activity
20122026
most citedProperties of flat-spectrum radio-loud Narrow-Line Seyfert 1 Galaxies

164 citations · 739 across the 34 of their papers we have counts for

collaborators

37 papers

astro-ph.GA2026

EMU detection of mysterious multiple component radio-continuum emission from nearby spiral Seyfert I type galaxy 'Sand-timer' (NGC 7213)

M. D. Filipović, Z. J. Smeaton, B. S. Koribalski +24

We present an Australian Square Kilometre Array Pathfinder (ASKAP) Evolutionary Map of the Universe (EMU) radio-continuum detection of the nearby spiral Seyfert I type galaxy NGC 7…

astro-ph.GA2026

NOCTURNE. II. Extreme radio variability in the heart of early-stage active galactic nuclei

Emilia Järvelä, Patrizia Romano, Anne Lähteenmäki +1

We report the discovery of extreme 37 GHz radio variability in early-stage active galactic nuclei (AGN). Most of these sources belong to the class of narrow-line Seyfert 1 (NLS1) g…

astro-ph.GA2026

Super-Eddington Accretion and Early-Stage Feedback in Ton S180

Pierpaolo Condò, Giacomo Venturi, Eleonora Parlanti +15

Narrow-line Seyfert 1 (NLSy1) galaxies are key laboratories for studying rapid supermassive black hole (SMBH) growth and active galactic nucleus (AGN) feedback at high accretion ra…

astro-ph.HE2026

Polarization Angle Swings in Blazars Detected in the Millimeter-wave with the South Pole Telescope

A. Simpson, E. Anderes, A. J. Anderson +93

We present the first systematic search for electric vector position angle (EVPA) swings in the millimeter-wave (mm-wave) emission of blazars, using five years of observations from…

astro-ph.HE2026

An X-ray and optical spectral study of the changing-look narrow-line Seyfert 1 2MASX J0413-0050

A. Vietri, A. Tortosa, D. Ilić +12

Active galactic nuclei (AGN) showing dramatic spectral and flux variations, either due to changes in the accretion rate (changing-state, CS-AGN) of the supermassive black hole or i…

astro-ph.GA2026

Very Long Baseline Interferometry Search for Nuclear Radio Continuum Emission in the Barred Spiral Galaxy NGC 7479

Seppo Laine, Emmanuel Momjian, Emilia Järvelä +4

We have obtained very high angular resolution (a few milliarcseconds or sub-parsec scale) Very Long Baseline Array (VLBA) and European Very Long Baseline Interferometry (VLBI) Netw…