ar X iv : a st ro - p h / 02 08 29 8 v 2 1 6 A ug 2 00 2 Abundances of Molecular Species in Barnard 68

ar X iv : a st ro - p h / 02 08 29 8 v 1 1 5 A ug 2 00 2 Abundances of Molecular Species in Barnard 68

Abundances for 5 molecules (CO, CS, NH3, H2CO, and C3H2) and 1 molecular ion (N2H ) and upper limits for the abundances of 1 molecule (CO) and 1 molecular ion (HCO) are derived for gas within the Bok globule Barnard 68 (B68). The abundances were determined using our own BIMA millimeter interferometer data and single-dish data gathered from the literature, in conjunction with a Monte Carlo radia...

ar X iv : a st ro - p h / 02 11 58 1 v 1 2 6 N ov 2 00 2 1 MOLECULAR ABUNDANCES IN BARNARD 68

Abundances for CO, CS, NH3, H2CO, C3H2, and N2H + and upper limits for the abundances of CO and HCO are derived for gas within the Bok globule B68 using our own BIMA array data, single-dish data from the literature, and Monte Carlo radiative transfer models. B68 has had its density structure well determined, removing a major uncertainty from abundance determinations. All abundances for B68 are ...

ar X iv : a st ro - p h / 02 08 10 8 v 1 6 A ug 2 00 2 Astro Particle Physics from Space

We review how some open issues on Astro Particle physics can be studied by space born experiments in a complementary way to what is being done at underground and accelerators facilities 1 At the beginning it was Astro Particle This figure shows the conference photo taken at the 1939 Chicago Symposium on Cosmic Rays. Among the partecipants we find a quite exceptional group of physicists: Kohlost...

ar X iv : a st ro - p h / 04 08 13 5 v 1 9 A ug 2 00 4 A Determination of the Chemical Composition of α Centauri A from Strong Lines

ar X iv : m at h / 05 08 29 7 v 1 [ m at h . ST ] 1 6 A ug 2 00 5 CONVERGENCE OF ESTIMATORS IN LLS ANALYSIS

We establish necessary and sufficient conditions for consistency of estimators of mixing distribution in linear latent structure analysis.