179 citations · 1.1k across the 39 of their papers we have counts for
Showing 2003Show all
2 papers · 1 filter
astro-ph2003★ 25 cited
Can Microlensing Explain the Long-Term Optical Variability of Quasars?
Erik Zackrisson, Nils Bergvall, Thomas Marquart +1
Although controversial, the scenario of microlensing as the dominant mechanism for the long-term optical variability of quasars does provide a natural explanation for both the stat…
astro-ph2003
Galaxy interactions - poor starburst triggers
Nils Bergvall, Eija Laurikainen, Susanne Aalto
We report on a study of tidally triggered star formation in galaxies, based on spectroscopic/photometric observations in the optical/near-IR of a magnitude limited sample of 59 sys…