On the redshift of the gamma-ray blazar PKS 0447-439: Optical spectroscopy using Gemini observations with high S/N ratio

Abstract: The BL-Lac blazar PKS 0447-439 was detected at very high energy gamma-rays by HESS following the discovery by Fermi-LAT. The lack of both emission and absorption lines in BL-Lacs make the estimation of their redshifts very difficult. Modeling the drop in gamma-ray spectra it was possib...

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Bibliographic Details
Main Authors: Rovero, A.C., Donzelli, Carlos, Muriel, Hernán, Cilis, A., Pichel, A.C.
Format: conferenceObject
Language:eng
Published: Centro Brasileiro de Pesquisas Físicas (CBPF) 2021
Subjects:
Online Access:http://hdl.handle.net/11086/18971