Modeling the Morphology of Fast Radio Bursts and Radio Pulsars with fitburst

E. Fonseca; Z. Pleunis; D. Breitman; K. R. Sand; B. Kharel; P. J. Boyle; C. Brar; U. Giri; V. M. Kaspi; K. W. Masui; B. W. Meyers; C. Patel; P. Scholz; K. Smith

doi:10.3847/1538-4365/ad27d6

The Astrophysical Journal Supplement Series (Jan 2024)

Modeling the Morphology of Fast Radio Bursts and Radio Pulsars with fitburst

E. Fonseca,
Z. Pleunis,
D. Breitman,
K. R. Sand,
B. Kharel,
P. J. Boyle,
C. Brar,
U. Giri,
V. M. Kaspi,
K. W. Masui,
B. W. Meyers,
C. Patel,
P. Scholz,
K. Smith

Affiliations

E. Fonseca: ORCiD; Department of Physics and Astronomy, West Virginia University , Morgantown, WV 26506-6315, USA; Center for Gravitational Waves and Cosmology , Chestnut Ridge Research Building, Morgantown, WV 26505, USA
Z. Pleunis: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON, M5S 3H4, Canada
D. Breitman: ORCiD; Scuola Normale Superiore , Piazza dei Cavalieri 7, I-56126 Pisa, Italy
K. R. Sand: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC, H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC, H3A 2A7, Canada
B. Kharel: ORCiD; Department of Physics and Astronomy, West Virginia University , Morgantown, WV 26506-6315, USA; Center for Gravitational Waves and Cosmology , Chestnut Ridge Research Building, Morgantown, WV 26505, USA
P. J. Boyle: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC, H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC, H3A 2A7, Canada
C. Brar: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC, H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC, H3A 2A7, Canada
U. Giri: ORCiD; Department of Physics, University of Wisconsin-Madison , 1150 University Avenue, Madison, WI 53706, USA
V. M. Kaspi: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC, H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC, H3A 2A7, Canada
K. W. Masui: ORCiD; MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
B. W. Meyers: ORCiD; International Centre for Radio Astronomy Research, Curtin University , Bentley, WA 6102, Australia
C. Patel: ORCiD; Department of Physics, McGill University , 3600 rue University, Montréal, QC, H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC, H3A 2A7, Canada
P. Scholz: ORCiD; Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON, M5S 3H4, Canada; Department of Physics and Astronomy, York University , 4700 Keele Street, Toronto, ON, MJ3 1P3, Canada
K. Smith: ORCiD; Perimeter Institute for Theoretical Physics , 31 Caroline Street N., Waterloo, ON, N25 2YL, Canada

DOI: https://doi.org/10.3847/1538-4365/ad27d6
Journal volume & issue: Vol. 271, no. 2
p. 49

Abstract

Read online

We present a framework for modeling astrophysical pulses from radio pulsars and fast radio bursts (FRBs). This framework, called fitburst , generates synthetic representations of dynamic spectra that are functions of several physical and heuristic parameters; the heuristic parameters can nonetheless accommodate a vast range of distributions in spectral energy. fitburst is designed to optimize the modeling of features induced by effects that are intrinsic and extrinsic to the emission mechanism, including the magnitude and frequency dependence of pulse dispersion and scatter broadening. fitburst removes intrachannel smearing through two-dimensional upsampling, and can account for phase-wrapping of “folded” signals that are typically acquired during pulsar-timing observations. We demonstrate the effectiveness of fitburst in modeling data containing pulsars and FRBs observed with the Canadian Hydrogen Intensity Mapping Experiment telescope.

Published in The Astrophysical Journal Supplement Series

ISSN: 0067-0049 (Print); 1538-4365 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0067-0049

About the journal

Abstract

Keywords