296 citations · 6.5k across the 170 of their papers we have counts for
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High-redshift objects and the generalized Chaplygin gas
J. S. Alcaniz, Deepak Jain, Abha Dev
Motivated by recent developments in particle physics and cosmology, there has been growing interest in an unified description of dark matter and dark energy scenarios. In this pape…
Cosmological consequences of a Chaplygin gas dark energy
Abha Dev, J. S. Alcaniz, Deepak Jain
A combination of recent observational results has given rise to what is currently known as the dark energy problem. Although several possible candidates have been extensively discu…
Deflationary cosmology: constraints from angular size and ages of globular clusters
J. V. Cunha, J. S. Alcaniz, J. A. S. Lima
Observational constraints to a large class of decaying vacuum cosmologies are derived using the angular size data of compact radio sources and the latest age estimates of globular…
Cosmological implications of old galaxies at high redshifts
J. A. S. Lima, J. S. Alcaniz
Old high- galaxies are important tools for understanding the structure formation problem and may become the key to determine the ultimate fate of the Universe. In this {\it lett…