The NANOGrav 12.5-Year Data Set: Dispersion Measure Misestimations with Varying Bandwidths

The NANOGrav 12.5-Year Data Set: Dispersion Measure Misestimations with Varying Bandwidths

Noise characterization for pulsar-timing applications accounts for interstellar dispersion by assuming a known frequency dependence of the delay it introduces in the times of arrival (TOAs). However, calculations of this delay suffer from misestimations due to other chromatic effects in the observat...

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Bibliographic Details
Main Authors: Sophia Valentina Sosa Fiscella, Michael T. Lam, Zaven Arzoumanian, Harsha Blumer, Paul R. Brook, H. Thankful Cromartie, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Justin A. Ellis, Robert D. Ferdman, Elizabeth C. Ferrara, Emmanuel Fonseca, Nate Garver-Daniels, Peter A. Gentile, Deborah C. Good, Megan L. Jones, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Maura A. McLaughlin, Cherry Ng, David J. Nice, Timothy T. Pennucci, Nihan S. Pol, Scott M. Ransom, Renée Spiewak, Ingrid H. Stairs, Kevin Stovall, Joseph K. Swiggum, Sarah J. Vigeland
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal
Subjects:
Millisecond pulsars
Pulsars
Interstellar medium
Gravitational waves
Pulsar timing method
Timing variation methods
Online Access:https://doi.org/10.3847/1538-4357/ad2858

Internet

https://doi.org/10.3847/1538-4357/ad2858

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