SIMBAD references

2024RNAAS...8..308K - Research Notes of the AAS, 8, 308 (2024/December-0)

The γ-Ray-emitting BL Lac 4FGL J1219.0+3653 in the Radio.

KREZINGER M., GABANYI K.E. and FREY S.

Abstract (from CDS):

We collect radio data of 4FGL J1219.0+3653, the first γ-ray BL Lac candidate known above redshift 3. We analyze total flux density measurements covering a wide frequency range (0.33-5 GHz) as well as the only available very long baseline interferometry (VLBI) data. The radio spectrum is flat. Based on the radio data, there is no evidence that the compact jet emission is Doppler-enhanced, at odds with the BL Lac classification. The Gaia-VLBI optical-radio positional offset is ∼9 mas which appears larger than usual in a blazar-like source but is still within 3σ uncertainties.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Extragalactic radio sources - Active galactic nuclei - BL Lacertae objects - Gamma-ray sources - Radio continuum emission - Very long baseline interferometry

Simbad objects: 1

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2024RNAAS...8..308K and select 'bookmark this link' or equivalent in the popup menu