Data

Parkes observations for project P1372 semester 2025OCTS_03

Commonwealth Scientific and Industrial Research Organisation
Wang, Ziteng ; Zic, Andrew ; McSweeney, Samuel James ; Hurley-Walker, Natasha ; Petrou, Flora ; Tan, Chia Min
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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:doi10.25919/8v22-f041&rft.title=Parkes observations for project P1372 semester 2025OCTS_03&rft.identifier=https://doi.org/10.25919/8v22-f041&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=The gamma-ray source, 4GFL J1646.5-4406, has recently been identified as a new spider pulsar binary, and potentially a redback system due to its longer eclipse. With only ~30 redback systems known so far, a detailed analysis of such a new system is needed to further understand this population. We requested simultaneous 6x2-hour Murriyang UWL and 6x3-hour ATCA L-band observations on this newly identified pulsar, PSR J1646-4406, covering its ingress and/or egress to further constrain its orbital parameters, investigate the eclipse mechanism and intrabinary shocks, and understand its evolutionary pathways.&rft.creator=Wang, Ziteng &rft.creator=Zic, Andrew &rft.creator=McSweeney, Samuel James &rft.creator=Hurley-Walker, Natasha &rft.creator=Petrou, Flora &rft.creator=Tan, Chia Min &rft.date=2025&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 2025.&rft_subject=pulsars&rft_subject=neutron stars&rft_subject=compact binaries and/or black holes&rft_subject=transients&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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The gamma-ray source, 4GFL J1646.5-4406, has recently been identified as a new spider pulsar binary, and potentially a redback system due to its longer eclipse. With only ~30 redback systems known so far, a detailed analysis of such a new system is needed to further understand this population. We requested simultaneous 6x2-hour Murriyang UWL and 6x3-hour ATCA L-band observations on this newly identified pulsar, PSR J1646-4406, covering its ingress and/or egress to further constrain its orbital parameters, investigate the eclipse mechanism and intrabinary shocks, and understand its evolutionary pathways.

Available: 2025-12-29

Data time period: 2025-10-01 to 2026-03-31

Subjects
Astronomical Sciences | Astronomical Sciences Not Elsewhere Classified | Physical Sciences | compact binaries and/or black holes | neutron stars | pulsars | transients |

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Identifiers
ACN 633 798 857