| Name: | Veena VS |
| Affiliation: | Max Planck Institute for Radio Astronomy |
| Conference ID : | ASI2024_905 |
| Title : | A chemical Inventory of Molecular Gas in the Milky Way's Nuclear Chimney |
| Authors : | V. S. Veena
D. Riquelme
W. J. Kim
K. M. Menten
P. Schilke
M. C. Sormani
W. E. Banda-Barragan
F. Wyrowski
G. A. Fuller
P. Garcia
R. Guesten
D. Colombo
A. Cheema |
| Authors Affiliation: | Max Planck Institute for Radio astronomy, Germany
University of Cologne, Germany
University of La Serena, Chile
University of Heidelberg, Germany
University Yachay Tech, Ecuador
University of Manchester, UK
Catholic University of the North, Chile
University of Bonn, Germany |
| Mode of Presentation: | Oral |
| Abstract Category : | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract : | The Galactic Centre (GC) is the most extreme environment in the Milky Way hosting high energy feedback processes and containing the central molecular zone (CMZ), the largest reservoir of molecular gas in the Galaxy. Due to its proximity, the GC is the best template to investigate gas dynamics and star formation in galactic nuclei to sub-pc scales. Recent studies reveal the existence of a multi-phase nuclear chimney extending hundreds of parsecs, which represent the channel connecting the quasi-continuous, intermittent activity at the GC. In order to understand the kinematics and chemistry of the cold molecular gas associated with this nuclear chimney we carried out a multiwavelength spectral line study of the chimney. Our studies reveal a funnel-shaped molecular structure in 13CO emission extending over a degree above the GC. This feature correlates well with the northern lobe of the 430 pc radio bubble, believed to be the radio counterpart of
the multiwavelength GC chimney. Spectral line observations in the frequency range of 85–240 GHz reveal the rich chemistry of the cloud. The mean 12C/13C isotope ratio (30.6 ± 2.9) within the cloud is consistent with the structure located within or close to the GC. Our ongoing APEX survey of the molecular funnel also reveals molecular signatures of a large scale shock in the region, shedding light on the intricate processes and structures within this extreme galactic environment. |
