Landing page for project EC089

Narrow-line Seyfert 1 galaxies (NLS1s) are a new type of gamma-ray emitting active galactic nuclei (AGN). However, gamma-ray emission found in NLS1s, in particular radio-quiet (RQ) sources, is still rare. We recently found an interesting RQ NLS1 1H 1934-063. The radio luminosity and morphology observed with the VLA C configuration are in agreement with star formation (SF) activity. A crucial feature is that gamma-ray and MIR flares are discovered in a location which matches the optical and radio coordinates. This raises a question of what is the potential source responsible for the gamma-ray emission? We therefore propose EVN + e-MERLIN observations for this target, with a total time of six hours in 6 cm and 18 cm bands. We aim to clarify the origin of the radio emission of 1H 1934-063, such as a compact radio core, a AGN jet or outflow, SF, as well as if there is background and nearby candidates, in order to investigate the potential source for the gamma-ray emission.

This 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