Landing page for project EC106

We propose an EVN observing campaign of the neutron star X-ray binary Cygnus X-2 to investigate the nature and evolution of its jet ejecta, which have only been spatially resolved once to date. A key aim is to search for evidence of ultra-relativistic energy flows, thereby providing insights into the prevalence of this phenomenon in neutron star X-ray binaries. In parallel, we will quantify the effects of scatter broadening at the frequency of our observations (1.7 GHz). Provided these effects are not prohibitive, we aim to undertake a follow-up EVN+MeerKAT study at this frequency, capitalising on the increased sensitivity, and characterising the magnetic fields of the source via polarimetry, using our established MeerKAT polarisation calibration procedures.

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