FRB 20250316A: A Brilliant and Nearby One-off Fast Radio Burst Localized to 13 pc Precision
Artikel i vetenskaplig tidskrift, 2025

Precise localizations of a small number of repeating fast radio bursts (FRBs) using very long baseline interferometry (VLBI) have enabled multiwavelength follow-up observations revealing diverse local environments. However, the 2%-3% of FRB sources that are observed to repeat may not be representative of the full population. Here we use the VLBI capabilities of the full CHIME Outrigger array for the first time to localize a nearby (40 Mpc), bright (kJy), and apparently one-off FRB source, FRB 20250316A, to its environment on 13 pc scales. We use optical and radio observations to place deep constraints on associated transient emission and the properties of its local environment. We place a 5σ upper limit of L9.9 GHz < 2.1 × 1025 erg s−1 Hz−1 on spatially coincident radio emission, a factor of 100 lower than any known compact persistent radio source associated with an FRB. Our Keck Cosmic Webb Imager observations allow us to characterize the gas density, metallicity, nature of gas ionization, dust extinction, and star formation rate through emission line fluxes. We leverage the exceptional brightness and proximity of this source to place deep constraints on the repetition of FRB 20250316A and find that it is inconsistent with all well-studied repeaters given the nondetection of bursts at lower spectral energies. We explore the implications of a measured offset of 190 ± 20 pc from the center of the nearest star formation region in the context of progenitor channels. FRB 20250316A marks the beginning of an era of routine localizations for one-off FRBs on tens of milliarcseconds scales, enabling large-scale studies of their local environments.

Författare

Thomas C. Abbott

McGill University

Daniel Amouyal

McGill University

B. Andersen

McGill University

Shion E. Andrew

Massachusetts Institute of Technology (MIT)

K. Bandura

West Virginia University

M. Bhardwaj

Carnegie Mellon University (CMU)

Kalyani Bhopi

West Virginia University

Yash Bhusare

National Centre for Radio Astrophysics India

C. Brar

National Research Council Canada

Alice Cai

Northwestern University

T. Cassanelli

Universidad de Chile (UCH)

S. Chatterjee

Cornell University

J. F. Cliche

McGill University

Amanda M. Cook

Anton Pannekoek Institute for Astronomy

McGill University

Alice P. Curtin

McGill University

Evan Davies-Velie

McGill University

M. Dobbs

McGill University

Fengqiu Adam Dong

National Radio Astronomy Observatory

Yuxin Dong

Northwestern University

Gwendolyn Eadie

University of Toronto

Tarraneh Eftekhari

Northwestern University

Wen Fai Fong

Northwestern University

E. Fonseca

West Virginia University

B. Gaensler

University of Toronto

University of California

Nina Gusinskaia

Netherlands Institute for Radio Astronomy (ASTRON)

Anton Pannekoek Institute for Astronomy

J. W. T. Hessels

Netherlands Institute for Radio Astronomy (ASTRON)

McGill University

Anton Pannekoek Institute for Astronomy

Danté M. Hewitt

Anton Pannekoek Institute for Astronomy

Jeff Huang

McGill University

Naman Jain

McGill University

Ronniy C. Joseph

McGill University

Lordrick Kahinga

University of California

V. M. Kaspi

McGill University

Afrasiyab Khan

McGill University

Bikash Kharel

West Virginia University

Adam E. Lanman

Massachusetts Institute of Technology (MIT)

Magnus L’Argent

McGill University

Mattias Lazda

University of Toronto

C. Leung

University of California

Miller Institute for Basic Research in Science

Robert Main

McGill University

Lluis Mas-Ribas

University of California

Kiyoshi W. Masui

Massachusetts Institute of Technology (MIT)

Kyle McGregor

McGill University

R. Mckinven

McGill University

J. Mena-Parra

University of Toronto

D. Michilli

Laboratoire d'Astrophysique de Marseille

Nicole Mulyk

McGill University

Mason Ng

McGill University

K. Nimmo

Massachusetts Institute of Technology (MIT)

Ayush Pandhi

University of Toronto

Swarali Shivraj Patil

West Virginia University

A. B. Pearlman

McGill University

U. L. Pen

Perimeter Institute for Theoretical Physics

University of Toronto

Institut canadien d'astrophysique théorique

Canadian Institute for Advanced Research

Academia Sinica

Z. Pleunis

Anton Pannekoek Institute for Astronomy

Netherlands Institute for Radio Astronomy (ASTRON)

J. Xavier Prochaska

National Astronomical Observatory of Japan

University of Tokyo

University of California

M. Rafiei-Ravandi

McGill University

S. M. Ransom

National Radio Astronomy Observatory

Gurman Sachdeva

University of Toronto

Mawson W. Sammons

McGill University

Ketan R. Sand

McGill University

P. Scholz

University of Toronto

York University

Vishwangi Shah

McGill University

K. Shin

Massachusetts Institute of Technology (MIT)

S. R. Siegel

Perimeter Institute for Theoretical Physics

McGill University

Sunil Simha

University of Chicago

Northwestern University

K. M. Smith

Perimeter Institute for Theoretical Physics

Ingrid Stairs

University of British Columbia (UBC)

David C. Stenning

Simon Fraser University

H. Wang

Massachusetts Institute of Technology (MIT)

Thomas Boles

Coddenham Observatory

I. Cognard

Station de Radioastronomie de Nançay

Universite d'Orleans

T. J. Dijkema

Netherlands Institute for Radio Astronomy (ASTRON)

Alexei V. Filippenko

University of California

M. P. Gawroński

Uniwersytet Mikolaja Kopernika

W. Herrmann

Astropeiler Stockert e.V.

Charles D. Kilpatrick

Northwestern University

Franz Kirsten

Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium

Netherlands Institute for Radio Astronomy (ASTRON)

Shawn Knabel

University of California

O. S. Ould-Boukattine

Netherlands Institute for Radio Astronomy (ASTRON)

Anton Pannekoek Institute for Astronomy

Hadrien Paugnat

University of California

W. Puchalska

Uniwersytet Mikolaja Kopernika

William Sheu

University of California

Aswin Suresh

Northwestern University

Aaron Tohuvavohu

California Institute of Technology (Caltech)

Tommaso Treu

University of California

Wei Kang Zheng

University of California

Astrophysical Journal Letters

2041-8205 (ISSN) 2041-8213 (eISSN)

Vol. 989 2 L48

Onsala rymdobservatorium infrastruktur

Vetenskapsrådet (VR) (2017-00648), 2018-01-01 -- 2021-12-31.

Ämneskategorier (SSIF 2025)

Astronomi, astrofysik och kosmologi

Meteorologi och atmosfärsvetenskap

DOI

10.3847/2041-8213/adf62f

Mer information

Senast uppdaterat

2025-08-29