The High Time Resolution Universe Pulsar Survey - I. System configuration and initial discoveries

By M. Keith, A. Jameson, Willem van Straten, M. Bailes, S. Johnston, Michael Kramer, A. Possenti, S. Bates, N. D. Ramesh Bhat, M. Burgay and 6 more. 2010

297 citations recorded by the source corpus.

We have embarked on a survey for pulsars and fast transients using the 13-beam multibeam receiver on the Parkes Radio Telescope. Installation of a digital backend allows us to record 400 MHz of bandwidth for each beam, split into 1024 channels and sampled every 64 μs. Limits of the receiver package restrict us to a 340 MHz observing band centred at 1352 MHz. The factor of 8 improvement in frequency resolution over previous multibeam surveys allows us to probe deeper into the Galactic plane for short-duration signals such as the pulses from millisecond pulsars. We plan to survey the entire southern sky in 42 641 pointings, split into low, mid and high Galactic latitude regions, with integration times of 4200, 540 and 270 s, respectively. Simulations suggest that we will discover 400 pulsars, of which 75 will be millisecond pulsars. With ∼30 per cent of the mid-latitude survey complete, we have redetected 223 previously known pulsars and discovered 27 pulsars, five of which are millisecond pulsars. The newly discovered millisecond pulsars tend to have larger dispersion measures than those discovered in previous surveys, as expected from the improved time and frequency resolution of our instrument.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/7441c73a331243c8e51bbed2d3c6755431dee74d

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In Astronomy and Astrophysics

1. Bing Zhang
2. Michael Kramer
3. B. Metzger
4. E. Berger
5. R. Shannon
6. N. Langer
7. T. Tauris
8. V. Ravi

In Instrumentation

1. M. Bessell
2. M. Shara
3. A. Burgasser
4. Simon Johnston
5. T. Tauris
6. B. Gaensler
7. Chris Flynn
8. Shivani Bhandari

Citations in the corpus

• Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts (2015, methodology): “The HTRU survey is an all-sky survey for pulsars and fast transient sources using the Parkes 64-m radio telescope in the Southern hemisphere (Keith et al. 2010) and the Effelsberg 100-m telescope in the Northern (Barr et al. 2013).”
• A FAST RADIO BURST IN THE DIRECTION OF THE CARINA DWARF SPHEROIDAL GALAXY (2014, methodology): “Data were recorded with the Berkeley-Parkes-Swinburne Recorder (BPSR) digital spectrometer using the same configuration used for the High Time Resolution Universe survey (Keith et al. 2010).”
• Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes (2017, methodology): “Parkes operated in FRB search mode with the Multibeam receiver (StaveleySmith et al. 1996) and the BPSR backend (Keith et al. 2010).”
• A real-time fast radio burst: polarization detection and multiwavelength follow-up (2014, background): “The effective bandwidth for our data is 340 MHz from 1182 to 1522 MHz due to communications satellites operating in the 1525 to 1559 MHz band (Keith et al. 2010).”
• The SUrvey for Pulsars and Extragalactic Radio Bursts – II. New FRB discoveries and their follow-up. (2017, methodology): “Follow-up observations were performed with the Parkes telescope using the Berkeley Parkes Swinburne Recorder (BPSR) observing set-up (Keith et al. 2010) immediately after the discovery of each real-time FRB.”
• GIANT SPARKS AT COSMOLOGICAL DISTANCES? (2014, methodology): “This archival analysis drew data from the “High Time Resolution Universe” (HTRU) survey which in turn used a digital filter bank (Keith et al. 2010), whereas the older Parkes data were obtained with an analog filter bank.”
• THE GALACTIC POSITION DEPENDENCE OF FAST RADIO BURSTS AND THE DISCOVERY OF FRB011025 (2014, background): “The High Time Resolution Universe (HTRU) survey, currently underway at the Parkes telescope (Keith et al. 2010), recently uncovered what appears to be an extragalactic population of single-bursting events (Thornton et al. 2013).”
• The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey (2017, background): “…1.4 GHz, has detected all but five of the FRBs published to date, with an average less than one event per 300 h. Searches are often performed in conjunction with pulsar surveys (e.g. Keith et al. 2010), which dedicate the majority of their time to searching for pulsars close to the Galactic plane.”
• COSMOLOGICAL FAST RADIO BURSTS FROM BINARY WHITE DWARF MERGERS (2013, background): “Thornton et al. (2013) recently reported the detection of four fast radio bursts (FRBs), discovered in the high Galactic latitude region of the High Time Resolution Universe survey (Keith et al. 2010) using the 64-m Parks radio telescope at ∼ 1.5 GHz.”
• Formation of millisecond pulsars with CO white dwarf companions – II. Accretion, spin-up, true ages and comparison to MSPs with He white dwarf companions (2012, background): “There has been intense, but so far unsuccessful, efforts to detect these objects in either radio or X-rays (D’Amico 2000; Keith et al. 2010; Patruno 2010).”
• FRBCAT: The Fast Radio Burst Catalogue (2016, methodology): “At Parkes, two primary data recording systems have been used: the analogue filterbank (AFB) and Berkeley Parkes Swinburne Recorder (BPSR; Keith et al. 2010).”
• Fifty years of pulsar candidate selection: from simple filters to a new principled real-time classification approach (2016, background): “The degree to which a signal is dispersed for an unknown pulsar cannot be known a priori (e.g. Keith et al. 2010; Levin 2012), thus several dispersion measure tests or ‘DM trials’ must be conducted to determine this value.”
• Science with the Murchison Widefield Array (2012, methodology): “When corrected to 1400 MHz using a spectral index of −1.8 (Maron et al. 2000), this would be 0.05 mJy, comparable to or better than ongoing surveys like the High Time Resolution Universe survey (Keith et al. 2010) or the Green Bank 350 MHz Driftscan Survey (Boyles et al. 2013; Lynch et al. 2013).”