Radio Waves from Outside the Solar System

  title={Radio Waves from Outside the Solar System},
  author={KARL G. Jansky},
IN a recent paper1 on the direction of arrival of high-frequency atmospherics, curves were given showing the horizontal component of the direction of arrival of an electromagnetic disturbance, which I termed hiss type atmospherics, plotted against time of day. These curves showed that the horizontal component of the direction of arrival changed nearly 360° in 24 hours and, at the time the paper was written, this component was approximately the same as the azimuth of the sun, leading to the… Expand
The renaissance of radio astronomy: towards the Square Kilometre Array
In this paper, I will give a brief overview of the largest radio telescope in the world, the Square Kilometre Array (SKA). The history of this instrument, its development as a huge internationalExpand
1933: Radio Signals From Sagittarius [Historical Corner]
  • R. Nesti
  • History
  • IEEE Antennas and Propagation Magazine
  • 2019
This issue’s “Historical Corner” column is about the first ever detection of radio signals of extraterrestrial origin. It is focused on the Holmdel measurement campaign in the 1930s, highlighting theExpand
Prospects for Scrutiny of Pulsars with Polish Part of LOFAR
LOFAR (LOw Frequency ARray) is a new generation digitally controlled radio telescope consisting of phased array antenna stations with sensitivity, bandwidth, range of frequency, and digitalExpand
Radio Telescopes
  • J. Findlay
  • Physics
  • IEEE Transactions on Military Electronics
  • 1964
A radio telescope is used in radio astronomy to measure the intensity of the radiation received from various parts of the sky. Such a telescope must be able both to detect and to locate faint radioExpand
Radio astronomy has a wide electromagnetic spectrum. It is based on antennas, electronics, software etc., and thus highly technical. The radio data obtained from distant objects like stars, galaxies,Expand
A New Window on the Universe
In April 1933, at a small gathering at a meeting of the US National Committee of the International Scientific Radio Union (URSI), Bell Labs scientist Karl Guthe Jansky announced that he had detectedExpand
An imaging algorithm for a lunar orbit interferometer array
Radio astronomical observation below 30 MHz is hampered by the refraction and absorption of the ionosphere, and the radio frequency interference (RFI), so far high angular resolution sky intensityExpand
The Brown-Twiss Radio-Wave Interferometer
(Oct. 27, 2020) Young reported his double-slit experiment in [3] (1802), but with no figures. He was studying single-slit diffraction due to candlelight passing through a small, square hole when aExpand
John Bolton was born in Sheffield in 1922 and educated at Cambridge University. After wartime service in the Royal Navy, in 1946 he joined the CSIRO‘s Radiophysics Laboratory in Sydney and began workExpand
Introduction to Radio Astronomy
A general description of the nature of radio astronomy, its differences from optical astronomy, a review of the earliest beginnings of galactic and solar radio astronomy, and a listing of otherExpand


Directional Studies of Atmospherics at High Frequencies
  • K. Jansky
  • Physics, Geography
  • Proceedings of the Institute of Radio Engineers
  • 1932
A system for recording the direction of arrival and intensity of static on short waves is described. The system consists of a rotating directional antenna array, a double detection receiver and anExpand