Seismic Image Waves     

Peter Hubral  Martin Tygel  Jöurg Schleicher 《Geophysical Journal International》1996,125(2):431-442

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A Possible Mechanism to Form Low Mass Objects at Low Redshifts     

André Ribeiro  Patricio Letelier 《Astrophysics and Space Science》2005,298(4):509-518

We develop a quantitative criterion for the collapse of matter within a region where a global texture just collapsed and a non-zero peculiar velocity field is produced. We also describe the evolution of the density contrast in this region according to the non-linear spherical collapse model. In particular, we find that the overdensity needed to virialisation is reached at z ≤ 2.2, covering a mass range of about 10⁴–10⁷ M_⊙ in the context of an Einstein-de Sitter universe.  相似文献