Detection of brown dwarfs by the microlensing of unresolved stars

Nov 19, 1992
18 pages
Published in:
  • Astron.Astrophys. 277 (1993) 1-9
e-Print:
Report number:
  • PAR-LPTHE-92-39,
  • LPC-92-17

Citations per year

199420012008201520210246810
Abstract: (arXiv)
The presence of brown dwarfs in the dark galactic halo could be detected through their gravitational lensing effect and experiments under way monitor about one million stars to observe a few lensing events per year. We show that if the photon flux from a galaxy is measured with a good precision, it is not necessary to resolve the stars and besides more events could be observed.
Note:
  • 14 p., LaTeX, 4 figures available on request, PAR-LPTHE 92 39/LPC 92 17 Journal-ref: Astron.Astrophys. 277 (1993) 1-9