ar X iv : a st ro - p h / 02 06 33 9 v 1 1 9 Ju n 20 02 Corrective lenses for high redshift supernovae

ar X iv : a st ro - p h / 99 02 29 8 v 2 1 3 A pr 1 99 9 New limits on Ω Λ and Ω M from old galaxies at high redshift

ar X iv : a st ro - p h / 02 05 06 4 v 2 1 1 Ju l 2 00 2 Interpretations of the Accelerating Universe

It is generally argued that present cosmological observations support the accelerating models of the universe, as driven by a cosmological constant or 'dark energy'. We argue here that an alternative model of the universe is possible, which explains the current observations of the universe. We demonstrate this with a reinterpretation of the magnitude-redshift relation for Type Ia supernovae, si...

ar X iv : a st ro - p h / 02 06 16 6 v 1 1 1 Ju n 20 02 How fast could a proto - pulsar rotate ?

According to two estimated relations between the initial period and the dynamo-generated magnetic dipole field of pulsars, we calculate the statistical distributions of pulsar initial periods. It is found that proto-pulsars are very likely to have rotation periods between 20 and 30 ms, and that most of the pulsars rotate initially at a period < 60 ms.

ar X iv : a st ro - p h / 99 02 06 2 v 1 4 F eb 1 99 9 SOURCES OF RELATIVISTIC JETS IN THE GALAXY

ar X iv : a st ro - p h / 03 06 45 9 v 1 2 3 Ju n 20 03 Extinction by grey dust in the intergalactic medium

Condensation in the outer regions of decaying supernovae is an efficient source of dust with grain size up to more than 1µm. The largest grains leave the parent galaxy, thus forming " grey " intergalactic dust, which can explain the observed dimming of light from distant supernovae without invoking cosmic acceleration.