VLBI position variability of AGNs is inversely correlated with their photometric variability

• Published in: Astronomy and astrophysics (Berlin) Vol. 684; p. A93
• Main Authors: Lambert, S., Secrest, N. J.
• Format: Journal Article
• Language: English
• Published: Heidelberg EDP Sciences 01.04.2024
• Subjects: Astrophysics; BL Lacertae objects; Blazars; Color; Correlation; Cyclotron frequency; Ion cyclotron radiation; Offsets; Photometry; Physics; Position errors; Quasars; Radio sources (astronomy); Red shift; Seyfert galaxies; Spectral classification; Stability; Variability; Very long base interferometry; quasars: general; catalogs; techniques: interferometric; reference systems

Aims. The stability of the International Celestial Reference Frame (ICRF), realized through geodetic very long baseline interferometry (VLBI) positions of thousands of extragalactic objects, is dependent on the individual positional stability of these objects. It has been recently shown that the pre...