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Constraining the Cosmological Density of Compact Objects with the Long-Term Variability of Quasars
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- Zackrisson, Erik (author)
- Uppsala universitet,Institutionen för astronomi och rymdfysik
- Bergvall, Nils (author)
- (creator_code:org_t)
- EDP SCIENCES, 2003
- 2003
- English.
- In: Astronomy & Astrophysics. - : EDP SCIENCES. - 0004-6361. ; 399:1, s. 23-32
- Journal article (peer-reviewed)
Abstract
Subject headings
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- By comparing the results from numerical microlensing simulations to the observed long-term variability of quasars, strong upper limits on the cosmological density of compact objects in the $10^{-4}\ M_\odot$--$1 \ M_\odot$ range may in principle be impose
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Dark matter -- gravitational lensing -- quasars: general -- cosmology: miscellaneous
- Astronomy and astrophysics
- Astronomi och astrofysik
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- ref (subject category)
- art (subject category)
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