Results 141 to 150 of about 84,680 (165)
Some of the next articles are maybe not open access.
Jets in Extragalactic Radio Sources
Science, 1984Observations now require that there be a continuous supply of energy to the giant extragalactic radio sources. These observations also suggest that this energy input may be in the form of streams or jets of gas emanating from the centers of galaxies and quasi-stellar objects. Current data indicate that the large-scale jet structures are not moving with
openaire +2 more sources
Alignment of distant radio sources
Nature, 1984A typical extragalactic radio source is a simple double or elongated structure with a well-defined orientation on the sky. In 1972, Willson1 investigated the relative orientation of 74 extragalactic 3C radio sources mapped at the Cambridge 1-mile telescope, and noted that extended extragalactic radio sources tend to be parallel if they are separated by
openaire +2 more sources
Radio Sources in the Vicinity of Source M 31
Science, 1967The region α (right ascension) equal to 23 h 50 m to 01 h 30 m , δ (declination) 39°20′ to 40°40′ has been observed at 195 and 430 megahertz with the 1000-foot (300 m) telescope of the Arecibo Ionospheric Observatory.
openaire +2 more sources
Nature, 1966
THE high-resolution observations of the radio source Cassiopeia A by Ryle, Elsmore and Neville1 show for the first time details of the structure of the source that suggest an interpretation of a feature of the nebulosity connected with the source the significance of which was not clear.
openaire +1 more source
THE high-resolution observations of the radio source Cassiopeia A by Ryle, Elsmore and Neville1 show for the first time details of the structure of the source that suggest an interpretation of a feature of the nebulosity connected with the source the significance of which was not clear.
openaire +1 more source
Compact steep-spectrum and peaked-spectrum radio sources
Astronomy and Astrophysics Review, 2021Christopher O'Dea +2 more
exaly
1976
Satellite low frequency radio measurements have revealed that the Earth is a very intense and interesting radio source with characteristics similar to other astronomical radio sources such as Jupiter, Saturn and the Sun. In this paper we summarize the primary characteristics of radio emissions from the Earth’s magnetosphere, consider the origin of ...
openaire +1 more source
Satellite low frequency radio measurements have revealed that the Earth is a very intense and interesting radio source with characteristics similar to other astronomical radio sources such as Jupiter, Saturn and the Sun. In this paper we summarize the primary characteristics of radio emissions from the Earth’s magnetosphere, consider the origin of ...
openaire +1 more source
Radio sources segmentation and classification with deep learning
Astronomy and Computing, 2023Baoqiang Lao, Sumit Jaiswal
exaly
The radio structures of southern 2-Jy radio sources
Monthly Notices of the Royal Astronomical Society, 1993Raffaella Morganti +2 more
exaly