Possible Periodic Windowed Behavior in SGR1935+2154 Bursts

  title={Possible Periodic Windowed Behavior in SGR1935+2154 Bursts},
  author={Bruce Grossan},
  journal={Publications of the Astronomical Society of the Pacific},
  • B. Grossan
  • Published 30 June 2020
  • Physics
  • Publications of the Astronomical Society of the Pacific
It has been proposed that repeating fast radio burst (FRB) sources, FRB 20180916B and FRB 20121102A display periodic windowed behavior (PWB) in the times of FRB detections. In PWB, events occur only within a periodic activity window spanning a fixed fraction of the period, but no events might be detected during many periods. During UT 2020 April 28, two peaks of a soft gamma burst (detected with Insight-HXMT) were identified with two FRB peaks from soft gamma repeater (SGR) 1935+2154. As SGRs… 
Periodicity Search on X-Ray Bursts of SGR J1935+2154 Using 8.5 yr of Fermi/GBM Data
We performed a systematic search for X-ray bursts of the SGR J1935+2154 using the Fermi Gamma-ray Burst Monitor continuous data dated from 2013 January to 2021 October. Eight bursting phases, which
The Galactic neutron star population – I. An extragalactic view of the Milky Way and the implications for fast radio bursts
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The soft gamma repeater SGR 1900+14 became active again on 1998 June after a long period of quiescence; it remained at a low state of activity until 1998 August, when it emitted a series of
HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
Fast radio bursts (FRBs) are short pulses observed in the radio band from cosmological distances1. One class of models invokes soft gamma-ray repeaters (SGRs), or magnetars, as the sources of FRBs2.
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The newly discovered 16.35 days period for repeating FRB 180916.J0158+65 provides an essential clue for understanding the sources and emission mechanism of repeating FRBs. Many models propose that
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We show that the periodic FRB 180916.J0158+65 can be interpreted by invoking an interacting neutron star binary system with an orbital period of $\sim 16$ days. The FRBs are produced by a highly
Identification of the Infrared Counterpart of SGR 1935+2154 with the Hubble Space Telescope
We present deep Hubble Space Telescope observations of a new magnetar source, the soft gamma-repeater SGR 1935+2154, discovered by Swift. We obtained three epochs of observations: while the source
A fast radio burst associated with a Galactic magnetar.
The discovery of FRB 200428 implies that active magnetars such as SGR 1935+2154 can produce FRBs at extragalactic distances, and favours emission models that describe synchrotron masers or electromagnetic pulses powered by magnetar bursts and giant flares.
INTEGRAL Discovery of a Burst with Associated Radio Emission from the Magnetar SGR 1935+2154
We report on INTEGRAL observations of the soft $\gamma$-ray repeater SGR 1935+2154 performed between 2020 April 28 and May 3. Several short bursts with fluence of $\sim10^{-7}-10^{-6}$ erg cm$^{-2}$
X-ray and radio observations of the magnetar SGR J1935+2154 during its 2014, 2015, and 2016 outbursts
We analyzed broadband X-ray and radio data of the magnetar SGR J1935+2154 taken in the aftermath of its 2014, 2015, and 2016 outbursts. The source soft X-ray spectrum <10 keV is well described with a