Far-ultraviolet Observations of the North Ecliptic Pole with SPEAR
arXiv:astro-ph/0601583 · doi:10.1086/505195
Abstract
We present SPEAR/FIMS far-ultraviolet observations near the North Ecliptic Pole. This area, at b~30 degrees and with intermediate HI column, seems to be a fairly typical line of sight that is representative of general processes in the diffuse ISM. We detect a surprising number of emission lines of many elements at various ionization states representing gas phases from the warm neutral medium (WNM) to the hot ionized medium (HIM). We also detect fluorescence bands of H2, which may be due to the ubiquitous diffuse H2 previously observed in absorption.
5 pages, 3 figures, Accepted for publication in ApJ Letters
References in corpus (7)
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- The SPEAR Instrument and On-Orbit Performance
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