Matthew T. Miles

A Transdimensional Sampling Framework for Pulsar Timing Noise Modeling

Valentina Di Marco, N. Guttman, Matthew T. Miles, Andrew Zic et autres

Abstract A careful characterisation of the noise processes in pulsar timing data is a prerequisite for pulsar timing array experiments. While single-pulsar noise analyses are crucial for both gravitational-wave searches and astrophysical studies, they are often computationally intensive and rely on running …

au, us (code pays fourni par la source)

Interplanetary scintillation-informed heliospheric modelling for the MeerKAT Pulsar Timing Array 4.5 yr data set

Saurav Mishra, Daniel J. Reardon, Andrew Zic, Matthew Bailes et autres

ABSTRACT Heliospheric density variations impart delays on pulse times of arrivals from millisecond pulsars. Improper modelling of these variations may affect gravitational wave detection and characterisation by pulsar timing arrays (PTAs). Currently, PTAs typically employ a time-varying, spherically symmetric heliosphere model, which …

au, us, it, gb, de (code pays fourni par la source)

Interplanetary scintillation-informed heliospheric modelling for the MeerKAT Pulsar Timing Array 4.5 yr dataset

Saurav Mishra, Daniel J. Reardon, Andrew Zic, Matthew Bailes et autres

Heliospheric density variations impart delays on pulse times of arrivals from millisecond pulsars. Improper modelling of these variations may affect gravitational wave detection and characterisation by pulsar timing arrays (PTAs). Currently, PTAs typically employ a time-varying, spherically symmetric heliosphere model, which does …

Software for "A transdimensional sampling framework for pulsar timing noise modelling"

Valentina Di Marco, N. Guttman, Matthew T. Miles, Andrew Zic et autres

A transdimensional sampling framework for pulsar timing noise modelling This is a transdimensional Bayesian inference framework for single-pulsar noise analysis, built on the Bilby library. It flexibly models a range of noise processes, including radiometer noise, pulse-phase jitter, intrinsic red noise, and …

au (code pays fourni par la source)

Software for "A transdimensional sampling framework for pulsar timing noise modelling"

Valentina Di Marco, N. Guttman, Matthew T. Miles, Andrew Zic et autres

A transdimensional sampling framework for pulsar timing noise modelling This is a transdimensional Bayesian inference framework for single-pulsar noise analysis, built on the Bilby library. It flexibly models a range of noise processes, including radiometer noise, pulse-phase jitter, intrinsic red noise, and …

au (code pays fourni par la source)

Narrowband Searches for Continuous Gravitational Waves from known Pulsars in the First Two Parts of the Fourth LIGO–Virgo–KAGRA Observing Run

Adrian Abac, I. Abouelfettouh, F. Acernese, K. Ackley et autres

Abstract Rotating nonaxisymmetric neutron stars (NSs) are promising sources for continuous gravitational waves (CWs). CWs may, if detected, inform us about the internal structure and equation of state of NSs. Here, we present a narrowband search for CWs from known pulsars, for …

de, it, gb, au, us, in, fr, be, br, jp, nl, mx, kr (code pays fourni par la source)

The NANOGrav 15 yr Data Set: Impacts of Customized Chromatic Noise Models on Gravitational Wave Analyses

Nikita Agarwal, Gabriella Agazie, Alessandra Amosso, Akash Anumarlapudi et autres

We report updated nHz gravitational wave (GW) significance, characterization, and interpretations using the customized chromatic-noise models (CNMs) developed in Larsen, Baier et al. (2026). for the NANOGrav 15-year data set. We find increased evidence for the Hellings-Downs (HD) correlation signature of the …

The NANOGrav 15 yr Data Set: Customized Chromatic Noise Models

Bjorn Larsen, Jeremy G. Baier, Daniel J Oliver, Kalista Wayt et autres

Pulsar timing arrays conduct low-frequency gravitational wave searches, which require comprehensive accounting of various noise sources to achieve robust results. Interstellar propagation effects (e.g., dispersion and scattering) are especially complex noise sources, introducing chromatic delays that can reduce sensitivity to gravitational waves …

The NANOGrav 15 yr Data Set: Impacts of Customized Chromatic Noise Models on Gravitational Wave Analyses

Nikita Agarwal, Gabriella Agazie, Alessandra Amosso, Akash Anumarlapudi et autres

We report updated nHz gravitational wave (GW) significance, characterization, and interpretations using the customized chromatic-noise models (CNMs) developed in Larsen, Baier et al. (2026). for the NANOGrav 15-year data set. We find increased evidence for the Hellings-Downs (HD) correlation signature of the …

us, de, gb, au, gr, ca, pt (code pays fourni par la source)

The NANOGrav 15 yr Dataset: Customized Chromatic Noise Models

Bjorn Larsen, J. G. Baier, Daniel J Oliver, K. E. Wayt et autres

Abstract Pulsar timing arrays (PTAs) conduct low-frequency gravitational-wave (GW) searches, which require comprehensive accounting of various noise sources to achieve robust results. Interstellar propagation effects (e.g., dispersion and scattering) are especially complex noise sources, introducing chromatic delays that can reduce sensitivity to …

us, gb, ca, au, hu, pr, in (code pays fourni par la source)

A transdimensional sampling framework for pulsar timing noise modelling

Valentina Di Marco, Nir Guttman, Matthew T. Miles, Andrew Zic et autres

A careful characterisation of the noise processes in pulsar timing data is a prerequisite for pulsar timing array experiments. While single-pulsar noise analyses are crucial for both gravitational-wave searches and astrophysical studies, they are often computationally intensive and rely on running and …

A transdimensional sampling framework for pulsar timing noise modelling

Valentina Di Marco, Nir Guttman, Matthew T. Miles, Andrew Zic et autres

A careful characterisation of the noise processes in pulsar timing data is a prerequisite for pulsar timing array experiments. While single-pulsar noise analyses are crucial for both gravitational-wave searches and astrophysical studies, they are often computationally intensive and rely on running and …

au (code pays fourni par la source)