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X-RAYS
X-rays are a type of electromagnetic radiation (between
ultraviolet light and gamma rays in wavelength, frequency, and
energy) - basically, it's light that is way past the blue-violet
end of the visible spectrum - we cannot see it. They have short
wavelength (and high frequency) as compared to visible light.
Each photon of X-ray radiation has a lot of energy. X-rays can
go through most solid objects. X-ray images of celestial objects
are one way of learning about their high-energy properties. For
example, the sun's corona emits X-rays, especially over
sunspots. The Einstein X-ray satellite was launched in 1978 to
survey celestial X-ray sources. |
X-RAY ASTRONOMY
X-ray astronomy studies celestial objects by looking at the
x-rays that they give off. |
X-RAY BINARY STAR
X-ray binary stars are a special type of binary star in which
one of the stars is a collapsed object such as a white dwarf,
neutron star, or black hole. As matter is stripped from the
normal star, it falls into the collapsed star, producing X-rays. |
X-RAY BURSTER
An X-ray burster is an object that emits bursts of X-rays. |
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