of worms and chimneys in the Galactic disc does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Three-dimensional evolution of worms and chimneys in the Galactic disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-dimensional evolution of worms and chimneys in the Galactic disc will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1106231