Empirical astronomy/Quiz
The three images on the right record emission events for AT2018cow. The first shows the galaxy Z 137-068. The second down on the right has two markers ending close to the fuzzy bright source AT2018cow. The third down on the right is a sequence of dated images.
Astronomers Glimpse a Luminous Object Born From a Star’s Death. Credit: Raffaella Margutti, Northwestern University.
Apparent supernova is bright fuzzy light nearest to the right-angle bars intersection. Credit: Sloan Digital Sky Survey, NASA.
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Astronomers using ground-based observatories caught the progression of a cosmic event nicknamed "the Cow," as seen in these three images. Credit: Daniel Perley, Liverpool John Moores University.
"Astronomers using ground-based observatories caught the progression of a cosmic event nicknamed "the Cow," as seen in these three images. Left: The Sloan Digital Sky Survey in New Mexico observed the host galaxy Z 137-068 in 2003, with the Cow nowhere in sight. (The green circle indicates the location where the Cow eventually appeared). Center: The Liverpool Telescope in Spain's Canary Islands saw the Cow very close to the event's peak brightness on June 20, 2018, when it was much brighter than the host galaxy. Right: The William Herschel Telescope, also in the Canary Islands, took a high-resolution image of the Cow nearly a month after it reached peak brightness, as it faded and the host galaxy came back into view."[1]
Empirical astronomy is a lecture about an approach to understanding astronomical phenomena. A portion of it is a mini-lecture empirical radiation astronomy for a quiz-section as part of the radiation astronomy course on the principles of radiation astronomy.
You are free to take this quiz based on empirical astronomy at any time.
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1Yes or No, A list or catalog of the specific principles incorporated into the development of the various radiation astronomies may be helpful to students and researchers alike.
2True or False, It has recently been suggested by Cane et al. 2002 that a class of type III solar radio bursts, called type III-l, is reliably associated with intense solar energetic particle (SEP) events.
3Yes or No, Arguably, the first principle of radiation astronomy is that there is a sky and it is not impervious.
4True or False, An antiproton is a proton moving backward in time.
5Yes or No, It may be an axiom that "there is a sky". But, it is probably a postulate that the sky "is not impervious."
6As an analysis method NRA may be associated with which phenomena?
a concentration vs. depth distribution
charged particles in large clouds
target elements may undergo a nuclear reaction
projectile stopping power is unknown
proton elastic scattering
a nuclear method in materials science
7Yes or No, Another early principle may be that outer space exists and it is not a perfect vacuum.
8Yes or No, It could be stated that space is only a manifestation of the ubiquity of electromagnetic radiation.
9Yes or No, "Radiation can be used as an approach to present astronomical observations and theory." is an empiricism.
10True or False, The only theory so far to describe how to produce solar flares is empirical.

Daniel Perley (14 July 2018). Holy Cow! Mysterious Blast Studied with NASA Telescopes. Pasadena, California USA: NASA / JPL. https://www.jpl.nasa.gov/news/news.php?feature=7314​. Retrieved 14 January 2019.
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{{Principles of radiation astronomy}}
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Last edited on 2 January 2021, at 04:46
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