Data

Parkes observations for project P874 semester 2014APRS_BPSR_02

Commonwealth Scientific and Industrial Research Organisation
Ferdman, Robert ; Kaspi, Victoria ; Gotthelf, Eric
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.4225/08/56FBDF435857F&rft.title=Parkes observations for project P874 semester 2014APRS_BPSR_02&rft.identifier=https://doi.org/10.4225/08/56FBDF435857F&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=We propose to perform a directed search for a pulsed radio-emitting counterpart to the rotation-powered 206-ms X-ray pulsar PSR J1640-4631, recently discovered with the NuSTAR X-ray telescope. This source has a very large spin-down rate, and hence is an excellent and rare candidate for the measurement of the source's “braking index,” a fundamental test of the electromagnetic braking hypothesis. A braking index below 2, as has been recently measured for a similar pulsar, would provide further evidence of a connection between pulsars and magnetars. We request time to initially verify this pulsar’s radio detectability, and to perform coherent timing observations that would lead to the aforementioned braking index measurement. If the pulsar is not detected in the initial observations, we will inform the director to withdraw the timing observation portion of our request.&rft.creator=Ferdman, Robert &rft.creator=Kaspi, Victoria &rft.creator=Gotthelf, Eric &rft.date=2015&rft.edition=v1&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_rights=All Rights (including copyright) CSIRO Australia 2015.&rft_subject=pulsars&rft_subject=neutron stars&rft_subject=magnetic fields&rft_subject=BPSR&rft_subject=HIPSR&rft_subject=Astronomical sciences not elsewhere classified&rft_subject=Astronomical sciences&rft_subject=PHYSICAL SCIENCES&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
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Data is accessible online and may be reused in accordance with licence conditions

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Brief description

We propose to perform a directed search for a pulsed radio-emitting counterpart to the rotation-powered 206-ms X-ray pulsar PSR J1640-4631, recently discovered with the NuSTAR X-ray telescope. This source has a very large spin-down rate, and hence is an excellent and rare candidate for the measurement of the source's “braking index,” a fundamental test of the electromagnetic braking hypothesis. A braking index below 2, as has been recently measured for a similar pulsar, would provide further evidence of a connection between pulsars and magnetars. We request time to initially verify this pulsar’s radio detectability, and to perform coherent timing observations that would lead to the aforementioned braking index measurement. If the pulsar is not detected in the initial observations, we will inform the director to withdraw the timing observation portion of our request.

Available: 2015-09-11

Data time period: 2014-04-01 to 2014-09-30

Subjects
Astronomical Sciences | Astronomical Sciences Not Elsewhere Classified | BPSR | HIPSR | Physical Sciences | magnetic fields | neutron stars | pulsars |

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