Rakshit, S; Stalin, C. S; Chand, H; Zhang, X
(Bulletin de la Societe Royale des Sciences de Liege, 2018-04)
Narrow line Seyfert 1 (NLSy1) galaxies constitute a class of active galactic nuclei characterized by the full width at half maximum (FWHM) of the Hα broad emission line <2000 km s-1 and the flux ratio of [O III] to Hα ...