VizieR Online Data Catalog: BL Lac morphologies with LoTSS-DR2 144MHz data (Mooney+, 2021)
Abstract
The Low Frequency Array (LOFAR) is conducting a high-angular-resolution, highly sensitive survey of the Northern Hemisphere sky at 144MHz (LoTSS; the LOFAR Two-Metre Sky Survey; Shimwell+ 2017, J/A+A/598/A104), with more than 21% of the sky observed to date.
We present LoTSS Second Data Release (LDR2; Shimwell+, 2022, J/A+A/659/A1) data for a sample of BL Lac objects from the blazar catalog Roma-BZCAT (BZBs; Massaro+ 2015, VII/274) and measure the spatial extents, core dominances, and spectral indices to characterize the diffuse emission. A ΛCDM cosmological model is used in this paper with h=0.70, {Ometa}m=0.26, and {Ometa}Λ=0.74, where H0=100h.km/s.Mpc-1 is the Hubble constant. (1 data file).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- February 2022
- DOI:
- 10.26093/cds/vizier.22570030
- Bibcode:
- 2022yCat..22570030M
- Keywords:
-
- BL Lac objects;
- Radio sources;
- Morphology;
- Redshifts;
- Surveys;
- Gamma rays