학술논문
The SPEAR Instrument and On-Orbit Performance
Document Type
Working Paper
Author
Edelstein, Jerry; Korpela, Eric; Adolfo, Joe; Bowen, Mark; Feuerstein, Michael; Hull, Jeffrey; Jelinsky, Sharon; Nishikida, Kaori; McKee, Ken; Berg, Peter; Chung, Ray; Fischer, Jorg; Min, Kyoung-Wook; Oh, Seung-Han; Rhee, Jin-Guen; Ryu, Kwangsun; Shinn, Jong-Ho; Han, Wonyong; Jin, Ho; Lee, Dae-Hee; Nam, Uk-Won; Park, Jang-Hyun; Seon, Kwang-Il; Yuk, In-Soo
Source
Astrophys.J. 644 (2006) L159-L162
Subject
Language
Abstract
The SPEAR (or 'FIMS') instrumentation has been used to conduct the first large-scale spectral mapping of diffuse cosmic far ultraviolet (FUV, 900-1750 AA) emission, including important diagnostics of interstellar hot (10^4 K - 10^6 K) and photoionized plasmas, H_2, and dust scattered starlight. The instrumentation's performance has allowed for the unprecedented detection of astrophysical diffuse far UV emission lines. A spectral resolution of 550 and an imaging resolution of 5' is achieved on-orbit in the Short (900 - 1175 AA) and Long (1335 - 1750 AA) bandpass channels within their respective 7.4 deg x 4.3' and 4.0 deg x 4.6' fields of view. We describe the SPEAR imaging spectrographs, their performance, and the nature and handling of their data.