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5 papers · 1 filter
Was the propeller mechanism active during the periastron passage of PSR 1259--63?
S. Campana, M. Colpi, S. Mereghetti +1
Timing analisys of PSR 1259-63 during its recent periastron passage suggested that the pulsar was spinning-down due to the propeller mechanism (Manchester et al. 1995). This requir…
Colors, Luminosity Function and Counts of Galaxies
P. Saracco, G. Chincarini, A. Iovino
Standard models for deep galaxy counts are based on luminosity functions (LF) with relatively flat faint end (). Galaxy counts in the B--band exceed the prediction of su…
Strong gravitational field light deflection in binary systems containing a collapsed star
S. Campana, A. Parodi, L. Stella
Large light deflection angles are produced in the strong gravitational field regions around neutron stars and black holes. In the case of binary systems, part of the photons emitte…
A Study of the Large--Scale Distribution of Galaxies in the South Galactic Pole Region: I. The Data
S. Ettori, L. Guzzo, M. Tarenghi
We present the data from an extensive, moderately deep (b_J = 19.5) spectroscopic survey of galaxies within four regions of sky located near the South Galactic Pole. Abo…
What is the Small-Scale Velocity Dispersion of Galaxy Pairs?
L. Guzzo, K. B. Fisher, M. S. Strauss +2
We present some new results from an ongoing investigation of the anisotropy of the two--point correlation function for optically selected galaxies. We have estimated xi(r_p,pi) fro…