FRB Newsletter Volume 1, Issue 14 — October 2020

Total FRB count: 137
Repeaters: 22
Host galaxies: 13

From the editors:

This issue of the newsletter arrives through rain and shine and a global pandemic and an international move by one of your editors. We hope our readers continue to stay safe and healthy as we bring you this round-up of recent papers and FRB news.

Papers of interest

Observational Results
  • Confronting the Magnetar Interpretation of Fast Radio Bursts Through Their Host Galaxy Demographics; Safarzadeh, Prochaska, Heintz & Fong, arXiv: 2009.11735
  • Localized FRBs are Consistent with Magnetar Progenitors Formed in Core-Collapse Supernovae; Bochenek, Ravi & Dong, arXiv: 2009.13030
  • Rotation Measure Evolution of the Repeating Fast Radio Burst Source FRB 121102; Hilmarsson et al., arXiv: 2009.12135
  • Multiwavelength Radio Observations of Two Repeating Fast Radio Burst Sources: FRB 121102 and FRB 180916.J0158+65; Pearlman et al., arXiv: 2009.13559
  • Observing Superluminous Supernovae and Long Gamma Ray Bursts as Potential Birthplaces of Repeating Fast Radio Bursts; Hilmarsson et al., arXiv: 2009.14042
  • Microsecond polarimetry of the repeating FRB 20180916B; Nimmo et al., arXiv: 2010.05800
  • Late-Time Radio and Millimeter Observations of Superluminous Supernovae and Long Gamma Ray Bursts: Implications for Obscured Star Formation, Central Engines, and Fast Radio Bursts; Eftekhari et al., arXiv: 2010.06612
Theory and Modeling
  • Statistical Modelling of the Cosmological Dispersion Measure; Ryuichi Takahashi, Kunihito Ioka, Asuka Mori, Koki Funahashi, arXiv: 2010.01560
  • Multi-plane Lensing in Wave Optics; Feldbrugge, arXiv: 2010.03089

    "The large number of recently observed pulsars and fast radio bursts in radio astronomy suggest that wave effects will likely be observed in the near future."

  • FRB 181112 as a Rapidly-Rotating Massive Neutron Star just after a Binary Neutron Star Merger?: Implications for Future Constraints on Neutron Star Equations of State; Shotaro Yamasaki, Tomonori Totani & Kenta Kiuchi, arXiv: 2010.07796
  • Self-modulation of Fast Radio Bursts; Sobacchi, Lyubarsky, Beloborodov & Sironi, arXiv: 2010.08282
  • Shock-Powered Radio Precursors of Neutron Star Mergers from Accelerating Relativistic Binary Winds; Sridhar et al., arXiv: 2010.09214
  • Dispersion and Rotation Measures from the Ejecta of Compact Binary Mergers: Clue to the Progenitors of Fast Radio Bursts; Zhao, Zhang, Wang & Wang, arXiv: 2010.10702
Algorithms and Instrumentation
  • An Analysis Pipeline for CHIME/FRB Full-Array Baseband Data; Michilli et al., arXiv: 2010.06748
  • The Capability of the Australian Square Kilometre Array Pathfinder to Detect Prompt Radio Bursts from Neutron Star Mergers; Ziteng Wang et al., arXiv: 2010.09949
SGR 1935+2154 and other relevant mangetar results
  • On the Rate of Crustal Failures in Young Magnetars; Dehman et al., arXiv: 2010.00617
  • Fermi/GBM View of the 2019 and 2020 Burst Active Episodes of SGR J1935+2154; Lin et al., arXiv: 2010.02767
  • Sleeping Beasts: Strong Toroidal Magnetic Field in Quiescent Magnetars Explains their Large Pulsed Fraction; Igoshev, Hollerbach, Wood & Gourgouliatos, arXiv: 2010.08553
  • The Effect of Radiation Reaction from the Bursts of Magnetars; Shuang Du & Weihua Wang, arXiv: 2010.08549
From the Astronomer's Telegram
  • SKA-Low prototype stations operating at 159.4 MHz and 229.7 MHz were observing the fields of FRBs 200914 and 200919 (reported previously; ATel 14040 and Issue 13) and report upper limits (ATel 14044).
  • CHIME/FRB reported the detection of three new pulses from SGR 1935+2154 on 8 October 2020 (ATel 14074) with fluences of 900+/-160, 9.2+/-1.6, 6.4+/-1.1 Jy ms (ATel 14080). STARE2 reports a non-detection of coincident bursts with an upper limit of 170 kJy ms on bursts at 1.4 GHz (ATel 14077). Note that the possible X-ray flare associated with the radio burst turned out to be a detector glitch (ATels 14075 and 14076). INTEGRAL also reports no gamma-ray counterparts (ATel 14087). Subsequent observations by FAST on 9 October 2020 did detect both multiple radio bursts and periodic radio emission at a spin period of 3.24781(1)s, with pulses aligned to within 0.03 of the spin phase (ATel 14084).
  • A new magnetar, SGR 1830-0645, was discovered by Swift BAT (ATel 14083) with a period of 10.4 sec identified in Swift XRT observations (ATel 14085). A host of follow up radio observations have all reported non-detections of pulsed or burst emission, including the GBT (ATel 14098), DSN (ATel 14102), and uGMRT (ATel 14091).
Recent online talks of interest

Most talks and meetings are online for now, and many are available as recorded versions, so we are trying out a provisional section for public recorded talks. We welcome your feedback, and pointers to other talks of interest.
  • Kenzie Nimmo, "Pin-pointing the positions of repeating Fast Radio Bursts", 19 October, 2020, EVN Seminar Series
  • Stefan Hackstein, "Redshift estimates for fast radio bursts and implications on intergalactic magnetic fields", 7 October 2020, CHIME/FRB Journal Club

  • The CHIME/FRB Journal Club is seeking speakers to present on their recent publications to the CHIME/FRB Collaboration. Talks will be recorded and available to a wider audience online. We particularly encourage presentations from early career researchers. Contact Cherry Ng and Emily Petroff for more details.

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.