Disk-Halo interface: The "foot point" of the Galactic Molecular Loops

TL;DR

This study investigates the disk-halo interaction at the Galactic center by conducting a large-scale molecular line survey to understand gas accretion processes at the foot points of molecular loops.

Contribution

It provides new observational data on molecular gas at the foot points of Galactic Molecular Loops, highlighting the gas accretion from the halo to the disk.

Findings

Detection of molecular line emissions indicating gas inflow.

Evidence of accretion processes at the foot points of loops.

Insights into the dynamics of disk-halo interactions.

Abstract

We study the disk-halo interaction, in the context of orbits and Giant Molecular loops (GMLs) in the Galactic center (GC) region. We present a large scale survey in the central kpc in SiO(J=2-1), HCO$^+$(J=1-0) and H$^{13}$CO$^+$ (J=1-0), observations in 3mm lines toward a region in two clumps M+5.3-0.3 and M-3.8+0.9 placed in the foot point of two molecular loops, and observations toward selected positions, to trace accretion of the gas from the halo