activity
20082025
most citedSpectral Optical Monitoring of the Narrow Line Seyfert 1 galaxy Ark 564

100 citations · 677 across the 52 of their papers we have counts for

collaborators

53 papers

astro-ph.GA2025

The evolution of obscured AGN across cosmic time -- A large quasar survey for the 2040s

Tanya Urrutia, Darshan Kakkad, Paula Sánchez-Sáez +21

We propose a large quasar demographic optical multi-object spectroscopic (MOS) survey targeting over 50 million AGN candidates up to the highest redshifts possible in the optical (…

astro-ph.EP2025★ 3 cited

What if we find nothing? Bayesian analysis of the statistical information of null results in future exoplanet habitability and biosignature surveys

Daniel Angerhausen, Amedeo Balbi, Andjelka B. Kovačević +2

Future telescopes will survey temperate, terrestrial exoplanets to estimate the frequency of habitable () or inhabited () planets. This study aims…

astro-ph.GA2024

AGN STORM 2: X. The origin of the interband continuum delays in Mrk 817

Hagai Netzer, Michael R. Goad, Aaron J. Barth +26

The local (z=0.0315) AGN Mrk 817, was monitored over more than 500 days with space-borne and ground-based instruments as part of a large international campaign AGN STORM 2. Here, w…

astro-ph.GA2024

AGN STORM 2: VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations

Maryam Dehghanian, Nahum Arav, Gerard A. Kriss +39

We observed the Seyfert 1 galaxy Mrk817 during an intensive multi-wavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lin…

astro-ph.GA2024★ 7 cited

Optical Continuum Reverberation Mapping of a Candidate IMBH in a Nearby Seyfert 1 Galaxy

Wenwen Zuo, Hengxiao Guo, Jingbo Sun +25

To investigate the short-term variability and determine the size of the optical continuum emitting region of intermediate-mass black holes (IMBHs), we carried out high-cadence, mul…

astro-ph.IM2024

Two-Dimensional (2D) Hybrid Method: Expanding 2D Correlation Spectroscopy (2D-COS) for Time Series Analysis

Andjelka B. Kovacevic

We present a concise report on the '2DHybrid' method, an innovative extension of two-dimensional correlation spectroscopy (2D COS), tailored for quasar light curve analysis. Addres…