ar X iv : a st ro - p h / 04 02 42 8 v 2 1 8 N ov 2 00 5 Unbiased estimation of an angular power spectrum

ar X iv : a st ro - p h / 04 11 16 2 v 1 8 N ov 2 00 4 Chandra observations of the recurrent nova IM Nor

The recurrent nova IM Nor was observed twice in X-rays with Chandra ACISS, 1 and 6 months after the optical outburst. It was not detected in the first

ar X iv : a st ro - p h / 02 10 42 8 v 1 1 8 O ct 2 00 2 Star Clusters in Interacting Galaxies : The Case of M 51 Nate

ar X iv : h ep - t h / 02 11 04 8 v 1 7 N ov 2 00 2 Inflation , Quantum Cosmology and the Anthropic Principle 1

ar X iv : a st ro - p h / 02 11 56 8 v 1 2 6 N ov 2 00 2 1 Properties of tangential and radial angles of muons in EAS ∗

Tangential and radial angles of muons in EAS, a useful concept in investigation of the muon production height, can be used also for the investigation of the muon momenta. A parameter ζ, being a combination of tangential and radial angles, is introduced and its possible applications in investigation of muons in showers are presented.

ar X iv : a st ro - p h / 02 11 45 7 v 1 2 0 N ov 2 00 2 Time variation of fundamental constants : two phenomenological models

Time variation of fundamental constants, a strong signal of new physics, is analyzed comparing extant data with two phenomenological models. Results are discussed.