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Evidence for Centrifugal Barrier in X-ray Pulsar GRO J1744-28 | | Wei Cui
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13 Dec 1997 | | Subject: | astro-ph | | Affiliation: | MIT | | Abstract: | We present further observational evidence of the effects of a centrifugal barrier in GRO J1744-28, based on continued monitoring of the source with RXTE. For X-ray pulsars, the centrifugal barrier manifests itself in the cessation of pulsed emission when the source becomes faint. We show that such phenomenon occurred repeatedly for GRO J1744-28, following the decay of two X-ray outbursts. This has allowed a direct measurement of the dipole field strength for this pulsar. Here we argue that some of the other peculiar properties observed of this source may also be related to an active centrifugal barrier. | | Source: | arXiv, astro-ph/9712175 | | Services: | Forum | Review | PDF | Favorites | |
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