6 citations · 11 across the 5 of their papers we have counts for
5 papers
The luminosity function of white dwarfs and M dwarfs, using dark nebulae as opaque outer screens
Leif Festin
By using dark nebulae as opaque outer screens, the luminosity function of white dwarfs and M dwarfs has been studied. High-extinction areas towards the Orion A, Serpens and rho Oph…
Brown Dwarfs in the Pleiades II. A deep optical and near-infrared survey
Leif Festin
The brown dwarf population in the Pleiades cluster has been probed in a deep 850 arcmin2 RIJK survey. The survey is complete to I=21.4 in 76% of the area and to I=20.2 in the remai…
Brown Dwarfs in the Pleiades, a deep IJK survey
L. Festin
An area large enough (180 sq arcmin) to put constraints on a possible low mass brown dwarf population in the Pleiades has been surveyed to very faint magnitudes in I, J and K. The…
Monitoring of the Einstein Cross with the Nordic Optical Telscope
R. Oestensen, S. Refsdal, R. Stabell +26
We report results from five years of monitoring of the Einstein Cross (Q 2237+0305) with the Nordic Optical Telescope. The photometry, mainly in the R and I bands, has been perform…
High-Resolution Imaging of the Gravitational Lens Candidate 1208+1011 with the Nordic Optical Telescope
Jens Hjorth, Frank Grundahl, Kari Nilsson +1
The large-redshift (z=3.8) quasar 1208+1011 has recently been discovered to be a gravitational lens candidate with a separation of 0.47" between the two imaged components (A and B)…