摘要:

Observations of the interstellar medium have been obtained in the 500‐ to 1700‐Å spectral region by the ultraviolet spectrometers installed on the Voyager spacecraft. A preliminary analysis of the least complex of the spectra obtained to date indicates measurable emission in spectral lines at 584, 1026, and 1216 Å. These emissions are identified with resonance scattering of solar radiation in transitions of helium and atomic hydrogen. The observations in the direction α 324°, δ −23° contain no measurable direct emission or scattering of stellar radiation by the interstellar medium to an upper limit of 5 × 10−4R/Å at 975 Å. Spectra obtained in other directions indicate measurable sources of apparent continua having relatively broa

ISSN:0148-0227    

DOI:10.1029/JA084iA01p00139

年代:1979

数据来源: WILEY

ISSN:0148-0227    

DOI:10.1029/JA084iA01p00143

年代:1979

数据来源: WILEY