activity
19972026
most citedLarge-Amplitude X-ray Outbursts from Galactic Nuclei: A Systematic Survey Using ROSAT Archival Data

246 citations · 1.3k across the 51 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

5 papers · 1 filter

astro-ph.HE2026

Investigating the Multiwavelength Emission of Binary SMBH Candidate SDSS J095036.75+512838.1

Cassandra Daniele, Adi Foord, Jessie Runnoe +2

We present results from a multiwavelength study of the binary AGN candidate SDSS J095036.75+512838.1, which was identified as a candidate binary SMBH system due to its significant…

astro-ph.HE2026

Spectroscopic Variability of the Broad H Emission Line in Sloan Digital Sky Survey Quasars

Collin M. Dabbieri, Jessie C. Runnoe, Michael Eracleous +3

We present a catalog of broad H variability properties for all spectra of quasars with and at least two observations included in the Sloan Digital Sky Survey (SDSS) Data…

astro-ph.HE2025

Using Faded Changing-Look Quasars to Unveil the Spectral Energy Distribution Evolution of Low-Luminosity Active Galactic Nuclei

Olivier Gilbert, John J. Ruan, Laura Duffy +7

The structure of accretion flows in low-luminosity active galactic nuclei (AGN) at low Eddington ratios (~10^-2 to 10^-3) are poorly-understood, and can be probed using the spectra…

astro-ph.HE2024★ 2 cited

A Host Galaxy Morphology Link Between Quasi-Periodic Eruptions and Tidal Disruption Events

Olivier Gilbert, John J. Ruan, Michael Eracleous +2

The physical processes that produce X-ray Quasi-Periodic Eruptions (QPEs) recently discovered from the nuclei of several low-redshift galaxies are mysterious. Several pieces of obs…

astro-ph.HE2010★ 104 cited

A Tidal Disruption Flare in Abell 1689 from an Archival X-ray Survey of Galaxy Clusters

Peter Maksym, Melville P. Ulmer, Michael Eracleous

Theory suggests that a star making a close passage by a supermassive black hole at the center of a galaxy can under most circumstances be expected to emit a giant flare of radiatio…