3 papers
astro-ph2007
A model of accelerating dark energy in decelerating gravity
M. Roos
The expansion of the Universe is accelerated as testified by observations of SNeIa at varying redshifts. Explanations of this acceleration are of two kinds: modifications of Einste…
astro-ph2001
Statistical evaluation of the observational information on and
S. M. Harun-or-Rashid, M. Roos
We undertake a critical evaluation of recent observational information on and in order to identify possible sources of systematic errors and effects of simplified stati…
astro-ph1997
The case for a cosmological constant
Matts Roos, S. M. Harun-or-Rashid
Taking the Hubble constant to be in the range 60 - 75 km/s Mpc we show that three independent conditions strongly rule out the standard model of flat space with vanishing cosmologi…