University of Illinois Urbana-Champaign

Multi-wavelength Investigation On New Molecular Masers Toward The Galactic Center

Xue, Ci

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RN07_1.pptx
6279.pdf

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https://hdl.handle.net/2142/116746

Description

Title
Multi-wavelength Investigation On New Molecular Masers Toward The Galactic Center
Author(s)
Xue, Ci
Contributor(s)
  • McGuire, Brett A.
  • Hunter, Todd R.
  • Remijan, Anthony
  • Momjian, Emmanuel
  • Faure, Alexandre
Issue Date
2022-06-23
Keyword(s)
Astronomy
Abstract
At the centimeter wavelength, the single-dish observation has suggested that the Sgr B2 molecular cloud at the Galatic center hosts weak maser emission from complex molecules, including CH$_2$NH, HNCNH, and HCOOCH$_3$ (McGuire et al., 2012; Faure et al., 2014, 2018). Because molecular masers often trace specific conditions within the massive star-forming regions, finding new maser transitions and species provides critical insights into the physical structures hidden behind the thick dust. However, the lack of distribution information of these new maser species had prevented us from not only quantitatively assessing the observed spectral profiles but also constraining their pumping mechanisms. In this talk, we present a rigorous mapping study toward the galactic center to resolve the region where the complex maser emission originates. By comparing the distribution of several maser emissions, it is revealed that the new maser species have a close spatial relationship with the CH$_3$OH Class I masers. This relationship serves as observational evidence to suggest a similar collisional pumping mechanism for these maser transitions.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/116746
DOI
https://doi.org/10.15278/isms.2022.RN07
Copyright and License Information
Copyright 2022 held by the authors

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Abstracts & Presentations - 2022 International Symposium on Molecular Spectroscopy PRIMARY