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20082023
most citedUltra-compact structure in intermediate-luminosity radio quasars: building a sample of standard cosmological rulers and improving the dark energy constraints up to

115 citations · 713 across the 18 of their papers we have counts for

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Showing 2011Show all

2 papers · 1 filter

astro-ph.CO2011★ 62 cited

Hubble parameter data constraints on dark energy

Yun Chen, Bharat Ratra

We use Hubble parameter versus redshift data from Stern, et al(2010) and Gaztañaga, et al (2009) to place constraints on model parameters of constant and time-evolving dark energy…

astro-ph.CO2011★ 25 cited

Galaxy cluster angular size data constraints on dark energy

Yun Chen, Bharat Ratra

We use angular size versus redshift data for galaxy clusters from Bonamente et al. (2006) to place constraints on model parameters of constant and time-evolving dark energy cosmolo…