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MUSE spectroscopy of the compact dual AGN in the radio-loud gravitational lens MG B2016+112
Jianghao Huyan, Júlia M. Sisk-Reynés, Daniel A. Schwartz +4
Dual active galactic nuclei (AGN) are unique laboratories for studying how galaxy mergers trigger accretion onto supermassive black holes (SMBHs). However, at redshifts , only…
Speeding up Gravitational Lens Mass Models with Machine Learning: Applications in X-ray Astronomy
Alex Ostridge, Rafael Martínez-Galarza, Júlia M. Sisk-Reynés +2
Multi-wavelength observations of quadruply lensed quasars constitute a powerful probe of cosmology, dark matter substructure along the line of sight, and the structure of X-ray emi…
Galaxies as High-Resolution Telescopes
Anna Barnacka
Recent observations show a population of active galaxies with milliarcseconds offsets between optical and radio emission. Such offsets can be an indication of extreme phenomena ass…
Flux upper limits for 47 AGN observed with H.E.S.S. in 2004-2011
H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +217
About 40% of the observation time of the High Energy Stereoscopic System (H.E.S.S.) is dedicated to studying active galactic nuclei (AGN), with the aim of increasing the sample of…