61 citations · 111 across the 4 of their papers we have counts for
3 papers · 1 filter
Absorbed relativistic jets in radio-quiet narrow-line Seyfert 1 galaxies
M. Berton, E. Järvelä, L. Crepaldi +6
Narrow-line Seyfert 1 (NLS1) galaxies are peculiar active galactic nuclei (AGN). Most of them do not show strong radio emission, but recently seven radio-quiet (or -silent) NLS1s h…
Line shapes in narrow-line Seyfert 1 galaxies: a tracer of physical properties?
M. Berton, I. Björklund, A. Lähteenmäki +4
Line profiles can provide fundamental information on the physics of active galactic nuclei (AGN). In the case of narrow-line Seyfert 1 galaxies (NLS1s) this is of particular import…
Compact steep-spectrum sources as the parent population of flat-spectrum radio-loud NLS1s
Marco Berton, Alessandro Caccianiga, Luigi Foschini +9
Narrow-line Seyfert 1 galaxies (NLS1s) are an interesting subclass of active galactic nuclei (AGN), which tipically does not exhibit any strong radio emission. Seven percent of the…