EG125
EG125 for correlation (pattern for large, plut other sta)
The dominant fraction, 98% of the extragalactic gamma-ray sources are blazars. Among the remaining 2%, there are 9 narrow-line Seyfert 1 galaxies (NLS1) and roughly 50 radio galaxies. The identification of gamma-ray sources detected by the Fermi satellite requires multi-wavelength follow-up observations since within the relatively large localisation region several candidate objects could reside. We want to use the EVN to find the most probable counterpart of the gamma-ray source 4FGL 0959.6+4606. Its association with a weak radio emitter galaxy was questioned recently since the position of an NLS1 is also compatible with the gamma-emission localisation region. The 5-GHz EVN observation proposed here can reveal the relativistically boosted jet emission in the NLS1 source thus confirming it to be the most likely counterpart of the gamma-ray source.
Observation pages at the EVN archive:
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