3 papers
astro-ph1999
A survey of UV-excess AGNs in the South Galactic Pole
F. La Franca, C. Lissandrini, S. Cristiani +3
Spectra, position, magnitudes and colors are presented for 485 faint (B<20.5) emission line objects selected with the ultraviolet-excess (UVX) criterion on a area of 24.6 sq. deg i…
astro-ph1998
The Signature of Dark Matter in Quasar Light Curves
M. R. S. Hawkins
The idea that dark matter in the form of small compact bodies (most plausibly planetary mass primordial black holes) betrays its presence by the microlensing of quasars, has been s…
astro-ph1998
Caustic Crossings in Quasar Light Curves?
M. R. S. Hawkins
Numerical simulations and theoretical studies of the gravitational microlensing effect of a population of small bodies distributed along the line of sight to a compact light source…