jansky


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jan·sky

(jăn′skē)
n. Abbr. Jy
A unit of electromagnetic flux density often used in radio astronomy, equal to 10-26 watts per square meter per hertz.
[After Karl Jansky (1905-1950), American radio engineer.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

jansky

(ˈdʒænskɪ)
n, pl -skys
(Astronomy) a unit of flux density equal to 10–26 W m–2 Hz–1, used predominantly in radio and infrared astronomy. Symbol: Jy
[C20: named after K. G. Jansky]

Jansky

(ˈdʒænskɪ)
n
(Biography) Karl Guthe 1905–50, US electrical engineer. He discovered a source of radio waves outside the solar system (1932) and pioneered radio astronomy
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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The team collected their data by making use of the Hubble Space Telescope, the Karl Jansky Very Large Array and from the Very Large Telescope at the European Southern Observatory.
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Karl Jansky discovered in 1931 that the Milky Way broadcast short wave signals.
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