What does x-ray astronomy mean?

Definitions for x-ray astronomy
x-ray as·tron·o·my

Here are all the possible meanings and translations of the word x-ray astronomy.


  1. X-ray astronomy

    The branch of astronomy dealing with the study of astronomical objects which emit X-rays, and the methods used to detect such objects.


  1. X-ray astronomy(Noun)

    An observational branch of astronomy, which deals with the study of X-ray emission from celestial objects.


  1. X-ray astronomy

    X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects. X-radiation is absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites. X-ray astronomy is the space science related to a type of space telescope that can see farther than standard light-absorption telescopes, such as the Mauna Kea Observatories, via x-ray radiation. X-ray emission is expected from astronomical objects that contain extremely hot gasses at temperatures from about a million kelvin to hundreds of millions of kelvin. Although X-rays have been observed emanating from the Sun since the 1940s, the discovery in 1962 of the first cosmic X-ray source was a surprise. This source is called Scorpius X-1, the first X-ray source found in the constellation Scorpius. The X-ray emission of Scorpius X-1 is 10,000 times greater than its visual emission, whereas that of the Sun is about a million times less. In addition, the energy output in X-rays is 100,000 times greater than the total emission of the Sun in all wavelengths. Based on discoveries in this new field of X-ray astronomy, starting with Scorpius X-1, Riccardo Giacconi received the Nobel Prize in Physics in 2002. It is now known that such X-ray sources as Sco X-1 are compact stars, such as neutron stars or black holes. Material falling into a black hole may emit X-rays, but the black hole itself does not. The energy source for the X-ray emission is gravity. Infalling gas and dust is heated by the strong gravitational fields of these and other celestial objects.


  1. Chaldean Numerology

    The numerical value of x-ray astronomy in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of x-ray astronomy in Pythagorean Numerology is: 1

Images & Illustrations of x-ray astronomy

  1. x-ray astronomyx-ray astronomyx-ray astronomy

Translations for x-ray astronomy

From our Multilingual Translation Dictionary

  • علم الفلك بالأشعة السينيةArabic

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"x-ray astronomy." Definitions.net. STANDS4 LLC, 2018. Web. 20 Nov. 2018. <https://www.definitions.net/definition/x-ray+astronomy>.

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