Super-giant pulses from the Crab pulsar : Energy distribution and occurrence rate

Abstract

We present statistical analysis of a fluence limited sample of over 1100 giant pulses from the Crab pulsar, with fluence > 130 Jy ms at ~1330 MHz. These were detected in ~260 hours of observation with the National Centre for Radio Astrophysics (NCRA)-15m radio telescope. We find that the pulse energy distribution follows a power law with index $\alpha \approx$-3 at least up to a fluence of ~5 Jy s. The power law index agrees well with that found for lower energy pulses in the range 3-30 Jy ms. The fluence distribution of the Crab pulsar hence appears to follow a single power law over ~3 orders of magnitude in fluence. We do not see any evidence for the flattening at high fluences reported by earlier studies. We also find that at these fluence levels, the rate of giant-pulse emission varies by as much as a factor of ~5 on time-scales of a few days, although the power law index of the pulse-energy distribution remains unchanged. The slope of the fluence distribution for Crab giant pulses is similar to that recently determined for the repeating FRB 121102. We also find an anti-correlation between the pulse fluence and the pulse width, so that more energetic pulses are preferentially shorter.

arXiv comment5 pages, 6 figures

References in corpus (25)

• A Repeating Fast Radio Burst
• Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey
• The repeating Fast Radio Burst FRB 121102: Multi-wavelength observations and additional bursts
• Supergiant Pulses from Extragalactic Neutron Stars
• Radio Emission Signatures in the Crab Pulsar
• Fast radio bursts: search sensitivities and completeness
• The Brightest Pulses in the Universe: Multifrequency Observations of the Crab Pulsar's Giant Pulses
• A sample of low energy bursts from FRB 121102
• A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra
• Fast radio bursts as giant pulses from young rapidly rotating pulsars
• Non-Cosmological FRBs from Young Supernova Remnant Pulsars
• On the non-Poissonian repetition pattern of FRB121102
• Fast Radio Bursts---A Brief Review: Some Questions, Fewer Answers
• Giant pulses from the Crab pulsar: A wide-band study
• Simultaneous Dual Frequency Observations of Giant Pulses from the Crab Pulsar
• Are all fast radio bursts repeating sources?
• A survey of FRB fields: Limits on repeatability
• A Giant Sample of Giant Pulses from the Crab Pulsar
• Bright Giant Pulses from the Crab Nebula Pulsar: Statistical Properties, Pulse Broadening and Scattering due to the Nebula
• Mode changing and giant pulses in the millisecond pulsar PSR B1957+20
• A detailed study of giant pulses from PSR B1937+21 using the Large European Array for Pulsars
• Giant Radio Pulses from the Crab Pulsar
• Short-lived Radio Bursts from the Crab Pulsar
• Luminosity-duration relation of fast radio bursts
• Irregularities in the rate of generation of giant pulses from the Crab pulsar observed at 111 MHz

Cited by in corpus (25)

• A bright millisecond-duration radio burst from a Galactic magnetar
• Repeating behaviour of FRB 121102: periodicity, waiting times and energy distribution
• Implications of a rapidly varying FRB in a globular cluster of M81
• The FRB 20121102A November rain in 2018 observed with the Arecibo Telescope
• A burst storm from the repeating FRB 20200120E in an M81 globular cluster
• The Thousand-Pulsar-Array programme on MeerKAT III: Giant pulse characteristics of PSR J0540$-$6919
• Comprehensive analysis of a dense sample of FRB 121102 bursts
• The Galactic population and properties of young, highly-energetic pulsars
• Dual-frequency single-pulse study of PSR B0950+08
• Burst properties of the highly active FRB 20201124A using uGMRT
• Resolving the Emission Regions of the Crab Pulsar's Giant Pulses II. Evidence for Relativistic Motion
• A Nançay Radio Telescope study of the hyperactive repeating FRB 20220912A
• The first 7 months of the 2020 X-ray outburst of the magnetar SGR J1935+2154
• Galactic Radio Explorer: an all-sky monitor for bright radio bursts
• The Apertif Radio Transient System (ARTS): Design, Commissioning, Data Release, and Detection of the first 5 Fast Radio Bursts
• Narrow-band giant pulses from the Crab pulsar
• A Flat-Spectrum Radio Transient at 122 Mpc consistent with an Emerging Pulsar Wind Nebula
• Fast radio burst detection in the presence of coloured noise
• Statistical properties of fast radio bursts elucidate their origins: magnetars are favoured over gamma-ray bursts
• A FRB in a Globular Cluster: Why Is This Neutron Star Different From (Almost) All Other Neutron Stars?
• When Outliers Are Different
• Observational effects of banded repeating FRBs
• Stimulated-emission based model of fast radio bursts
• Measurements of the Crab Pulsar's Giant Radio Pulse Amplitude Power-Law Index Using Low-Frequency Arecibo and Green Bank Telescope Observations
• Constraining the selection corrected luminosity function and total pulse count for radio transients