On Planetary-Mass Compact Objects as Dark Matter

Erik Zackrisson, Carina Persson, Nils Bergvall
2004 Symposium - International astronomical union  
We assess to what extent the claimed signature of planetarymass compact objects in the long-term optical light curves of quasars really can be explained by the dark matter populations allowed in the currently favoured ΩM= 0.3, ΩΛ= 0.7 cosmology. Revised upper limits on the cosmological density of planetary-mass compact objects inferred from the statistics of quasar light curves and the equivalent widths of quasar emission lines are also presented.
doi:10.1017/s0074180900183019 fatcat:s75jiejrhnfdnm7q5upime5njq