Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Emission-Line Intensity Ratios in FeXVII Observed with a Microcalorimeter on an Electron Beam Ion Trap

Published

Author(s)

J M. Laming, I Kink, E Takacs, James V. Porto, John D. Gillaspy, E Silver, H. Schnopper, Simon R. Bandler, N Brickhouse, S Murray, M Barbera, A K. Bhatia, G. A. Doschek, N. Madden, D Landis, J. Beeman, E. E. Haller

Abstract

We report new observations of emission line intensity ratios of Fe XVII under controlled experimental conditions, using the National Institute of Standards and Technology electron beam ion trap (EBIT) with a microcalorimeter detector. . . .Both R-matrix and distorted wave approxomations agree with each other and our experimental results much better than most solar and stellar observations, suggesting that other proceses not present in our experiment must play a role in forming the Fe XVII spectrum in solar and astrophysical plasmas.
Citation
Astrophysical Journal
Volume
545
Issue
No. 2

Keywords

atoms, electron beam ion trap, emission-line intensity ratios, intensity ratios, ions, microcalorimeter

Citation

Laming, J. , Kink, I. , Takacs, E. , Porto, J. , Gillaspy, J. , Silver, E. , Schnopper, H. , Bandler, S. , Brickhouse, N. , Murray, S. , Barbera, M. , Bhatia, A. , Doschek, G. , Madden, N. , Landis, D. , Beeman, J. and Haller, E. (2000), Emission-Line Intensity Ratios in FeXVII Observed with a Microcalorimeter on an Electron Beam Ion Trap, Astrophysical Journal (Accessed April 19, 2024)
Created November 30, 2000, Updated October 12, 2021