Millisecond Pulsar
A millisecond pulsar is a type of radio or X-ray pulsar that has a rotation period measured in a small number of milliseconds, usually below 30 ms.
millisecond pulsar
a neutron star that rotates hundreds of times per second, which typically accretes matter from a stellar companion
minor planet ...
MILLISECOND PULSARS
In the mid-1980s an important new category of pulsars was found"a class of very rapidly rotating objects called millisecond pulsars. Several dozen millisecond pulsars are currently known in the Milky Way galaxy.
Millisecond Pulsar: A pulsar with a period of one thousandth of a second.
Millisecond Pulsar: A pulsar with a period of one thousandth of a second.
Millisecond pulsars can form if a dense pulsar, with its strong gravitational potential, is in a binary system. In this situation, it can pull material from its companion star to itself.
Many millisecond pulsars are in binary systems and it is believed that they are probably the end product of X-ray binary pulsars with relatively low mass companion stars.
[6.3] MILLISECOND PULSARS
[6.4] MAGNETARS & SOFT GAMMA-RAY REPEATERS
[6.5] BLACK HOLES DISCOVERED?
The 17 millisecond pulsars have been found courtesy of NASA's Fermi Space Telescope, which observes gamma-ray radiation from particles that have been accelerated in the powerful magnetic fields belonging to the pulsars.
"A planetary system around the millisecond pulsar PSR1257+12". Nature 355: 145 - 147. doi:10.1038/355145a0.
^ H. Roth, A Slowly Contracting or Expanding Fluid Sphere and its Stability, Phys. Rev. (39, p;525-529, 1932)
^ A.S.
Observations soon revealed that its magnetic field was much weaker than ordinary pulsars, while further discoveries cemented the idea that a new class of object, the "millisecond pulsars" (MSPs) had been found.
The pulsars with the shortest known periods are known as the millisecond pulsars. These pulsars have periods as short as between one and two milliseconds and their periods are very constant.
Millisecond pulsar periods are very constant. They don't slow down much implying a weak magnetic field. Most millisecond pulsars are found in binary systems.
The fastest, the Millisecond Pulsar (discovered in 1982), has a period of 0.00155 second, or 1.55 milliseconds, which is considerably shorter than that of any known pulsar.
4 Dec 03 - Nature today published a paper (Burgay et al. 2003, Nature, 426, 531-533) about a newly announced millisecond pulsar, PSR J0737-3039, in a relativistic binary system. Radio pulsars are neutron stars (NS) which have a mass of about 1.
It has a 23-millisecond pulsar PSR J0737-3039A and another pulsar, PSR J0737-3039B that rotates once every 2.8 seconds orbiting each other with a period of just 2.4 hours.
In the XTE J0929-314 system - only the third known "accreting" millisecond pulsar of its kind and the second identified with the Rossi Explorer in the past two months - the pulsar orbits its companion every 43 minutes.
Wolszczan had discovered the millisecond pulsar in question in 1990 at the Arecibo radio observatory. These were the first exoplanets ever verified, and they are still considered highly unusual in that they orbit a pulsar.
The existence of millisecond pulsars and pulsars with decreasing periods suggests that some pulsars are accreting matter, and "spinning up" as matter falling onto them applies a torque that makes them spin faster.
The astronomer (from Italy) at the controls was observing millisecond pulsars. He was kind enough to pause from studying his data on the monitor to tell us about his work with the millisecond pulsars.
A Dictionary of Astronomy entry for millisecond pulsar
A Dictionary of Astronomy entry for double pulsar
A Dictionary of Astronomy entry for Crab Pulsar
A Dictionary of Astronomy entry for Black Widow Pulsar ...
But this raises another question: The rotational period could be as fast as 0.001s, which we call the millisecond pulsars. What kind of objects can rotate so fast without flying apart?
The odd planet was discovered orbiting what's known as a millisecond pulsar - a tiny, fast-spinning corpse of a massive star that died in a supernova.
Consequently, globular clusters include some exotic classes of stars, including blue stragglers, low-mass x-ray binaries and millisecond pulsars.
5 milliseconds; the very rapid ones are called millisecond pulsars. The interval between pulses decreases ever so slightly with the passage of time, ...
Davis, and Miller Goss discover the millisecond pulsar PSR1937+214,
1985 - Michiel van der Klis discovers 30 Hz quasi-periodic oscillations in GX 5-1,
1987 - Ian Shelton discovers Supernova 1987a in the Large Magellanic Cloud ...
 See also: Pulsar, Second, Ray, Star, X-ray
  
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