The end of summer in the Northern hemisphere brings us a bumper crop of papers for this edition of the FRB Newsletter, including a localized FRB without an obvious host galaxy, archival detection of a long-period radio transient over three decades, a potential Helium star magnetar progenitor, a large sample of FRB polarization measurements, deep X-ray limits on bursts from the M81 globular cluster FRB source, and so much more. We are also entering the era of FRB data platforms, with Blinkverse and the Petabyte Project among others. We hope you enjoy this collection, and as always, we appreciate your feedback and links to items of interest.

Host Galaxies and Localizations

• The unseen host galaxy and high dispersion measure of a precisely-localised Fast Radio Burst suggests a high-redshift origin; Marnoch et al., arXiv: 2307.14702

Observational Results

• A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism; Zhu et al., arXiv: 2307.16124
• Temporal and Spectral Properties of the Persistent Radio Source Associated with FRB 20190520B with the VLA; Zhang et al., arXiv: 2307.16355
• FRB 20121102A: images of the bursts and the varying radio counterpart; Rhodes et al., arXiv: 2308.04298
• Deep Synoptic Array Science: Polarimetry of 25 New Fast Radio Bursts Provides Insights into their Origins; Sherman et al., arXiv: 2308.06813
• Deep Synoptic Array Science: Implications of Faraday Rotation Measures of Localized Fast Radio Bursts; Sherman et al., arXiv: 2308.06816
• Statistical association between the candidate repeating FRB 20200320A and a galaxy group; Rafiei-Ravandi et al., arXiv: 2308.09608
• Multiwavelength Constraints on the Origin of a Nearby Repeating Fast Radio Burst Source in a Globular Cluster; Pearlman et al., arXiv: 2308.10930
• Validating the Sub-Burst Slope Law: A Comprehensive Multi-Source Spectro-Temporal Analysis of Repeating Fast Radio Bursts; Brown et al., arXiv: 2308.11729
• Dense Forests of Microshots in Bursts from FRB 20220912A; Hewitt et al., arXiv: 2308.12118
• Constraints on the persistent radio source associated with FRB 20190520B using the European VLBI Network; Bhandari et al., 2308.12801
• Searching for the spectral depolarisation of ASKAP one-off FRB sources; Uttarkar et al., arXiv: 2308.14387

Theory and Modeling

• Damping of strong GHz waves near magnetars and the origin of fast radio bursts; Beloborodov, arXiv: 2307.12182
• Constraining the FRB mechanism from scintillation in the host galaxy; Kumar et al., arXiv: 2307.15294
• FRBs and magnetar activity statistics; Popov, arXiv: 2308.03207
• Investigating Cosmological Models and the Hubble Tension using Localized Fast Radio Bursts; Wei & Melia, arXiv: 2308.05918
• Fast radio bursts generated by coherent curvature radiation from compressed bunches for FRB 20190520B; Cui et al., arXiv: 2308.10258
• Scintillated microlensing: measuring cosmic distances with fast radio bursts; Tsai et al., arXiv: 2308.10830
• Polarization Evolution of Fast Radio Burst Sources in Binary Systems; Xia et al., arXiv: 2308.14325

Algorithms, Instrumentation, and Data Access

• Blinkverse: A Database of Fast Radio Bursts, Xu et al., arXiv: 2308.00336
• The BINGO Project IX: Search for Fast Radio Bursts -- A Forecast for the BINGO Interferometry System; dos Santos et al., arXiv: 2308.06805
• Astro-COLIBRI: An Advanced Platform for Real-Time Multi-Messenger Astrophysics; Schussler et al., arXiv: 2308.07044
• The Petabyte Project; Lewis et al., arXiv: 2308.12432

Magnetars and other relevant results

• A long-period radio transient active for three decades; Hurley-Walker et al. Nature, DOI: 10.1038/s41586-023-06202-5
• Related News and Views discussion by Vicky Kaspi; "Slow-beating radio waves from a long-lived source", Nature, DOI: 10.1038/d41586-023-02295-0
• A long-period radio transient active for three decades: population study in the neutron star and white dwarf rotating dipole scenarios; Rea et al., arXiv: 2307.10351
• Change of rotation measure during eclipse of a black widow PSR J2051-0827; Wang et al., arXiv: 2307.13198
• Individual and Averaged Power Density Spectra of X-ray bursts from SGR J1935+2154: Quasiperiodic Oscillation Search and Slopes; Xiao et al., arXiv: 2307.14884
• Single Millisecond Pulsars from Dynamical Interaction Processes in Dense Star Clusters; Ye et al., arXiv: 2307.15740
• High Sensitivity Beamformed Observations of the Crab Pulsar's Radio Emission; Lin & van Kerkwijk, arXiv: 2307.16362
• A massive helium star with a sufficiently strong magnetic field to form a magnetar; Shenar et al., arXiv: 2308.08591, Science, DOI: 10.1126/science.ade3293

  "... the system contains a Wolf-Rayet star with a mass of 2 solar masses and a magnetic field of 43 kilogauss. Stellar evolution calculations indicate that this component will explode as a supernova, and that its magnetic field is strong enough for the supernova to leave a magnetar remnant."

• Testing a stochastic acceleration model of pulsar wind nebulae: Early evolution of a wind nebula associated with SN 1986J; Tanaka & Kashiyama, arXiv: 2308.08809
• Atypical radio pulsations from magnetar SGR 1935+2154; Wang et al., arXiv: 2308.08832
• The internal Faraday screen of Sagittarius A*; Wielgus et al., arXiv: 2308.11712

• Back in June 2023, the radio-emitting magnetar PSR J1809-1943 showed a change in its pulse arrival times, which was interpreted as a glitch in its spin frequency [ATel 16086]. An alternative interpretation that could explain the timing properties involves an 18% decrease in the magnetars spin-down rate [ATel 16164].
• The DSA-110 team have identified a new repeating FRB, localising it on the sky to ~arcsecond precision [ATel 16191]. One of the repeater bursts identified by the DSA-110 was also found to spatially and temporally coincide with a CHIME/FRB VOEvent candidate, implying that this repeater can exhibit broadband emission.
• Multiple bursts have been discovered from the repeating FRB 20220912A during a multi-telescope, multi-frequency campaign. The detections at 820MHz and subsequent non-detections at higher frequencies may imply a steep emission spectrum, although differences in collecting area and sensitivity, and the typical narrowband nature of repeating FRBs may complicate this interpretation [ATel 16196].

• The National Radio Science Meeting in Boulder, Colorado on January 9-13, 2024 is currently accepting abstract submissions until September 13, 2023. The special session in Commission J on CHIME/FRB Outriggers might be of interest to readers of this newsletter.

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