Evolution of spherical over-densities in tachyon scalar field model
We study the tachyon scalar field model in flat FRW cosmology with the particular potential ϕ−2 and the scale factor behavior a(t)=tn. We consider the spherical collapse model and investigate the effects of the tachyon scalar field on the structure formation in flat FRW universe. We calculate δc(zc)...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317305154 |