All-reflection interferometer for extreme-ultraviolet airglow studies

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Optical Engineering; (United States)

DOI:https://doi.org/10.1117/12.149170· OSTI ID:5434283

Cotton, D M; Chakrabarti, S ^[1]

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1. Boston Univ., MA (United States). Center for Space Physics

The authors describe a possible sounding rocket payload consisting of an interferometer that would observe O I 1,304-[angstrom] solar and airglow emissions simultaneously and a low-resolution (15-[angstrom]) extreme ultraviolet (EUV) spectrometer with a band pass between 250 and 1,050 [angstrom] to measure the solar EUV flux, a primary source for the O I 1,304-[angstrom] dayglow emission. The solar measurements, the first of their kind, could provide detailed information on the column of O along the line of sight of the instrument as well as information on the full disk solar line profile, which is important to planetary as well as cometary physics. The information gained through line profile studies of the dayglow includes the relative contribution of the two main excitation mechanisms, photoelectron impact and solar resonance scattering, and a means to verify cross sections and branching ratios. Furthermore, valuable information on optically thick cascade enhancement can be ascertained. All such information will substantiate sophisticated models, electron and radiative transport, that can be utilized in the remote sensing of the thermosphere.

• OSTI ID: 5434283
• Journal Information: Optical Engineering; (United States), Journal Name: Optical Engineering; (United States) Vol. 32:12; ISSN 0091-3286; ISSN OPEGAR
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRGLOW
EARTH ATMOSPHERE
EMISSION SPECTRA
EXTREME ULTRAVIOLET SPECTRA
INTERFEROMETRY
REMOTE SENSING
SPECTRA
THERMOSPHERE
ULTRAVIOLET SPECTRA