Methanol At The Edge Of The Galaxy: New Observations To Constrain The Galactic Habitable Zone

Bernal, Jacob

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https://hdl.handle.net/2142/111040 Copy

Description

Title

Methanol At The Edge Of The Galaxy: New Observations To Constrain The Galactic Habitable Zone

Author(s)

Bernal, Jacob

Contributor(s)

• Sephus, Cathryn
• Ziurys, Lucy M.

Issue Date

2021-06-22

Keyword(s)

Astronomy

Abstract

Searches have been conducted for various J=2-1 transitions of methanol at 3 mm in a sample of molecular clouds located 13-23.5 kpc from the Galactic Center, using the 12m telescope of the Arizona Radio Observatory (ARO). The sources are in the Cygnus arms, and typically are cold with T$_{K}$ approximately 20 K. Multiple transitions of this organic molecule were detected in 19 clouds, including ones at distances of approximately 23.5 kpc. Typical abundances found for methanol are 1x10$^{9}$. The results suggest that the Galactic Habitable Zone (GHZ) may exist much further from the Galactic Center than previously thought.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111040

DOI

10.15278/isms.2021.TJ09

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