Parsec-scale Structure and Kinematics of Faint TeV HBLs

Autor:	Piner, B. Glenn, Edwards, Philip G.
Rok vydání:	2016
Předmět:	Astrophysics - Astrophysics of Galaxies Astrophysics - High Energy Astrophysical Phenomena
Zdroj:	Galaxies, vol. 4, issue 4, p. 44 (2016)
Druh dokumentu:	Working Paper
DOI:	10.3390/galaxies4040044
Popis:	We present new multi-epoch Very Long Baseline Array (VLBA) observations of a set of TeV blazars drawn from our VLBA program to monitor all TeV-detected high-frequency peaked BL Lac objects (HBLs) at parsec scales. Most of these sources are faint in the radio, so they have not been well observed with VLBI by other surveys. Our previous measurements of apparent jet speeds in TeV HBLs showed apparent jet speeds that were subluminal or barely superluminal, suggesting jets with velocity structures at the parsec-scale. Here we present apparent jet speed measurements for eight new TeV HBLs, which for the first time show a superluminal tail to the apparent speed distribution for the TeV HBLs. Comment: 7 pages, proceedings contribution for Blazars through Sharp Multi-Wavelength Eyes
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1612.05706 Zobrazit plný text záznamu View this record from Arxiv