64 citations · 539 across the 29 of their papers we have counts for
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Joining forces: 30 years of optical monitoring of the Einstein Cross
V. N. Shalyapin, L. J. Goicoechea, R. Gil-Merino +5
We present an extended optical monitoring of the quadruply-imaged gravitationally lensed quasar QSO 2237+0305, the Einstein Cross, including observations from different observatori…
Primordial black holes in the main lensing galaxy of FBQ 0951+2635
Daniel Isla, Luis J. Goicoechea, Ana Esteban-Gutiérrez +4
Although dark matter in galaxies may consist of elementary particles different from those that make up ordinary matter and that would be smoothly distributed (still undetected), th…
New database for a sample of optically bright lensed quasars in the northern hemisphere
Rodrigo Gil-Merino, Luis J. Goicoechea, Vyacheslav N. Shalyapin +1
In the framework of the Gravitational LENses and DArk MAtter (GLENDAMA) project, we present a database of nine gravitationally lensed quasars (GLQs) that have two or four images br…
Continuum reverberation mapping in a z = 1.41 radio-loud quasar
L. J. Goicoechea, V. N. Shalyapin, R. Gil-Merino +1
Q0957+561 was the first discovered gravitationally lensed quasar. The mirage shows two images of a radio-loud quasar at redshift z = 1.41. The time lag between these two images is…
Accretion Onto the Supermassive Black Hole in the High-redshift Radio-loud AGN 0957+561
Rodrigo Gil-Merino, Luis J. Goicoechea, Vyacheslav N. Shalyapin +1
We present the results of our X-ray, UV and optical monitoring campaign of the first gravitationally lensed AGN from late 2009 to mid 2010. The trailing (B) image of the AGN 0957+5…