1. Measurements of ultraviolet radiation from a 5-km/s bow shock
- Author
-
R. J. Collins, Edward C. Zipf, Patrick J. Espy, P. W. Erdman, Graham V. Candler, Carl Howlett, and Deborah A. Levin
- Subjects
Fluid Flow and Transfer Processes ,Materials science ,Sounding rocket ,Spectrometer ,business.industry ,Mechanical Engineering ,Aerospace Engineering ,Condensed Matter Physics ,medicine.disease_cause ,symbols.namesake ,Optics ,Space and Planetary Science ,Bow wave ,Radiative transfer ,symbols ,medicine ,Langmuir probe ,Electron temperature ,Bow shock (aerodynamics) ,business ,Ultraviolet - Abstract
Ultraviolet emission from a 5.1-km/s re-entry bow shock was measured in a sounding rocket experiment launched from the Barking Sands Research Range (Kauai, Hawaii) in February 1991 at 14:30 GMT. Optical data were obtained on the downleg portion of the flight as the pay load descended from 115 to 62 km in a very shallow trajectory at a nearly constant speed. The intensity of the ultraviolet spectrum (A200-400 nm), and the vacuum ultraviolet resonance radiation emitted by atomic oxygen and hydrogen at A130.4 nm and A121.5 nm, respectively, were measured. Data from optical instruments in the 200-400-nm spectral region is presented here. Langmuir probe measurements provided data on the total plasma density and electron temperature in the boundary layer over a limited altitude range.
- Published
- 1994