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astro-ph.HE2025★ 9 cited
The eROSITA Final Equatorial Depth Survey (eFEDS): SDSS spectroscopic observations of X-ray sources
Catarina Aydar, Andrea Merloni, Tom Dwelly +45
We present one of the largest uniform optical spectroscopic surveys of X-ray selected sources to date that were observed as a pilot study for the Black Hole Mapper (BHM) survey. Th…
astro-ph.HE2025
Testing disc reprocessing models for AGN optical variability by comparison of X-ray and optical power spectra of NGC 4395
Max Beard, Ian McHardy, Keith Horne +11
It is generally thought that AGN optical variability is produced, at least in part, by reprocessing of central X-rays by a surrounding accretion disc, resulting in wavelength-depen…