Evolution and Plasma Diagnostics of the X-region connecting a set of Trans-Equatorial Loops

Using imaging observations from AIA and spectroscopic observations from EIS, we have performed a comprehensive study of the evolution of a set of Trans-Equatorial Loops between 11-14 December, 2014. We have also conducted a complete diagnostics of the plasma at the X-point connecting these loops. We have supplemented our observations with magnetic extrapolations using NLFFF technique based on AIA 171 and 193 ̊A channel images. The loops repeatedly form a X-point on 12 December with very slow inflows and outflows. The X-point is brighter in spectral lines formed till log T =6.20 whereas at higher temperatures, there are voids formed. The electron density is maintained at a steady value of 10^8.5 to 10^9.5 cm^−3 in the X-region suggesting a steady mass flux. The temperature of the region is also maintained at steadily around 1.6 MK at all instants. The Doppler velocities, taking into account the projection effects, compliments the inflows and outflows very well. The FWHM maps reveal enhanced non-thermal velocities at higher temperatures. The extrapolated magnetic field strengths are around 5-8 G at the X-region at a height of about 108 Mm. These loops show a classic example of a slowly varying quasi-steady reconnection which might contribute to coronal heating but no significant eruptive event.