Influence of galactic nuclear explosions on the efficiency of the process of star formation

Details Influence of galactic nuclear explosions on the efficiency of the process of star formation Influence of galactic nuclear explosions on the efficiency of the process of star formation

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.116..313s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 116, no. 2, Nov. 1985, p. 313-324.

Astronomy and Astrophysics

Astrophysics

2

Critical Mass, Galactic Nuclei, Interstellar Gas, Protostars, Shock Waves, Star Formation, Compressed Gas, Explosions, Gravitational Collapse, Jeans Theory, Pressure Effects, Shock Layers, Shock Wave Propagation

Scientific paper

Periodic explosions in the nucleus of a galaxy generate strong shock waves. The shock waves, in moving outwards, produce highly compressed thin layers of gas at distances much larger than the thickness of the layer. When the gas in this layer undergoes fragmentation, the Jeans mass is found to be much less than that if the fragmentation proceeded under normal gravitational pull. It is, therefore, concluded that the explosive events in the galactic centres make the process of star formation highly efficient in the central region of galaxies.

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