TL;DR
This paper presents a catalog of 109 compact extragalactic radio sources and water masers in the Galactic plane, providing precise positions, flux densities, and velocities from a 22 GHz VLBI survey, enhancing the understanding of Galactic and extragalactic radio sources.
Contribution
It introduces a new catalog of radio sources and masers in the Galactic plane with high-precision positions and flux measurements from a dedicated VLBI experiment.
Findings
Catalog includes 109 sources with median position uncertainty of 9 mas.
Detected 9 water masers, 2 of which are new discoveries.
Provided velocities and flux densities for maser components.
Abstract
I present a catalogue of positions and correlated flux densities of 109 compact extragalactic radio sources in the Galactic plane determined from analysis of a 48 hour VLBI experiment at 22 GHz with the European VLBI Network. The median position uncertainty is 9 mas. The correlated flux densities of detected sources are in the range of 20 to 300 mJy. In addition to target sources, nine water masers have been detected, two of them new. I derived position of masers with accuracies 30 to 200 mas and determined velocities of maser components and their correlated flux densities. The catalogue and supporting material is available at http://astrogeo.org/egaps.
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