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

Pratap, Preethi

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

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

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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