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The Bursting Pulsar GRO J1744-28: the slowest transitional pulsar?

The Bursting Pulsar GRO J1744-28: the slowest transitional pulsar?
The Bursting Pulsar GRO J1744-28: the slowest transitional pulsar?
GRO J1744−28 (the Bursting Pulsar) is a neutron star low-mass X-ray binary which shows highly structured X-ray variability near the end of its X-ray outbursts. In this letter we show that this variability is analogous to that seen in Transitional Millisecond Pulsars such as PSR J1023+0038: ‘missing link’ systems consisting of a pulsar nearing the end of its recycling phase. As such, we show that the Bursting Pulsar may also be associated with this class of objects. We discuss the implications of this scenario; in particular, we discuss the fact that the Bursting Pulsar has a significantly higher spin period and magnetic field than any other known transitional pulsar. If the Bursting Pulsar is indeed transitional, then this source opens a new window of opportunity to test our understanding of these systems in an entirely unexplored physical regime.
1745-3925
L106-L110
Altamirano, Diego
d5ccdb09-0b71-4303-9538-05b467be075b
Altamirano, Diego
d5ccdb09-0b71-4303-9538-05b467be075b

Altamirano, Diego (2018) The Bursting Pulsar GRO J1744-28: the slowest transitional pulsar? Monthly Notices of the Royal Astronomical Society: Letters, 477 (1), L106-L110. (doi:10.1093/mnrasl/sly056).

Record type: Article

Abstract

GRO J1744−28 (the Bursting Pulsar) is a neutron star low-mass X-ray binary which shows highly structured X-ray variability near the end of its X-ray outbursts. In this letter we show that this variability is analogous to that seen in Transitional Millisecond Pulsars such as PSR J1023+0038: ‘missing link’ systems consisting of a pulsar nearing the end of its recycling phase. As such, we show that the Bursting Pulsar may also be associated with this class of objects. We discuss the implications of this scenario; in particular, we discuss the fact that the Bursting Pulsar has a significantly higher spin period and magnetic field than any other known transitional pulsar. If the Bursting Pulsar is indeed transitional, then this source opens a new window of opportunity to test our understanding of these systems in an entirely unexplored physical regime.

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The Bursting Pulsar GRO J1744-28 the slowest transitional pulsar - Accepted Manuscript
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More information

Accepted/In Press date: 3 April 2018
e-pub ahead of print date: 6 April 2018
Published date: June 2018

Identifiers

Local EPrints ID: 427886
URI: https://eprints.soton.ac.uk/id/eprint/427886
ISSN: 1745-3925
PURE UUID: 86e24351-0c7d-42ae-92b4-2697f8c9d94b
ORCID for Diego Altamirano: ORCID iD orcid.org/0000-0002-3422-0074

Catalogue record

Date deposited: 01 Feb 2019 17:30
Last modified: 14 Mar 2019 01:33

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