title: Magnetar-like emission from the young pulsar in Kes 75.
abstract: We report the detection of magnetar-like x-ray bursts from the young pulsar PSR J1846-0258, at the center of the supernova remnant Kes 75. This pulsar, long thought to be exclusively rotation-powered, has an inferred surface dipolar magnetic field of 4.9 x 10(13) gauss, which is higher than those of the vast majority of rotation-powered pulsars, but lower than those of the approximately 12 previously identified magnetars. The bursts were accompanied by a sudden flux increase and an unprecedented change in timing behavior. These phenomena lower the magnetic and rotational thresholds associated with magnetar-like behavior and suggest that in neutron stars there exists a continuum of magnetic activity that increases with inferred magnetic field strength.
authors.affiliation: NASA/Goddard Space Flight Center, Code 662, Greenbelt, MD 20771, USA. fotis.p.gavriil@nasa.gov
authors.forename: F P
authors.initials: FP
authors.lastname: Gavriil
authors.forename: M E
authors.initials: ME
authors.lastname: Gonzalez
authors.forename: E V
authors.initials: EV
authors.lastname: Gotthelf
authors.forename: V M
authors.initials: VM
authors.lastname: Kaspi
authors.forename: M A
authors.initials: MA
authors.lastname: Livingstone
authors.forename: P M
authors.initials: PM
authors.lastname: Woods