Publication Date:
2003-06-07
Description:
In laboratory experiments using the engineering spare microcalorimeter detector from the ASTRO-E satellite mission, we recorded the x-ray emission of highly charged ions of carbon, nitrogen, and oxygen, which simulates charge exchange reactions between heavy ions in the solar wind and neutral gases in cometary comae. The spectra are complex and do not readily match predictions. We developed a charge exchange emission model that successfully reproduces the soft x-ray spectrum of comet Linear C/1999 S4, observed with the Chandra X-ray Observatory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beiersdorfer, P -- Boyce, K R -- Brown, G V -- Chen, H -- Kahn, S M -- Kelley, R L -- May, M -- Olson, R E -- Porter, F S -- Stahle, C K -- Tillotson, W A -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1558-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lawrence Livermore National Laboratory, 7000 East Avenue, L-260, Livermore, CA 94550, USA. beiersdorfer@llnl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12791989" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics