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Localized FRBs are Consistent with Magnetar Progenitors Formed in Core-Collapse Supernovae

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arxiv 2009.13030 v1 pith:BUQSNBTF submitted 2020-09-28 astro-ph.HE

Localized FRBs are Consistent with Magnetar Progenitors Formed in Core-Collapse Supernovae

classification astro-ph.HE
keywords frbshostsconsistentgalaxieshostpopulationburstsdistribution
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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With the localization of fast radio bursts (FRBs) to galaxies similar to the Milky Way and the detection of a bright radio burst from SGR J1935+2154 with energy comparable to extragalactic radio bursts, a magnetar origin for FRBs is evident. By studying the environments of FRBs, evidence for magnetar formation mechanisms not observed in the Milky Way may become apparent. In this paper, we use a sample of FRB host galaxies and a complete sample of core-collapse supernova (CCSN) hosts to determine whether FRB progenitors are consistent with a population of magnetars born in CCSNe. We also compare the FRB hosts to the hosts of hydrogen-poor superluminous supernovae (SLSNe-I) and long gamma-ray bursts (LGRBs) to determine whether the population of FRB hosts is compatible with a population of transients that may be connected to millisecond magnetars. After using a novel approach to scale the stellar masses and star-formation rates of each host galaxy to be statistically representative of $z=0$ galaxies, we find that the CCSN hosts and FRBs are consistent with arising from the same distribution. Furthermore, the FRB host distribution is inconsistent with the distribution of SLSNe-I and LGRB hosts. With the current sample of FRB host galaxies, our analysis shows that FRBs are consistent with a population of magnetars born through the collapse of giant, highly magnetic stars.

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Cited by 2 Pith papers

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  1. Fast Radio Bursts Trace Cosmic Star Formation with Little Delay

    astro-ph.HE 2026-07 conditional novelty 6.0

    Hierarchical Bayesian analysis of CHIME/FRB finds the FRB volumetric rate peaks with the cosmic star-formation history at mean delays of 0.1–0.3 Gyr, consistent with zero delay and ruling out multi-Gyr merger-like delays.

  2. Formation of rotating supergiants via stellar mergers in dense clusters: Implications for black hole natal spins

    astro-ph.HE 2026-07 conditional novelty 6.0

    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.