Optical Spectra of Candidate International Celestial Reference Frame (ICRF) Flat-Spectrum Radio Sources. III
arXiv:1702.06644 · doi:10.3847/1538-3881/aa61fd
Abstract
In extending our spectroscopic program, which targets sources drawn from the International Celestial Reference Frame (ICRF) Catalog, we have obtained spectra for about 160 compact flat-spectrum radio sources and determined redshifts for 112 quasars and radio galaxies. A further 14 sources with featureless spectra have been classified as BL Lac objects. Spectra were obtained at three telescopes: the 3.58-m ESO New Technology Telescope (NTT), and the two 8.2-m Gemini telescopes in Hawaii and Chile. While most of the sources are powerful quasars, a significant fraction of radio galaxies is also included from the list of non-defining ICRF radio sources.
arXiv commentAccepted for publication in AJ
References in corpus (16)
- The Sloan Digital Sky Survey: Technical Summary
- GAIA: Composition, Formation and Evolution of the Galaxy
- Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes
- The FIRST Bright Quasar Survey. II. 60 Nights and 1200 Spectra Later
- Astrometry and geodesy with radio interferometry: experiments, models, results
- Science With The Australian Square Kilometre Array Pathfinder
- Mg II Absorption Systems in SDSS QSO Spectra
- The SuperCOSMOS Sky Survey. Paper III: Astrometry
- VLBI measurement of the secular aberration drift
- Quasar Proper Motions and Low-Frequency Gravitational Waves
- Discovery of HI gas in a young radio galaxy at using the Australian Square Kilometre Array Pathfinder
- On the VLBI measurement of the Solar System acceleration
- Effect of asymmetry of the radio source distribution on the apparent proper motion kinematic analysis
- Optical Spectra of Candidate Southern Hemisphere International Celestial Reference Frame (ICRF) radio sources
- Quasars can be used to verify the parallax zero-point of the Tycho-Gaia Astrometric Solution
- The Spectrum of the FeLoBAL Quasar FBQS 1214+2803: A Resonance-Scattering Interpretation