  Recent observations have revealed interstellar features that apparently
connect energetic activity in the central region of our Galaxy to its halo. The
nature of these features, however, remains largely uncertain. We present a
Chandra mapping of the central 2x4 square degree field of the Galaxy, revealing
a complex of X-ray-emitting threads plus plume-like structures emerging from
the Galactic center (GC). This mapping shows that the northern plume or
fountain is offset from a well-known radio lobe (or the GCL), which however may
represent a foreground HII region, and that the southern plume is well wrapped
by a corresponding radio lobe recently discovered by MeerKAT. In particular, we
find that a distinct X-ray thread, G0.17-0.41, is embedded well within a
nonthermal radio filament, which is locally inflated. This thread with a width
of ~1.6" (FWHM) is ~6 pc long at the distance of the GC and has a spectrum that
can be characterized by a power law or an optically-thin thermal plasma with
temperature ~3 keV. The X-ray-emitting material is likely confined within a
strand of magnetic field with its strength > 1 mG, not unusual in such radio
filaments. These morphological and spectral properties of the radio/X-ray
association suggest that magnetic field re-connection is the energy source.
Such re-connection events are probably common when flux tubes of antiparallel
magnetic fields collide and/or become twisted in and around the diffuse X-ray
plumes, representing blowout superbubbles driven by young massive stellar
clusters in the GC. The understanding of the process, theoretically predicted
in analog to solar flares, can have strong implications for the study of
interstellar hot plasma heating, cosmic-ray acceleration and turbulence.
