RSC08A
e-EVN: EZ041B, RSC08A
AR Lacertae is a bright RS CVn eclipsing binary and an important radio star for linking the Gaia bright-end optical reference frame to the ICRF. We identified J220755.72+451821.4, only 27 arcmin (0.46 deg) from AR Lac The candidate calibrator has remained at 20–40 mJy from 144 MHz to 3 GHz, is unresolved in VLA Sky Survey, and has an approximately flat spectrum (? ? 0.06), consistent with a compact core. We request one-hour pilot e-VLBI observations at 5 GHz and one-hour follow-up VLBI observations at 22 GHz. Successful detections would establish its suitability for future high-precision phase-referenced astrometry of AR Lac.
Part of the project RSC08 (https://doi.org/10.48717/1vh6-5733)
Data is available for download on the EVN archive here.
Context for this dataThis data is part of the archive of VLBI data maintained by JIVE on behalf of the EVN, a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa. The EVN archive itself has the DOI https://doi.org/10.17616/R3Z197