ar X iv : a st ro - p h / 93 10 02 3 v 1 1 3 O ct 1 99 3 Mergers of Systems Containing Gas

ar X iv : a st ro - p h / 93 10 02 6 v 1 1 4 O ct 1 99 3 Alpha Clustering and the stellar nucleosynthesis of carbon

The astrophysical S–factor and reaction rates for the triple–alpha process are calculated in the direct–capture model. It is shown that the stellar carbon production is extremely sensitive to small variations in the N–N interaction.

ar X iv : a st ro - p h / 97 10 36 7 v 1 3 1 O ct 1 99 7 Geometrical parametrization of warps for edge - on galaxies

ar X iv : a st ro - p h / 93 10 02 8 v 1 1 4 O ct 1 99 3 WHAT DO WE MEAN BY ‘ MALMQUIST BIAS ’ ?

In this paper we review the two main approaches to the problem of Malmquist bias which have been adopted in the cosmology literature, and show how these two formulations of the problem represent fundamentally different views of the nature of probability. We discuss the assumptions upon which both approaches are based and indicate some of their limitations. In particular we identify a basic flaw...

ar X iv : a st ro - p h / 98 10 02 1 v 1 1 O ct 1 99 8 A NIR search for high - redshift clusters

We describe our preliminary results on a search for high-redshift (z > 0.5) galaxy clusters using near-infrared photometry obtained with the Omega camera at the 3.5m telescope at Calar Alto.

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