University of Illinois Urbana-Champaign

Methanol at the edge of the galaxy: new observations to constrain the galactic habitable zone

Bernal, Jacob

Content Files
4588.pdf

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https://hdl.handle.net/2142/107507

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
2020-06-23
Keyword(s)
Astronomy
Date of Ingest
2020-06-26T03:04:31Z
Abstract
Searches have been conducted for the J=2-1 transitions of methanol at 3mm in a sample of molecular clouds located 13-23.5 kpc from the Galactic Center, using the ARO 12m telescope. 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
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/107507
Copyright and License Information
Copyright 2020 is held by the Author(s)

Owning Collections

Abstracts & Presentations - 2020 International Symposium on Molecular Spectroscopy PRIMARY