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X-ray burst

Astronomy X-ray binariesX-ray burster

X-ray bursts shouldn't be confused with gamma-ray bursts. Gamma-ray bursts are more energetics, and are distributed isotropically on the sky. No optical counterparts have been conclusively identified with any gamma-ray burst.

 


X-RAY BURSTS - Bursts of X-ray energy that occur in low-mass X-ray binary systems in which a neutron star and low-mass main sequence star are in orbit around one another.

X-ray Burst. A temporary enhancement of the X-ray emission of the Sun. The time-intensity profile of soft X-ray bursts is similar to that of the H-alpha profile of an associated flare.

X-ray burster: An object that produces occasional X-ray flares; believed to be caused by mass transfer in a close binary star system.

X-ray burst - Sporadic burst of X rays originating in the rapid consumption of nuclear fuels on the surface of the neutron star in a binary system
X-ray pulsar - A neutron star from which periodic bursts of X rays are observed ...

X-RAY BURSTER
A strong outburst of X-rays lasting a few seconds appearing to originate from an X-ray source at the edge of the known universe.
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X-RAY BURSTER
An X-ray burster is an object that emits bursts of X-rays.
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Astronomy Dictionary ...

X-ray burster X-ray source that radiates thousands of times more energy than our Sun, in short bursts that last only a few seconds.

X-ray burster - a neutron star with a low mass binary companion from which matter is accreted resulting in irregular bursts of energy from the surface of the neutron star.
Millisecond pulsar ("recycled pulsar") ...

X-ray Burster: A semidetached binary system where matter is accreting onto a neutron star. As hydrogen accretes onto a neutron star (possibly producing a variable X-ray source) the hydrogen is promptly burned into helium.

8. X-ray bursters result from accretion of material from a binary companion onto a _____ star. (Hint)
9. According to general relativity, space is warped, or curved, by _____. (Hint) ...

In one such event (picture on right), Yohkoh actually observed the position of an x-ray burst, localized at the top of a magnetic arch, well above the limb (edge) of the visible Sun.

These instruments included the Ultraviolet Spectrometer and Polarimeter (UVSP), the Active Cavity Radiometer Irradiance Monitor (ACRIM), the Gamma-Ray Spectrometer (GRS), the Hard X-Ray Burst Spectrometer (HXRBS), the soft X-Ray Polychromator (XRP), ...

Most of the matter in a star is blown away in the explosion (forming nebulae such as the Crab Nebula) but what remains will collapse into a neutron star (a pulsar or X-ray burster) or, in the case of the largest stars, a black hole.

This interval is consistent with turbulence in a disk of accreted matter surrounding a black hole-the accretion disk. X-ray bursts that last for about a third of a second match the expected time frame of matter falling toward a black hole.[35] ...

How is a Neutron star different from a White Dwarf?
What is a pulsar?
What is a nova? An X-ray burster?
How does a Type I (white dwarf) supernova work?

The object is too compact to be a dense cluster of stars---the Chandra X-ray Observatory's observations of X-ray bursts from the object place an upper limit of the diameter of the object of the size of the Earth's orbit.

Scientists report in Nature that a type of flickering found in these X-ray bursts, called "burst oscillations," serves as a direct measure of the pulsars' spin rate.

Fresh hydrogen falling from the disk onto a neutron star can produce great variability, become compressed and fuse to helium, and then explode violently as the helium fuses to carbon. The result is an X-ray burst similar in nature to a nova.

See also: X-ray, Ray, Energy, Light, Rays

Astronomy X-ray binariesX-ray burster

 
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