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Microlensing constraints on MACHO masses from the double quasar Q0957+561
New Astronomy Reviews, 1998Abstract Gravitational lensing can be used to determine whether the dark matter in galactic halos is in the form of objects of stellar or sub-stellar mass. Searches for these MACHOs (MAssive Compact Halo Objects) have become popular in our own Milky Way from studies of the rare events of a MACHO magnifying a star in the Large Magellanic Cloud.
Joachim Wambsganss, Robert Schmidt
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Double peaked broad line profiles — edge on accretion disks or double quasar nuclei?
2008It is pointed out that a significant fraction (over 50%) of quasars do not show smooth symmetric “logarithmic” broad line profiles, but instead show double broad line peaks, usually unequal in brightness, always one blueshifted and one redshifted relative to the systemic velocity.
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Double gravitationally lensed quasar J1721+8842 observed at the Maidanak observatory
Astronomical and Astrophysical TransactionsThis paper presents the results of observations and the light curve of the unique doubly gravitationally lensed quasar J1721+8842, observed at the Maidanak observatory from 2018 to 2024. It also includes the results of best image reduction using a deconvolution method that separates 6 lensed point-like images.
I.M. ASFANDIYAROV +2 more
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Understanding the Electric Double-Layer Structure, Capacitance, and Charging Dynamics
Chemical Reviews, 2022Jianzhong Wu
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Double-slit photoelectron interference in strong-field ionization of the neon dimer
Nature Communications, 2019Maksim Kunitski +2 more
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