Letter to the Editor

Flare lines in Hinode EIS spectra

University College London, MSSL Holmbury St. Mary Dorking RH5 6NT, UK DAMTP, Centre for Mathematical Sciences, Wilberforce road Cambridge CB3 0WA, UK e-mail: GDelZanna@spd.aas.org

Received: 8 November 2007
Accepted: 31 December 2007

Abstract

We aim to identify the brightest hot emission lines in Hinode EIS spectra, and suggest the best ones to be used in flare observations.
The EIS database was searched in order to find suitable datasets to identify the prominent lines. A B2-class flare spectrum was found. Most previous identifications are confirmed, however some are revised by noting the presence of blending. A new self-blend is identified. A recommended list of emission lines formed at high temperatures is provided. The brightest lines are the 192.85 Å and the 192 Å, however they are blended. The best unblended lines are the 200.99 Å, 269.42 Å and 263.76 Å lines.