A wide low-mass binary model for the origin of axially symmetric non-thermal radio sources

Nature ◽  
1985 ◽  
Vol 317 (6038) ◽  
pp. 599-601 ◽  
Author(s):  
M. de Kool ◽  
E. P. J. van den Heuvel
Keyword(s):  
Radio Sources ◽  
Axially Symmetric ◽  
Thermal Radio ◽  
Binary Model ◽  
Low Mass

Observations of Shell-Type Galactic Radio Sources

1967 ◽  
Vol 1 (1) ◽  
pp. 21-21 ◽  
Author(s):  
E. R. Hill
Keyword(s):  
Radio Telescope ◽  
Shell Structure ◽  
Radio Spectrum ◽  
Radio Sources ◽  
Thermal Radio ◽  
Shell Type ◽  
Galactic Radio

Survey type observations have been made with the Parkes radio-telescope of 4 galactic radio sources having either a non-thermal radio spectrum, or exhibiting shell structure in their emitting regions. Observations were made at a wavelength of 11 cm using the Parkes radiotelescope where the beamwidth is about 7.5 min.arc.

scholarly journals Measurements Of The Flux Density Of Discrete Radio Sources At 6 Cm Wavelength

1966 ◽  
Vol 19 (4) ◽  
pp. 577 ◽  
Keyword(s):  
Flux Density ◽  
Radio Telescope ◽  
Power Law ◽  
Radio Sources ◽  
Frequency Range ◽  
Thermal Radio ◽  
Discrete Radio Sources ◽  
Selection Of ◽  
Lower Frequencies

The flux densities of 67 non-thermal radio sources have been measured at a frequency of 5000 Mc/s with the CSIRO 210 ft radio telescope at Parkes. The sources were chosen from the stronger objects in the 3C catalogue (Edge et al. 1959), the CTA and CTD catalogues (Harris and Roberts 1960; Kellermann and Read 1965), and the Parkes catalogue (Bolton, Gardner, and Mackey 1964; Price and Milne 1965; Day et al. 1966). In the selection of sources observed in this program, special emphasis was placed on objects whose spectra at lower frequencies showed significant departures from the usual power law with an index near -0�8. Most of the sources reported here have not been previously measured at wavelengths shorter than 10 cm and thus the present observations extend the frequency range of their spectra by nearly a factor of two.

scholarly journals A Radio Survey of the Southern Milky Way at a Frequency of 1440 Mc/s. I. The Isophotes and the Discrete Sources

1962 ◽  
Vol 15 (3) ◽  
pp. 354 ◽  
Author(s):  
DS Mathewson ◽  
JR Healey ◽  
JM Rome
Keyword(s):  
Milky Way ◽  
Galactic Disk ◽  
Spectral Characteristics ◽  
Radio Sources ◽  
Spectral Indices ◽  
Thermal Radio ◽  
Background Emission ◽  
Optical Identifications ◽  
Half Power ◽  
The Continuum

The 1440 Mc/s isophotes of the Southern Milky Way are presented which were obtained with an aerial beam 50' of arc at half-power points. The positions and intensities of the discrete sources resolved from the background emission are listed together with their spectral characteristics determined by comparison with the 85 -5 Mc/s Mills-Cross survey. Of 74 sources, 54 are found to have spectral indices consistent with the assumption that they radiate thermally_ Twelve new identifications of these thermal radio sources haye been made with emission nebulae by comparison with the Stromlo Atlas of Hex emission. The remaining twenty sources have nonthermal spectral indices and no new optical identifications have been made_ The continuum background emission from the galactic disk is discussed in a second paper.

The Spectra of the Strongest Non-Thermal Radio Sources in the Centimeter Wavelength Range.

1965 ◽  
Vol 142 ◽  
pp. 122 ◽  
Author(s):  
J. W. M. Baars ◽  
P. G. Mezger ◽  
H. Wendker
Keyword(s):  
Wavelength Range ◽  
Radio Sources ◽  
Thermal Radio

scholarly journals Radio Maps of the Regions RCW 57 and W 49

1989 ◽  
Vol 120 ◽  
pp. 131-131
Author(s):  
N.S. Sabalisck ◽  
Z. Abrahan ◽  
C.E. Tateyama
Keyword(s):  
Spectral Index ◽  
Supernova Remnant ◽  
Angular Resolution ◽  
Radio Sources ◽  
Thermal Radio ◽  
5 Ghz

We present maps of the regions RCW57 and W59 in the frequency of 22 GHz with 4.’6 angular resolution. The thermal radio sources RCW57 II are well resolved in the map. RCW57 I presents, at this frequency a diameter twice as large as that reported at 5 GHz, obtained with similar resolution, but coincides with the size of the source at the wavelenght of 1 mm. In the map of the RCW57 region we detected also the supernova remnant G291.0-0.1, of plerionic type. We find a break in the spectrum of this source between 8 and 22 GHz, with the spectral index changing from −0.29 to −0.77. This behaviour is also found in other remnats of the same type.

scholarly journals PROPER MOTIONS OF THERMAL RADIO SOURCES NEAR HH 7-11 IN THE NGC 1333 STAR-FORMING REGION

2008 ◽  
Vol 136 (6) ◽  
pp. 2238-2243 ◽  
Author(s):  
Carlos Carrasco-González ◽  
Guillem Anglada ◽  
Luis F. Rodríguez ◽  
José M. Torrelles ◽  
Mayra Osorio
Keyword(s):  
Radio Sources ◽  
Proper Motions ◽  
Star Forming ◽  
Thermal Radio
Sign in / Sign up

Export Citation Format

Share Document