Astronomy and Astrophysics – Astronomy
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238....1t&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, May 1, 1989, p. 1-14.
Astronomy and Astrophysics
Astronomy
9
Galactic Clusters, Intergalactic Media, Oscillations, Perturbation Theory, Brunt-Vaisala Frequency, Isentropic Processes, Linear Systems, Mass Transfer, Steady Flow, Vibration Mode
Scientific paper
Oscillations of the intracluster medium in clusters of galaxies are studied by means of linear perturbations. An Eulerian analysis is given and its limitations discussed. The problem is then reformulated in terms of Lagrangian perturbations and an expression for the stability coefficient is given. The effect of a flow, such as occurs in cooling flow clusters, is included. The stability coefficient is formally the same whether or not a flow is present. Mass dropping out of or joining the flow can lead to instability. A time dependent flow leads to the modes evolving adiabatically if the period of oscillation is much shorter than the time-scale of evolution of the background. No assumptions of isobaricity, locality or high wavenumber perturbations are made.
No associations
LandOfFree
Oscillations in clusters of galaxies 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 Oscillations in clusters of galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oscillations in clusters of galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1874794