activity
20222026
most citedConfirming new changing--look AGNs discovered through optical variability using a random-forest based light curve classifier

41 citations · 220 across the 18 of their papers we have counts for

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Showing astro-ph.HEShow all

5 papers · 1 filter

astro-ph.HE2025★ 1 cited

Discovery of extreme Quasi-Periodic Eruptions in a newly accreting massive black hole

Lorena Hernández-García, 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.HE2023★ 14 cited

BASS-XL: X-ray variability properties of unobscured Active Galactic Nuclei

Alessia Tortosa, Claudio Ricci, Patricia Arévalo +15

We investigate the X-ray variability properties of Seyfert1 Galaxies belonging to the BAT AGN Spectroscopic Survey (BASS). The sample includes 151 unobscured (N c…

astro-ph.HE2023★ 10 cited

Multiwavelength monitoring of the nucleus in PBC J2333.9-2343: the giant radio galaxy with a blazar-like core

L. Hernández-García, F. Panessa, G. Bruni +12

PBC J2333.9-2343 is a giant radio galaxy at z = 0.047 with a bright central core associated to a blazar nucleus. If the nuclear blazar jet is a new phase of the jet activity, then…

astro-ph.HE2022★ 22 cited

Constraining the X-ray reflection in low accretion rate AGN using XMM-Newton, NuSTAR and Swift

Y. Díaz, L. Hernández-García, P. Arévalo +8

An interesting feature in active galactic nuclei (AGN) accreting at low rate is the weakness of the reflection features in their X-ray spectra, which can result from the gradual di…

astro-ph.HE2022★ 22 cited

A multiwavelength-motivated X-ray model for the Circinus Galaxy

Carolina Andonie, Claudio Ricci, Stéphane Paltani +4

Reprocessed X-ray emission in Active Galactic Nuclei (AGN) can provide fundamental information about the circumnuclear environments of supermassive black holes. Recent mid-infrared…