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Stellar populations, neutral hydrogen and ionised gas in field early-type galaxies
Paolo Serra, Scott C. Trager, Tom A. Oosterloo +1
We present a study of the stellar populations of a sample of 39 local, field early-type galaxies whose HI properties are known from interferometric data. Our aim is to understand w…
Massive neutrinos and dark energy
Paolo Serra, Rachel Bean, Axel De La Macorra +1
We consider the impact of the Heidelberg-Moscow claim for a detection of neutrino mass on the determination of the dark energy equation of state. By combining the Heidelberg-Moscow…
Bayesian Evidence for a Cosmological Constant using new High-Redshift Supernovae Data
Paolo Serra, Alan Heavens, Alessandro Melchiorri
We carry out a Bayesian model selection analysis of different dark energy parametrizations using the recent luminosity distance data of high redshift supernovae from Riess et al. 2…