6533b833fe1ef96bd129c3b1

RESEARCH PRODUCT

Absolute kinematics of radio source components in the complete S5 polar cap sample I. First and second epoch maps at 8.4 GHz

J. C. GuiradoMiguel A. Pérez-torresEduardo RosJ. M. Marcaide

subject

PhysicsInterferometricEpoch (reference date)Astrophysics (astro-ph)AstronomyFOS: Physical sciencesAstronomy and AstrophysicsKinematicsAstrophysicsAstrometryAstrometryUNESCO::ASTRONOMÍA Y ASTROFÍSICAAstrophysicsSample (graphics):ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia [UNESCO]Astrometry ; Interferometric ; Quasars ; BL Lacertae objectsSpace and Planetary ScienceBL Lacertae objectsUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogoniaPolar capQuasarsVery Long Baseline Array:ASTRONOMÍA Y ASTROFÍSICA [UNESCO]Group delay and phase delay

description

We observed the thirteen extragalactic radio sources of the S5 polar cap sample at 8.4 GHz with the Very Long Baseline Array, on 1997.93 and 1999.41. We present the maps from those two epochs and briefly discuss the morphological changes experimented by some of the radio sources in the 1.4 yr elapsed. These results correspond to the first two epochs at 8.4 GHz of a program directed to study the absolute kinematics of the radio source components of the members of the sample by means of phase delay astrometry at 8.4, 15 and 43 GHz.

yearjournalcountryeditionlanguage
2001-01-01
https://dx.doi.org/10.48550/arxiv.astro-ph/0107155