Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· References in the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Interstellar Depletion of Silicon and Iron Probed by Infrared Spectroscopy
Authors:
Okada, Yoko
Publication:
The Astronomical Herald (ISSN 0374-2466), Vol. 100, No. 3, p. 124 - 129 (2007)
Publication Date:
03/2007
Origin:
ARI
Title Language:
Japanese and English
Abstract Language:
Japanese and English
Paper Language:
Japanese
ARI Keywords:
Chemical Composition, Interstellar Dust
Bibliographic Code:
2007AstHe.100..124O

Abstract

A study on chemical compositions of interstellar dusts probed by observations of emission lines of silicon and iron ions with two infrared astronomical satellites, the Infrared Space Observatory and the Spitzer Space Telescope is presented. It is found that the abundance of gas-phase silicon in the observed Galactic star-forming regions is much larger than that in the cool interstellar medium. This fact indicates the observational evidence of Si-bearing dust destruction. On the other hand, the abundance of the gas-phase iron does not exceed that in the cool interstellar medium as silicon does. The chemical compositions of the dust on the basis of these results is discussed.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints