Spectroscopic and imaging confirmation of the brightest known quadruply-lensed quasar J1330-0905 at z=2.22 with Einstein radius ~0.45 arcsec and predicted magnification ~56.
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C., Bechtold, J., & Siemiginowska, A
10 Pith papers cite this work, alongside 752 external citations. Polarity classification is still indexing.
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JWST observations of ERQs show stratified gas kinematics via deblended optical emission lines, with UV lines dominated by scattered light and optical lines mixing scattered and obscured emission.
Low-luminosity AGN exhibit optical variability structure function slopes that increase with black hole mass from ~0.1 to ~0.3, with amplitude anticorrelated with luminosity, no breaks observed, and variability continuing to rise on 20-year timescales.
A criterion of |Δg| > 0.4 mag and |Δ(g-r)| > 0.2 mag detects photometric CL-AGN transitions in 9.6% of known hosts with 1.6% false positive rate from simulations.
A modular framework combining physics-informed neural networks, Ornstein-Uhlenbeck fitting, extreme value theory, and vision-language models detects 51 transient flares in 9,258 SDSS Stripe 82 quasar light curves.
Mass-scaled DRW damping timescales in AGNs follow a linear relation with black hole mass (slope 0.35-0.50) for both jetted and non-jetted sources, supporting universal accretion physics.
Systematic search of ZTF DR23 data yields catalogs of 28,504 coarse and 1,984 refined AGN flares with public release.
The P3 selector achieves 0.9809 purity and 0.8869 completeness for QSO candidates in selected fields, outperforming Gaia's official probabilities.
A convLSTM classifier identifies lensed SNe Ia in simulated LSST-like time series, reaching ~60% true-positive rate at O(10^{-4}) false-positive rate by the seventh epoch even after adding realistic PSF variations and foreground SN contaminants.
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Persephone's Torch: A 15th Magnitude Quadruply-Lensed Quasar From the Couch Discovered with SPHEREx and the LBT
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The Intermediate-Mass Black Hole Reverberation Mapping Project: Stable Optical Continuum Lags of an IMBH in the Dwarf Galaxy NGC 4395 Over Years
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Kinematic Stratification in Extremely Red Quasars Revealed by JWST
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Optical Variability Structure Function of Low-Luminosity AGN using ATLAS Lightcurves
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A criterion of |Δg| > 0.4 mag and |Δ(g-r)| > 0.2 mag detects photometric CL-AGN transitions in 9.6% of known hosts with 1.6% false positive rate from simulations.
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A Statistical-AI Framework for Detecting Transient Flares in SDSS Stripe 82 Quasar Light Curves
A modular framework combining physics-informed neural networks, Ornstein-Uhlenbeck fitting, extreme value theory, and vision-language models detects 51 transient flares in 9,258 SDSS Stripe 82 quasar light curves.
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A universal relationship between the variability timescale and black hole mass in black hole jetted and non-jetted accreting systems
Mass-scaled DRW damping timescales in AGNs follow a linear relation with black hole mass (slope 0.35-0.50) for both jetted and non-jetted sources, supporting universal accretion physics.
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