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astro-ph2000★ 95 cited
Constraining the cosmic equation of state from old galaxies at high redshift
J. A. S. Lima, J. S. Alcaniz
New limits on the cosmic equation of state are derived from age measurements of three recently reported old high redshift galaxies (OHRG). The results are based on a flat FRW type…
astro-ph2000★ 6 cited
Angular size in quintessence cosmology
J. A. S. Lima, J. S. Alcaniz
We investigate the influence of an exotic fluid component ("quintessence") on the angular size-redshift relation for distant extragalactic sources. Particular emphasis is given for…