The Parkes Observatory Pulsar Data Archive

Hobbs, G.; Miller, D.; Manchester, R. N.; Dempsey, James; Chapman, Jessica M.; Khoo, J.; Applegate, James H.; Bailes, M.; Bhat, N. D. R.; Bridle, R.; Borg, A.; Brown, Andrew; Burnett, C.; Camilo, F.; Cattalini, C.; Chaudhary, A.; Chen, R.; D’Amico, N.; Kedziora-Chudczer, Lucyna; Cornwell, T. J.; George, R.; Hampson, G.A.; Hepburn, Mark; Jameson, A.; Keith, Michael; Kelly, Tricia; Kosmynin, A.; Lenc, E.; Lorimer, D. R.; Love, C.; Lyne, A. G.; McIntyre, Vince; Morrissey, J.; Pienaar, M.; Reynolds, John; Ryder, Gerry; Sarkissian, J. M.; Stevenson, Andrew W.; Treloar, Andrew; Straten, W. van; Whiting, M. T.; Wilson, G. W.

doi:10.1071/as11016

Cited by 87 publications

(51 citation statements)

References 38 publications

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“…The observational data analyzed in this paper were downloaded from the Parkes Pulsar Data Archive which is publicly available online 1 (Hobbs et al 2011). The single-pulse observations were made using the Parkes 64-m radio telescope at six epochs with the center beam of the 20 cm Multibeam receiver (Staveley-Smith et al 1996) and the Parkes digital filterbank systems PDFB3 and PDFB4.…”

Section: Observationsmentioning

confidence: 99%

Periodic Q-mode modulation in PSR J1825−0935 (PSR B1822−09)

Yan

Manchester

Wang

et al. 2019

Monthly Notices of the Royal Astronomical Society

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PSR J1825−0935 (PSR B1822−09) switches between radio-quiet (Q-mode) and radiobright (B-mode) modes. The Q-mode is known to have a periodic fluctuation that modulates both the interpulse and the main pulse with the same period. Earlier investigators argued that the periodic Q-mode modulation is associated with drifting subpulses. We report on single-pulse observations of PSR J1825−0935 that were made using the Parkes 64-m radio telescope with a central frequency of 1369 MHz. The high-sensitivity observations revealed that the periodic Q-mode modulation is in fact a periodic longitude-stationary intensity modulation occurring in the interpulse and the main pulse. The fluctuation spectral analysis showed that the modulation period is about 43P 1 , where P 1 is the rotation period of the pulsar. Furthermore, we confirm that the modulation patterns in the interpulse and the main pulse are phase-locked. Specifically, the intensities of the interpulse and the immediately following main pulse are more highly correlated than for the main pulse and interpulse at any other lag. Polarization properties of the strong and weak Q-mode states are different, even for the trailing part of the main pulse which does not show the periodic intensity modulation.

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Section: Observationsmentioning

confidence: 99%

Periodic Q-mode modulation in PSR J1825−0935 (PSR B1822−09)

Yan

Manchester

Wang

et al. 2019

Monthly Notices of the Royal Astronomical Society

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“…We therefore wished to understand why this pulsar had not been discovered by previous surveys. We checked the Parkes data archive (Hobbs et al 2011) and downloaded previous search mode observations (that were not embargoed) that were observed at positions within 10 arcmin of the known pulsar position. We identified two observations 10 , each of 4.3 min duration, and searched for the pulsar using presto 11 (Ransom 2001).…”

Section: Long-term On-off Time Scalementioning

confidence: 99%

“…The observations from the Parkes telescopes have been obtained using project codes PX500 and PX501. Conditional on data embargoes, these data are available on CSIRO's data archive 12 (Hobbs et al 2011). We note that observations of the pulsar currently in the archive were recorded under the source name PSR J1926−0649 (instead of the correct name of PSR J1926−0652).…”

Section: Appendixmentioning

confidence: 99%

PSR J1926-0652: A Pulsar with Interesting Emission Properties Discovered at FAST

Zhang

Hobbs

et al. 2019

ApJ

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We describe PSR J1926−0652, a pulsar recently discovered with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Using sensitive single-pulse detections from FAST and long-term timing observations from the Parkes 64-m radio telescope, we probed phenomena on both long and short time scales. The FAST observations covered a wide frequency range from 270 to 800 MHz, enabling individual pulses to be studied in detail. The pulsar exhibits at least four profile components, short-term nulling lasting from 4 to 450 pulses, complex subpulse drifting behaviours and intermittency on scales of tens of minutes. While the average band spacing P 3 is relatively constant across different bursts and components, significant variations in the separation of adjacent bands are seen, especially near the beginning and end of a burst. Band shapes and slopes are quite variable, especially for the trailing components and for the shorter bursts. We show that for each burst the last detectable pulse prior to emission ceasing has different properties compared to other pulses. These complexities pose challenges for the classic carousel-type models.

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“…As the only known pulsar that is located at the GC, PSR J1745−1900 has been observed many times at multiple frequency bands by the Parkes 64-m radio telescope for many projects. Many of those data are publicly available in the Parkes Pulsar Data Archive 2 (Hobbs et al 2011). High signal-to-noise ratio (S/N) and long duration are the essential criteria for the selection of observational data to study single pulses.…”

Section: Observationsmentioning

confidence: 99%

Single-pulse observations of the Galactic Center magnetar PSR J1745−2900 at 3.1 GHz

Yan

Wang

Manchester

et al. 2018

Monthly Notices of the Royal Astronomical Society

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We report on single-pulse observations of the Galactic Center magnetar PSR J1745−2900 that were made using the Parkes 64-m radio telescope with a central frequency of 3.1 GHz at five observing epochs between 2013 July and August. The shape of the integrated pulse profiles was relatively stable across the five observations, indicating that the pulsar was in a stable state between MJDs 56475 and 56514. This extends the known stable state of this pulsar to 6.8 months. Short term pulse shape variations were also detected. It is shown that this pulsar switches between two emission modes frequently and that the typical duration of each mode is about ten minutes. No giant pulses or subpulse drifting were observed. Apparent nulls in the pulse emission were detected on MJD 56500. Although there are many differences between the radio emission of magnetars and normal radio pulsars, they also share some properties. The detection of mode changing and pulse nulling in PSR J1745−2900 suggests that the basic radio emission process for magnetars and normal pulsars is the same.

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The Parkes Observatory Pulsar Data Archive

Cited by 87 publications

References 38 publications

Periodic Q-mode modulation in PSR J1825−0935 (PSR B1822−09)

Periodic Q-mode modulation in PSR J1825−0935 (PSR B1822−09)

PSR J1926-0652: A Pulsar with Interesting Emission Properties Discovered at FAST

Single-pulse observations of the Galactic Center magnetar PSR J1745−2900 at 3.1 GHz

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