Triggered superradiance and fast radio bursts. Issue 4 (10th November 2018)

• Record Type: Journal Article
• Authors: Houde, Martin; Rajabi, Fereshteh; Gaensler, B M; Mathews, Abhilash; Tranchant, Victor
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 482:Issue 4(2019)
• Page Start: 5492
• Page End: 5499
• Publication Date: 2018-11-10
• Subjects: molecular processes -- radiation mechanisms: general -- ISM: molecules; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/sty3046
• Languages: English
• ISSNs: 0035-8711

Abstract

Abstract: In this paper, we develop a model for fast radio bursts (FRBs) based on triggered superradiance (SR) and apply it to previously published data of FRB 110220 and FRB 121102. We show how a young pulsar located at ∼100 pc or more from an SR/FRB system could initiate the onset of a powerful burst of radiation detectable over cosmological distances. Our models using the OH 2 Π3/2 ( J = 3/2) 1612 MHz and 2 Π3/2 ( J = 5/2) 6030 MHz spectral lines match the light curves well and suggest the entanglement of more than 10 30 initially inverted molecules over lengths of approximately 300 au for a single SR sample. SR also accounts for the observed temporal narrowing of FRB pulses with increasing frequency for FRB 121102, and predicts a scaling of the FRB spectral bandwidth with the frequency of observation, which we found to be consistent with the existing data.