University of Illinois Urbana-Champaign

An interferometric study of molecular emission around ngc 7538 at millimeter wavelengths

Pratap, Preethi

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Pratap, Preethi.pdf

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https://hdl.handle.net/2142/79025

Description

Title
An interferometric study of molecular emission around ngc 7538 at millimeter wavelengths
Author(s)
Pratap, Preethi
Issue Date
1990-04
Director of Research (if dissertation) or Advisor (if thesis)
Snyder, Lewis E.
Department of Study
Astronomy
Discipline
Astronomy
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D. (doctoral)
Degree Level
Dissertation
Date of Ingest
2015-08-08T17:32:47Z
Keyword(s)
  • Maser action
  • Star formation
  • Interstellar medium
  • Millimeter interferometry
Language
en
Abstract
A basic premise of this thesis is to use the techniques of millimeter interferometry to probe the high density regions around newly formed stars. The technique is invaluable since the spatial resolution of an interferometer allows the study of small scale density enhancements in the molecular cloud that could provide the conditions for maser excitation. In addition to the detailed density structure, the millimeter continuum observations provide a tool for modeling the H II region and for calculating parameter~ such as electron density, electron temperature, and emission measure, which are useful in determining the excitation mechanism for the maser emission.
Type of Resource
text
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http://hdl.handle.net/2142/79025

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