REVIEW 6 cited by
Possible periodic activity in the repeating FRB 121102
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
The discovery that at least some Fast Radio Bursts (FRBs) repeat has ruled out cataclysmic events as the progenitors of these particular bursts. FRB~121102 is the most well-studied repeating FRB but despite extensive monitoring of the source, no underlying pattern in the repetition has previously been identified. Here, we present the results from a radio monitoring campaign of FRB~121102 using the 76-m Lovell telescope. Using the pulses detected in the Lovell data along with pulses from the literature, we report a detection of periodic behaviour of the source over the span of five years of data. We predict that the source is currently `off' and that it should turn `on' for the approximate MJD range $59002-59089$ (2020-06-02 to 2020-08-28). This result, along with the recent detection of periodicity from another repeating FRB, highlights the need for long-term monitoring of repeating FRBs at a high cadence. Using simulations, we show that one needs at least 100 hours of telescope time to follow-up repeating FRBs at a cadence of 0.5--3 days to detect periodicities in the range of 10--150 days. If the period is real, it shows that repeating FRBs can have a large range in their activity periods that might be difficult to reconcile with neutron star precession models.
Forward citations
Cited by 6 Pith papers
-
Two new highly scattered fast radio bursts: evidence for scatter broadening by the circumsource medium
FRB240312D is the first highly scattered FRB whose scattering screen is localized to within about 8 pc of the source, with the two new bursts implying a rate consistent with shorter FRBs.
-
Formation of rotating supergiants via stellar mergers in dense clusters: Implications for black hole natal spins
Stellar mergers with mass ratio q≳0.3 in young clusters can produce blue-supergiant progenitors that leave black holes with dimensionless spins a≃0.5–0.8, reducing post-merger retention and hierarchical-merger rates.
-
H.E.S.S. programme searching for VHE gamma rays associated with FRBs
H.E.S.S. found no very high energy gamma-ray counterpart to targeted fast radio bursts, setting 99% confidence upper limits on their luminosity of 10^44 to 10^48 erg/s.
-
Revealing the internal magnetic field configuration of magnetars via their associated periodic signals
Using observed precession periods and surface temperatures, the authors constrain the internal fields of four magnetars and two FRB hosts, finding toroidal field strengths of order 10^15 G and a toroidal distribution ...
-
Deriving the Energy Function of Non-repeaters from CHIME/FRB Baseband Data
Using 116 CHIME baseband non-repeaters, the energy function is Schechter-like at low redshift, but the high-redshift slope and rate evolution are too uncertain to choose between star-formation and old-stellar progenitors.
-
Rapid Response Triggering for Radio Transients with the SKA Observatory
SKA-Low and SKA-Mid should implement automated rapid-response triggering on external and internal alerts to enable early radio observations of diverse transients.
Discussion (0). Continue with ORCID to comment.