Galactic Center
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Polarização da radiação galáctica em 5 GHz: instrumentação, medidas e mapas / Polarization of the galactic emission at 5 GHz: instrumentation, measurements and maps
The Galactic Emission Mapping (GEM) project was proposed in the late 1990 s, aiming to characterize the microwave emission of the Milk Way, in order to provide high quality data and models to allow a better foreground substraction of Cosmic Microwave Background maps. The project employs a 5.5 m - diameter antenna, currently operating at the Cachoeira Paulist
Publicado em: 2008
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2. VARIAÇÕES ESPACIAIS DE PROPRIEDADES FÍSICAS DO REMANESCENTE DE SUPERNOVA RCW 103
Since the observation of the supernova event SN 1987A, observational research on supernova and supernova remnants, including the ones on the optical spectrum, has been much explored. However, most of these studies have been limited to present integrated or punctual data from extragalactic or galactic supernova remnants. The present work has the objective of
Publicado em: 2008
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3. Correção logarítmica no potencial Newtoniano e sua aplicação a galáxias espirais
A well elaborated characterization of the masses of the galaxies is of basic importance to understand the formation and the evolution of the galaxies, as well as the Universe. The circular speed of the spiral galaxies is used to estimate the mass of the galaxies. The observacional data of the rotation curves exactly show that the circular speeds practically
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2007
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4. First results from the Pierre Auger Observatory
We review in these notes the status of the construction of the Pierre Auger Observatory and present the first Physics results, based on the data collected during the first year and a half of operation. These results are preliminary, once the work to understand the systematics of the detectors are still underway. We discuss the cosmic ray spectrum above 3 EeV
Brazilian Journal of Physics. Publicado em: 2006-12
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5. MAPAS DE DENSIDADE E VELOCIDADE E ESTIMATIVA DE DISTÂNCIA DA REGIÃO H II GALÁCTICA NGC 2579
An observational study was accomplished about the range of eletron density in the HIIregion NGC 2579 and estimate its distance from the 8un and from the centre of the Galaxy. Long slit spectrophotometric data with high noise signal in the 6000 to 7000 Á were obtained by using the 1.60 m telescope of the Laboratório Nacional de Astrofísica LNA), MG. We obs
Publicado em: 2006
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6. Identificação de contrapartidas infravermelhas de fontes de raios-x na região do centro galáctico / Infrared counterparts of x-ray sources in the galactic center region
O telescópio de raios-X Chandra realizou um levantamento na região do Centro Galáctico produzindo um catálogo de 2357 fontes em um campo de 17 × 17 . As fontes possuem uma incerteza posicional ≤ 4 segundos de arco, o que facilita sobremaneira a identificação de contrapartidas em outros comprimentos de onda. Devido à grande extinção pelo meio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2005
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7. Infrared counterparts of x-ray sources in the galactic center region / Identificação de contrapartidas infravermelhas de fontes de raios-x na região do centro galáctico
The Chandra X-ray telescope has carried out a survey in the Galactic Center region resulting in a catalog of 2357 point sources in a 17 × 17 field-of-view. The positional uncertainty of the sources is <= 4 arcsec. This allowed us to identify counterparts in other wavelengths. In the optical region, due to the large extinction by the interstellar medium (
Publicado em: 2005
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8. STUDIES OF THE GALACTIC CENTER. IV. ON THE TRANSPARENCY OF THE GALACTIC STAR CLOUDS
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9. THE LONGITUDE OF THE GALACTIC CENTER AS DERIVED FROM THE INTENSITIES OF DETACHED CALCIUM LINES
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10. DISTRIBUTION AND MOTION OF INTERSTELLAR HYDROGEN IN THE GALACTIC SYSTEM WITH PARTICULAR REFERENCE TO THE REGION WITHIN 3 KILOPARSECS OF THE CENTER*