magnetars

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magnetars

(mag -nĕ-tarz) Highly magnetized neutron stars, thought to be responsible for soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs). A surface magnetic field of up to 1011 tesla (several hundred times that of a radio pulsar) rapidly slows the star's rotation, causing starquakes that deposit enough energy into the surrounding gases to generate bursts of soft gamma radiation. The field also heats the rotating surface sufficiently for it to emit X-rays, but the rotation is usually too slow for the neutron star to act as a radio pulsar. A large fraction of all neutron stars may be magnetars.
References in periodicals archive ?
The new technique developed by Dr Tiengo and his collaborators involves searching for variations in the X-ray spectrum of the magnetar over extremely short time intervals as it rotates.
She leads a team that uses Swift to monitor magnetars routinely.
For me the most interesting question is, why is this the only magnetar with a nebula?
We have long known that Sgr A* is one of the most heavily scattered objects in the galaxy, and new observations show that the magnetar suffers exactly the same fate, leading to a blurred image of the magnetar.
A magnetar is different from typical neutron stars, but SGR 0418 is different from other magnetars as well," the researcher noted.
This star and at least two other RRATs are slowing their spins, further suggesting that they might be old radio pulsars or fading magnetars, Duncan notes.
Magnetars are a type of neutron star, the dead cores of massive stars that have collapsed in on themselves after burning up all their fuel and exploding as dramatic supernovas.
Those galaxies are so distant that an X-ray glow from a magnetar eruption would be too faint to detect.
The additional $750 million of preferred shares have been placed with: a co-investment vehicle managed by EIG consisting of limited partners and qualified EIG employees; GSO Capital Partners LP, an affiliate of the Blackstone Group (NYSE:BX); and Magnetar Capital, a private asset management firm.
The most likely candidate is a magnetar, which is an exotic type of neutron star with an extremely strong magnetic field.
Swirling motions within the core may dramatically amplify the already strong magnetic field there, creating a magnetar.