FRB Newsletter Volume 2, Issue 07 — July 2021

Total FRB count: 610 (3 new)
Repeaters: 24 (0 new)
Host galaxies: 15 (0 new)

From the editors:

There have been a flurry of announcements of recent results in advance of the upcoming FRB2021 meeting, including both the detection of a sub-second periodicity in an extended burst detected by CHIME/FRB, and the non-detection of any (short, burst-to-burst) periodicity in over 1700 bursts from FRB121102 detected with FAST. The FRB field continues to expand in novel and unexpected ways! Meanwhile, we hope our readers are staying safe and healthy during these difficult times, wherever they are.

Papers of interest

Recent Reviews
  • Fast Radio Bursts at the Dawn of the 2020s; Petroff, Hessels & Lorimer, arXiv: 2107.10113
Host Galaxies and Localizations
  • Chronicling the Host Galaxy Properties of the Remarkable Repeating FRB 20201124A; Fong et al., arXiv: 2106.11993
Observational Results
  • A Comparison of Galactic Electron Density Models Using PyGEDM; Price, Deller & Flynn, arXiv: 2106.15816
  • Astrometric Accuracy of Snapshot Fast Radio Burst Localisations with ASKAP; Day et al., arXiv: 2107.07068
  • Localizing FRBs Through VLBI with the Algonquin Radio Observatory 10-m Telescope; Cassanelli et al., arXiv: 2107.05659
  • Comprehensive Analysis of a Dense Sample of FRB 121102 Bursts; Aggarwal et al., arXiv: 2107.05658
  • Sub-Second Periodicity in a Fast Radio Burst; The CHIME/FRB Collaboration, arXiv: 2107.08463
  • A Bimodal Burst Energy Distribution of a Repeating Fast Radio Burst Source; Li et al., arXiv: 2107.08205
  • Absence of bursts between 4-8 GHz from FRB20200120E located in an M81 Globular Cluster; Gajjar et al., arXiv: 2107.09445
  • An Arecibo Search for Fast Radio Transients from M87; Suresh et al., arXiv: 2107.09687
Theory and Modeling
  • Fast Radio Bursts as Crustal Dynamical Events Induced by Magnetic Field Evolution in Young Magnetars; Horvath et al., arXiv: 2106.15030
  • Coherent Electromagnetic Emission from Relativistic Magnetized Shocks; Sironi et al., arXiv: 2107.01211
  • Dynamical Formation Channels for Fast Radio Bursts in Globular Clusters; Kremer, Piro & Li, arXiv: 2107.03394
  • Brightness Temperature Constraints on Coherent Processes in Magnetospheres of Neutron Stars; Lyutikov, arXiv: 2107.04414
  • Implications of a Rapidly Varying FRB in a Globular Cluster of M81; Lu, Beniamini & Kumar, arXiv: 2107.04059
Algorithms and Instrumentation
  • A Polarization Pipeline for Fast Radio Bursts Detected by CHIME/FRB; Mckinven et al., arXiv: 2107.03491
  • Low-Cost Access to the Deep, High-Cadence Sky: the Argus Optical Array; Law et al., arXiv: 2107.00664

    "These arrays can build two-color, million-epoch movies of the sky, enabling sensitive and rapid searches for high-speed transients, fast-radio-burst counterparts, ... and myriad other phenomena."

  • The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations; Abdalla et al., arXiv: 2107.01633

    "... BINGO can help discover and study Fast Radio Bursts (FRB) and other transients, Galactic and extragalactic science."

  • Astro-COLIBRI: A New Platform for Real-Time Multi-Messenger Astrophysics; Schussler at al., arXiv: 2107.05335

    "We showcase how Astro-COLIBRI facilitates the search for high-energy gamma-ray counterparts to high-energy neutrinos and scheduling of follow-up observations of a large variety of transient phenomena like gamma-ray bursts, gravitational waves, TDEs, FRBs, and others."

  • Preparing to discover the unknown with Rubin LSST -- I: Time domain; Xiaolong Li et al., arXiv: 2107.10281

    "... unlike traditional astrophysical tracers like supernovae or exoplanets, for anomalous objects the template signal is by definition unknown."

SGR 1935+2154 and other relevant magnetar results
  • Fermi-GBM Observations of the SGR J1935+2154 Burst Forest; Kaneko et al., arXiv: 2106.14172
From the Astronomer's Telegram
  • SGR 1935+2154 is active again! Renewed activity was first reported by Fermi GBM (GCN Circular 30313). A radio non-detection coincident with a gamma-ray burst from this source was reported by the Allen Telescope Array (ATel 14770).
  • FRB 20210630A was found at UTMOST in real-time using an automated GPU-accelerated/machine learning-based pipeline, with a DM of 943.7 pc/cc and a fluence of ~60.14 Jy-ms (ATel 14745).
  • A new magnetar SGR J1555.2-5402 was detected on 3 June 2021 by the Swift BAT (GCN Circular 30120). Radio follow up with the NASA DSN telescope at Canberra, Australia, at 2.3 GHz and 8.4 GHz (ATel 14678), Parkes telescope from 0.7 to 4 GHz (ATel 14680), and uGMRT at 550-750 MHz (ATel 14799) reported non-detections, with upper limits for pulsations and bursts.
Recent online talks of interest

  • Robert Lilow, "Probing Primordial Non-Gaussianity with Fast Radio Bursts", 6 September, 2020, Cosmology from Home 2020
  • Steffen Hagstotz, "A New Measurement of the Hubble Constant Using Fast Radio Bursts", 19 July, 2021, Cosmology from Home 2021
  • Discussion with Steffen Hagstotz, "The Hubble parameter measured with Fast Radio Bursts", 22 April, 2021, Cosmology Talks

We welcome your feedback, and pointers to other talks of interest.

Do you have an item for future newsletters? Please send these via email to the editors (Emily and Shami) to be included in an upcoming issue.