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 team of researchers also found evidence to support the theory of a magnetar - a fast-spinning, highly magnetized neutron star - being responsible for the large amount of light generated in a superluminous supernova explosion.
Magnetars have a magnetic field of the order of a trillion Gauss.
9]T covering BXPs and the majority of radio pulsars, another for magnetars at [B.
The supernova could have spawned an extremely rare type of star called a millisecond magnetar, a rapidly spinning and very dense star with a very strong magnetic field.
The Westerlund 1 star cluster, located 16 000 light-years away in the southern constellation of Ara (the Altar), hosts one of the two dozen magnetars known in the Milky Way.
As follows from our model--and it is getting evidence now--there are no essential differences between magnetars and X-ray pulsars.
The unmanned observatory, which is scheduled to launch no later than April 2014, will be the first to measure polarized X-rays to study supermassive black holes and magnetars.
El telescopio Hubble ha mostrado a nuestros ojos fenomenos del Universo como quasares, pulsares, magnetars y agujeros negros, asi como fotografias majestuosas de los remanentes de las supernovas o nebulosas, como las imagenes de las <<Columnas de la creacion>> de la Nebulosa del aguila (M16).
experiment, amongst others, high energy backgrounds and diffuse emissions including a report from the KASCADE experiment, gamma-ray bursts such as those observed in the "Pi in the Sky" experiment, a number of topics within the subject areas of black holes and neutron star systems, pulsars and magnetars, and an array of topics within the fields of shocks and particle acceleration.
You might call magnetars leftovers of giant stars," says Umran Inan, an engineering professor at Stanford University in Palo Alto, California, who studied the magnetar's blast.
Magnetars exhibit upwards of 1,000,000,000,000,000 gauss.
Astronomers suspect they are linked with imploding neutron stars or eruptions on magnetars.