  Hub-filament systems (HFSs) are potential sites of formation of star clusters
and high mass stars. To understand the HFSs and to provide observational
constraints on current theories that attempt to explainstar formation globally,
we report a study of the region associated with G326.27-0.49 using infrared
data of dust continuum and newly obtained observations on molecular tracers
using the APEX telescope. We use the spectroscopic observations to identify
velocity-coherent structures (filaments and clumps) and study their properties
at a resolution of 0.4 pc. The region contains two main velocity components:
first component shows four filaments between -63 and -55 km/s forming a spiral
structure converging in a hub, the second filamentary component at -72 km/s
harbors a massive young stellar object and possibly interacts with the hub. The
clumps harbouring the three main YSOs in the region are massive (187-535 Msun),
have luminosities consistent with B-type stars, have central densities of ~10^6
cm^-3 and drive large outflows. Majority of the velocity-coherent clumps in the
region show virial parameters between 2-7, which considering the detection of
protostars implies collapse to be gradual. We conclude that the region consists
of a network of filaments through which mass accretes (~10^-4 Msun/yr) onto the
hub. The hub and some of the ends of filaments appear to be undergoing collapse
to form new stars. This study identifies a target region for future high
resolution observations that could probe the link between the core and filament
evolution.
