0 v 1 5 N ov 1 99 9 Identification of SH ∆ v = 1 ro - vibrational lines in R And

ar X iv : a st ro - p h / 97 11 24 4 v 1 2 0 N ov 1 99 7 POPULATION SYNTHESIS OF HIGH ENERGY TRANSIENTS RELATIVISTIC BINARY MERGING RATES

ar X iv : a st ro - p h / 95 11 14 4 v 1 2 9 N ov 1 99 5 The Tucana dwarf galaxy

Deep CCD photometry for the dwarf galaxy in Tucana is presented. Distance modulus and metallicity are derived, together with an estimate of the age of the galaxy.

ar X iv : a st ro - p h / 98 11 14 9 v 1 1 0 N ov 1 99 8 The BeppoSAX High Energy Large Area Survey ( HELLAS )

We have surveyed ∼ 50 deg of sky in the largely unexplored 5-10 keV band using the BeppoSAX MECS instrument, finding 180 sources. After correction for the non uniform sky coverage we find about 18 sources deg with F5−10keV > ∼ 5 × 10 erg cm s , and resolve 30-40 % of the hard 5-10 keV Cosmic X-ray Background (XRB). Optical identification of a first small sample of sources show that most (11 out...

ar X iv : a st ro - p h / 96 11 14 3 v 1 1 9 N ov 1 99 6 A high deuterium abundance in the early Universe

ar X iv : q ua nt - p h / 99 11 12 1 v 1 3 0 N ov 1 99 9 Born - Oppenheimer Approximation near Level Crossing

We consider the Born-Oppenheimer problem near conical intersection in two dimensions. For energies close to the crossing energy we describe the wave function near an isotropic crossing and show that it is related to generalized hypergeometric functions 0 F 3. This function is to a conical intersection what the Airy function is to a classical turning point. As an application we calculate the ano...