Observation of He-like satellite lines of the H-like potassium K XIX emission

Observation of He-like satellite lines of the H-like potassium K XIX emission

We present measurements of the H-like potassium (K xix) X-ray spectrum and its He-like (K xviii) satellite lines, which are situated in the wavelength region between 3.34 and 3.39 Å, which has been of interest for the detection of dark matter. The measurements were taken with a high-resolution X-ray...

詳細記述

書誌詳細
主要な著者: Weller, ME, Beiersdorfer, P, Lockard, TE, Brown, GV, McKelvey, A, Nilsen, J, Shepherd, R, Soukhanovskii, VA, Hill, MP, Hobbs, LMR, Burridge, D, Hoarty, DJ, Morton, J, Wilson, L, Rose, SJ, Hatfield, P
フォーマット: Journal article
出版事項: American Astronomical Society 2019
その他の書誌記述
要約:We present measurements of the H-like potassium (K xix) X-ray spectrum and its He-like (K xviii) satellite lines, which are situated in the wavelength region between 3.34 and 3.39 Å, which has been of interest for the detection of dark matter. The measurements were taken with a high-resolution X-ray spectrometer from targets irradiated by a long-pulse (2 ns) beam from the Orion laser facility. We obtain experimental wavelength values of dielectronic recombination satellite lines and show that the ratio of the Lyα lines and their dielectronic satellite lines can be used to estimate the electron temperature, which in our case was about 1.5 ± 0.3 keV.

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