A burst in a wind bubble and the impact on baryonic ejecta: high-energy gamma-ray flashes and afterglows from fast radio bursts and pulsar-driven supernova remnants

By Kohta Murase, K. Kashiyama, P. Mészáros. 2016

204 citations recorded by the source corpus.

Tenuous wind bubbles, which are formed by the spin-down activity of central compact remnants, are relevant in some models of fast radio bursts (FRBs) and super-luminous supernovae. We study their high-energy signatures, focusing on the role of pair-enriched bubbles produced by young magnetars, rapidly-rotating neutron stars, and magnetized white dwarfs. (i) First, we study the nebular properties and the conditions allowing for escape of high-energy gamma-rays and radio waves, showing that their escape is possible for nebulae with ages of >10-100 yr. In the rapidly-rotating neutron star scenario, we find that radio emission from the quasi-steady nebula itself may be bright enough to be detected especially at sub-mm frequencies, which is relevant as a possible counterpart of pulsar-driven SNe and FRBs. (ii) Second, we consider the fate of bursting emission in the nebulae. We suggest that an impulsive burst may lead to a highly relativistic flow, which would interact with the nebula. If the shocked nebula is still relativistic, pre-existing non-thermal particles in the nebula can be significantly boosted by the forward shock, leading to short-duration (maybe millisecond or longer) high-energy gamma-ray flashes. Possible dissipation at the reverse shock may also lead to gamma-ray emission. (iii) After such flares, interactions with the baryonic ejecta may lead to afterglow emission with a duration of days to weeks. In the magnetar scenario, this burst-in-bubble model leads to the expectation that nearby (<10-100 Mpc) high-energy gamma-ray flashes may be detected by HAWC and CTA, and the subsequent afterglow emission may be seen by radio telescopes such as VLA. (iv) Finally, we discuss several implications specific to FRBs, including constraints on the emission regions and limits on soft gamma-ray counterparts.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/ed5625c681c711909abc50e3eec44a74a52061be

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Citations in the corpus

Millisecond Magnetar Birth Connects FRB 121102 to Superluminous Supernovae and Long-duration Gamma-Ray Bursts (2017, background): “Magnetar Wind Nebula As in other young pulsar wind nebulae (Gaensler & Slane 2006), the rotationally powered wind from the magnetar inflates a nearly spherical bubble of relativistic electron/positron pairs behind the SN ejecta (Metzger et al. 2014; Murase et al. 2016).”
A Concordance Picture of FRB 121102 as a Flaring Magnetar Embedded in a Magnetized Ion–Electron Wind Nebula (2018, background): “…persistent radio source could be understood as emission from a compact magnetized nebula surrounding the young (decades to centuries old) neutron star, embedded behind the expanding supernova ejecta shell (Murase et al. 2016; Kashiyama & Murase 2017; Metzger et al. 2017; Omand et al. 2018).”
A Flaring Magnetar in FRB 121102? (2017, background): “The dynamics of such an impact and accompanying radiation was discussed by Lyubarsky (2014) and Murase et al. (2016).”
Fast Radio Bursts from Magnetars Born in Binary Neutron Star Mergers and Accretion Induced Collapse (2019, background): “A similar idea for rotationally powered plerionic emission from AIC and FRB sources was discussed by Piro & Kulkarni (2013) and Murase et al. (2016), respectively.”
The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales (2017, background): “Murase et al. (2016) and Piro (2016) discuss the properties of a young (< 1000 yr) SNR that is powered by the spin-down power of a neutron star or white dwarf.”
Nine New Repeating Fast Radio Burst Sources from CHIME/FRB (2020, background): “…include young, highly magnetised neutron stars that likely interact with their environments, such as supernova remnants (e.g. Lyubarsky 2014; Murase et al. 2016; Beloborodov 2017; Metzger et al. 2019) or massive black holes (e.g. Zhang 2018a), or bursting due to internal magnetar…”
Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves (2019, methodology): “…directly related to the bursting source itself (for instance if a flaring magnetar just happens to reside close to an AGN; Eatough et al. 2013), it could instead be a compact transient nebula powered by the FRB central engine (Murase et al. 2016; Metzger et al. 2017; Beloborodov 2017; Waxman 2017).”
Blast Waves from Magnetar Flares and Fast Radio Bursts (2019, background): “Lyubarsky (2014) considered a similar termination shock for a magnetar wind and pointed out that a giant flare could greatly boost the power of the termination shock and produce an FRB (see also Murase et al. 2016).”
A “Cosmic Comb” Model of Fast Radio Bursts (2017, background): “…rate. tions of FRBs all reveal associations with bright radio nebulae, it would suggest a new-born millisecond magnetar as the source of FRBs (e.g. Murase et al. 2016a; Metzger et al. 2017), an FRB coincident with a gravitational wave (GW) signal due to a neutron star - neutron star (NS-NS),…”
Fast radio burst source properties and curvature radiation model (2017, background): “…DM from the supernova remnant is nearly constant for a period of a few years as required by the data for FRB 121102 from which 17 bursts have been detected (Spitler et al. 2016; Scholz et al. 2016); this point has already been made recently by (Murase et al. 2016; Piro 2016; Metzger et al. 2017).”
A living theory catalogue for fast radio bursts (2018, methodology): “From these models, high-energy GRBs (Yu, 2014; Murase et al., 2016; Lyutikov and Lorimer, 2016; Metzger et al., 2017; Beloborodov, 2017), and possibly a coincident optical flash from the explosion (Lyutikov and Lorimer, 2016) are predicted.”