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On Planetary-Mass Compact Objects as Dark Matter

Published online by Cambridge University Press:  26 May 2016

Erik Zackrisson ,
Carina Persson  and
Nils Bergvall
Erik Zackrisson
Affiliation:
Uppsala Astronomical Observatory, Box 515, SE 751 20 Uppsala, Sweden
Carina Persson
Affiliation:
Uppsala Astronomical Observatory, Box 515, SE 751 20 Uppsala, Sweden
Nils Bergvall
Affiliation:
Uppsala Astronomical Observatory, Box 515, SE 751 20 Uppsala, Sweden

Abstract

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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.

Type
Part 4: Lensing
Information
Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 133 - 134
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Dalcanton, J. J., Canizares, C. R., Granados, A., Steidel, C. C., & Stocke, J. T. 1994, ApJ, 424, 550.CrossRefGoogle Scholar
Gibson, C. H., & Schild, R. E. 1999, astro-ph/9904362.Google Scholar
Hawkins, M. R. S. 2001, ApJ, 553, 97.Google Scholar
Schild, R. E. 1996, ApJ, 464, 125.CrossRefGoogle Scholar
Schneider, P. 1993, A&A, 279, 1.Google Scholar
Walker, M., & Wardle, M. 1999, PASA, 16, 262.CrossRefGoogle Scholar
Wiegert, C. C. 2003, astro-ph/0307465.Google Scholar
Zackrisson, E., & Bergvall, N. 2003, A&A, 399, 23.Google Scholar
Zackrisson, E., Bergvall, N., Marquart, T., & Helbig, P. 2003, A&A, 408, 17.Google Scholar