Bibcode
Tenorio-Tagle, Guillermo; Pérez, Enrique; Muñoz-Tuñón, C.; Silich, Sergiy; Palouš, Jan
Referencia bibliográfica
Star clusters: basic galactic building blocks throughout time and space, Proceedings of the International Astronomical Union, IAU Symposium, Volume 266, p. 64-68
Fecha de publicación:
1
2010
Número de citas
0
Número de citas referidas
0
Descripción
We present a short summary of several 2D hydrodynamic calculations that
suggest that upon the collision of galaxies two physical mechanisms lead
to the formation of proto-super star clusters. These are condensation,
induced by radiative cooling, and implosion caused by the shocked
intercloud medium. Even in the absence of gravity, these lead to storage
and compression of the dense cloud component into massive and compact
gravitationally unstable condensations. The resulting entities exhibit
enhanced surface densities that are several hundred times higher than
their initial values. These are here postulated as the cradles of very
efficient and rapid star-formation episodes, able to withstand the
negative feedback effects associated with star formation, while leading
to the formation of massive and compact super star clusters.