High-frequency radio observations of normal galaxies

1973 ◽  
Vol 78 ◽  
pp. 18 ◽  
Author(s):  
W. H. McCutcheon
Keyword(s):  
High Frequency ◽  
Radio Observations ◽  
Normal Galaxies

scholarly journals Minibars in the Centers of Normal Galaxies

1996 ◽  
Vol 157 ◽  
pp. 207-211
Author(s):  
A. V. Zasov ◽  
O. K. Sil’chenko
Keyword(s):  
High Frequency ◽  
Spiral Galaxies ◽  
Velocity Fields ◽  
Frequency Of Occurrence ◽  
Gas Velocity ◽  
Ionized Gas ◽  
Normal Galaxies ◽  
Normal Spiral

AbstractAnalysis of ionized gas velocity fields in the circumnuclear regions of 13 normal spiral galaxies has shown that about half of them reveal a discrepancy between the kinematical axis at R < 2″ and the photometric or kinematical axes of the outer regions. This result indicates a high frequency of occurrence of non-axisymmetric gravitational potentials in the inner few hundred parsecs of galaxies. The possible nature of these minibars is discussed.

scholarly journals High supernova rate and enhanced star-formation triggered in M81-M82 encounter

2006 ◽  
Vol 2 (S237) ◽  
pp. 391-391
Author(s):  
B. Arbutina ◽  
D. Urošević ◽  
B. Vukotić
Keyword(s):  
Star Formation ◽  
Supernova Remnant ◽  
Close Encounter ◽  
Nearby Galaxy ◽  
Radio Observations ◽  
General Belief ◽  
Normal Galaxies

It is a general belief that the starburst activity of a nearby galaxy M82 was triggered in a close encounter with its massive companion M81, a few tens of million years ago. Despite the lack of supernovae observed, multiwavelength radio observations of M82 discovered a considerable number of compact supernova remnant candidates. We use these remnants to estimate the supernova rate (SNR) and the enhanced star-formation (SFR) rate in M82, and compare them with rates in normal galaxies.

High frequency radio observations of Seyfert galaxies

1978 ◽  
Vol 83 ◽  
pp. 566 ◽  
Author(s):  
W. H. McCutcheon ◽  
P. C. Gregory
Keyword(s):  
High Frequency ◽  
Seyfert Galaxies ◽  
Radio Observations

Radio Observations of Several Normal Galaxies.

1965 ◽  
Vol 142 ◽  
pp. 1333 ◽  
Author(s):  
Marvin L. de Jong
Keyword(s):  
Radio Observations ◽  
Normal Galaxies

scholarly journals Physical properties of the gamma-ray binary LS 5039 through low- and high-frequency radio observations

2015 ◽  
Vol 451 (1) ◽  
pp. 59-73 ◽  
Author(s):  
B. Marcote ◽  
M. Ribo ◽  
J. M. Paredes ◽  
C. H. Ishwara-Chandra
Keyword(s):  
Physical Properties ◽  
High Frequency ◽  
Gamma Ray ◽  
Radio Observations

scholarly journals New radio observations of the Type IIn Supernova 1978K

2016 ◽  
Vol 12 (S329) ◽  
pp. 444-444
Author(s):  
Stuart D. Ryder ◽  
Erik C. Kool ◽  
Rubina Kotak
Keyword(s):  
Blast Wave ◽  
Spatial Resolution ◽  
High Frequency ◽  
Very Long Baseline Interferometry ◽  
Expansion Velocity ◽  
Radio Observations ◽  
The Past ◽  
Long Baseline ◽  
New Radio ◽  
Compact Array

AbstractSN 1978K is the oldest-known Type IIn supernova, and one of the closest. We report new radio observations at high frequency and spatial resolution. SN 1978K has been detected at 34 and 94 GHz with the Australia Telescope Compact Array, while Very Long Baseline Interferometry at 8.4 GHz has allowed us to derive the past average expansion velocity, which indicates significant deceleration as the blast wave interacts with the dense circumstellar medium.

Hard X-ray and high-frequency decimetric radio observations of the 4 April 2002 solar flare

2003 ◽  
Vol 32 (12) ◽  
pp. 2503-2508 ◽  
Author(s):  
S.R. Kane ◽  
H.S. Sawant ◽  
J.R. Cecatto ◽  
M.C. Andrade ◽  
F.C.R. Fernandes ◽  
...  
Keyword(s):  
Solar Flare ◽  
High Frequency ◽  
Radio Observations ◽  
X Ray

scholarly journals Continuum radio emission from the Magellanic Clouds

1964 ◽  
Vol 20 ◽  
pp. 245-255 ◽  
Author(s):  
D. S. Mathewson ◽  
J. R. Healey
Keyword(s):  
Radio Emission ◽  
Radio Galaxy ◽  
Light Flux ◽  
Magellanic Clouds ◽  
Radio Observations ◽  
Normal Galaxies ◽  
Normal Galaxy ◽  
Continuum Radio ◽  
Lower Ratio

Before discussing the results of the radio observations of the Magellanic Clouds in detail, it is worth while to briefly review some of our current ideas about radio emission from “normal” galaxies which would be the classification given to the Clouds by radio astronomers. A “normal” galaxy has no striking visual peculiarity and has a much lower ratio of radio to light flux than the “radio” galaxy.

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