New Variable Radio Sources for the Low-Mass X-ray Binary GX 339-4
21 new long-term variables in the GX 339-4 field: two years of MeerKAT monitoring
We present 21 new long-term variable radio sources found commensally in two years of weekly monitoring of the low-mass x-ray binary gx 339-4. the new sources vary on time scales of weeks to months and have a variety of lightcurve shapes and spectral index properties.
These new variable sources represent per cent of the unresolved sources in the field, which is consistent with the 1-2per cent variability found in past radio variability surveys.
Three of the new variable sources are coincident with multi-wavelength counterparts and one of these is coincident with an optical source in deep images.
L. N. Driessen, B. W. Stappers, E. Tremou, R. P. Fender, P. A. Woudt, R. Armstrong, S. Bloemen, P. Groot, I. Heywood, A. Horesh, A. J. van der Horst, E. Koerding, V. A. McBride, J. C. A. Miller-Jones, K. P. Mooley, A. Rowlinson, R. A. M. J. Wijers