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astro-ph.HE2025
Discovery of extreme Quasi-Periodic Eruptions in a newly accreting massive black hole
Lorena Hernández-GarcÃa, Joheen Chakraborty, Paula Sánchez-Sáez +27
Quasi-periodic eruptions (QPEs) are rapid, recurring X-ray bursts from supermassive black holes, believed to result from interactions between accretion disks and surrounding matter…
astro-ph.GA2025
NGC 3259: A Signal for an Untapped Population of Slowly Accreting Intermediate-Mass Black Holes
Kirill A. Grishin, Igor V. Chilingarian, Francoise Combes +4
Low-mass active galactic nuclei (AGNs) can provide important constraints on the formation and evolution of supermassive black holes (SMBHs), a central challenge in modern cosmology…