On the Redshift of TeV BL Lac Objects

We report results of a spectroscopic campaign carried out at the 10 m Gran Telescopio Canarias for a sample of 22 BL Lac objects detected (or candidates) at TeV energies, aiming to determine or constrain their redshift. This is of fundamental importance for the interpretation of their emission model...

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Veröffentlicht in:	The Astrophysical journal 2017-03, Vol.837 (2), p.144
Hauptverfasser:	Paiano, Simona, Landoni, Marco, Falomo, Renato, Treves, Aldo, Scarpa, Riccardo, Righi, Chiara
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORPTION Astrophysics ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Background noise BL LACERTAE OBJECTS BL Lacertae objects: general EMISSION Emission analysis GALAXIES galaxies: distances and redshifts GAMMA RADIATION gamma rays: galaxies INTERACTIONS Object recognition Optical communication PHOTONS Population studies QUASARS quasars: absorption lines quasars: emission lines RED SHIFT SIGNAL-TO-NOISE RATIO SPECTRA Spectroscopy TEV RANGE VISIBLE RADIATION
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