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Far-ultraviolet Observations of the North Ecliptic Pole with SPEAR

Eric J. Korpela·Jerry Edelstein·Julia Kregenow·Kaori Nishikida·Kyoung-Wook Min·Dae-Hee Lee·Kwangsun Ryu·Wonyong Han·Uk-Won Nam·Jang-Hyun Park
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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.

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Eric J. Korpela, Jerry Edelstein, Julia Kregenow, Kaori Nishikida, Kyoung-Wook Min, Dae-Hee Lee, Kwangsun Ryu, Wonyong Han, Uk-Won Nam, Jang-Hyun Park. 2006-01-26. Far-ultraviolet Observations of the North Ecliptic Pole with SPEAR. https://doi.org/10.1086/505195

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