activity
20192026
most citedSDSS1335+0728: The awakening of a black hole

19 citations · 50 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2026

Spatially resolved optical and mid-infrared spectroscopy of SDSS1335+0728: implications for the origin of the Ansky event

P. Sánchez-Sáez, M. Masterson, L. Hernández-García +25

The galaxy SDSS1335+0728 brightened abruptly in December 2019 (the Ansky event) and has since been confirmed as the host of extreme X-ray quasi-periodic eruptions (QPEs) of debated…

astro-ph.HE2026

Evidence for a Delayed UV Counterpart to X-ray Quasi-periodic Eruptions in Ansky

Hengxiao Guo, Zhen Yan, Ya-Ping Li +15

X-ray quasi-periodic eruptions (QPEs) represent a novel population of extreme, repeating nuclear transients whose physical origins remain debated. A defining characteristic of QPEs…

astro-ph.HE2026

A positive period derivative in the quasi-periodic eruptions of ZTF19acnskyy

Joheen Chakraborty, Saul A. Rappaport, Riccardo Arcodia +9

We report the first direct measurement of the period derivative in a quasi-periodic eruption (QPE), finding a smoothly increasing period with $\dot{P}\approx (1.7\pm 0.02)\times10^…

astro-ph.HE2025

NICER observations reveal doubled timescales in Ansky's quasi-periodic eruptions (QPEs)

L. Hernández-García, P. Sánchez-Sáez, J. Chakraborty +11

Quasi-periodic eruptions (QPEs) are recurring X-ray bursts originating from the vicinity of supermassive black holes, but their driving mechanisms remain under debate. This study a…

astro-ph.IM2025

ALeRCE light curve classifier: Tidal disruption event expansion pack

M. Pavez-Herrera, P. Sánchez-Sáez, L. Hernández-García +9

ALeRCE (Automatic Learning for the Rapid Classification of Events) processes the Zwicky Transient Facility (ZTF) alert stream in preparation for the Vera C. Rubin Observatory, clas…

astro-ph.HE2025

The GRACE project: Hard X-ray giant radio galaxies and their duty cycle

G. Bruni, F. Panessa, L. Bassani +14

The advent of new generation radio telescopes is opening new possibilities on the classification and study of extragalactic high-energy sources, specially the underrepresented ones…