Nonthermal galactic emission below 10 MHz

Technical Report · Fri Jul 01 04:00:00 EDT 1977

OSTI ID:5142314

Novaco, J C; Brown, L W

The Radio Astronomy Explorer-2 (RAE-2) satellite has provided new measurements of the nonthermal galactic radio emission at frequencies below 10 MHz. Measurements of the emission spectra are presented for the center, anticenter, north polar, and south polar directions at 22 frequencies between 0.25 and 9.18 MHz. Survey maps of the spatial distribution of the observed low frequency galactic emission at 1.31, 2.20, 3.93, 4.70, 6.55, and 9.18 MHz are presented. The observations were obtained with the 229-meter traveling-wave V-antenna on this lunar orbiting spacecraft. The improved frequency coverage offers additional insights into structure of the local galactic neighborhood.

• Research Organization: National Aeronautics and Space Administration, New York (USA). Goddard Inst. for Space Studies
• OSTI ID: 5142314
• Report Number(s): N-77-31067; NASA-TM-X-71363; X-693-77-159
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
FREQUENCY RANGE
GALAXIES
KHZ RANGE
KHZ RANGE 100-1000
MAPS
MHZ RANGE
MHZ RANGE 01-100
MILKY WAY
RADIATIONS
RADIOWAVE RADIATION
SPATIAL DISTRIBUTION
SPECTRA