Um mapa da emissão galática em 408 MHz. / A map of the galactic emission at 408 MHz.

AUTOR(ES)

Rogério Rodrigues de Souza

DATA DE PUBLICAÇÃO

2000

RESUMO

We present a map of the Galactic Emission at 408 MHz prepared from the data collected with the radiotelescope of the Galactic Emission Mapping (GEM) project operating in the Owens Valleys desert (CA - USA) in April 1994. A total power receiver was used with the following characteristics: bandwidth of 28 MHz, noise temperature of 112 K, gain of 57. 8 KV-1, and a sensitivity of 28.5 mK. The map displays a total of 29.40 hours of observations and covers an area of the sky between h h 24 0 < < &#945; , and -3°22 &#8804; &#948; &#8804; +77°22. The beam resolution is 10.4° (HPBW) and the map pixelization is 1.6°. The data contamination level by radiofrequency interference was 36.58%, from a total of 53.46 hours of observations, while the Sun and the Moon contaminated 16.25% of the data.

ASSUNTO(S)

antenas bacfire mapas radiação sicróton receptores radiostronomia radiação de freamento radiação cósmica de fundo em microondas estrutura da galáxia interferência em radiofreqüência azimute

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