The Monoceros radio loop: temperature, brightness, spectral index and distance

Abstract

In this paper we estimated the temperatures and brightnesses of the Monoceros radio loop at 1420, 820 and 408 MHz. Linear spectrum is estimated for mean temperatures versus frequency between 1420, 820 and 408 MHz. The spectral index of Monoceros loop is also obtained. The brightness temperatures and surface brightnesses of the loop are computed using data taken from radio-continuum surveys at the three frequencies. The spectral index of the loop is also obtained from $T-T$ plots between 1420 - 820, 1420 - 408 and 820 - 408 MHz. The obtained results confirm non-thermal origin of the Monoceros radio loop.

9 pages, 7 tables, 5 figures. Accepted for publication in Astron. Nachr

References in corpus (5)

• A New $\Sigma -D$ Relation and Its Application to the Galactic Supernova Remnant Distribution
• Discovery of a point-like very-high-energy gamma-ray source in Monoceros
• Radio emission from the Cygnus Loop and its spectral characteristics
• Spectral indices of Galactic radio loops between 1420, 820 and 408 MHz
• The Monoceros very-high-energy gamma-ray source

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• Temperature, brightness and spectral index of the Cygnus radio loop