PINT: Maximum-likelihood Estimation of Pulsar Timing Noise Parameters

被引：0

作者：

Susobhanan, Abhimanyu ^{[1
,2
]}

Kaplan, David L. ^{[2
]}

Archibald, Anne M. ^{[3
]}

Luo, Jing ^{[4
]}

Ray, Paul S. ^{[5
]}

Pennucci, Timothy T. ^{[6
]}

Ransom, Scott M. ^{[7
]}

Agazie, Gabriella ^{[2
]}

Fiore, William ^{[8
,9
]}

Larsen, Bjorn ^{[10
]}

O'Neill, Patrick ^{[3
]}

van Haasteren, Rutger ^{[1
]}

Anumarlapudi, Akash ^{[2
]}

Bachetti, Matteo ^{[11
]}

Bhakta, Deven ^{[12
]}

Champagne, Chloe A. ^{[13
]}

Cromartie, H. Thankful ^{[14
]}

Demorest, Paul B. ^{[15
]}

Jennings, Ross J. ^{[8
,9
]}

Kerr, Matthew ^{[5
]}

Levina, Sasha ^{[16
]}

McEwen, Alexander ^{[2
]}

Shapiro-Albert, Brent J. ^{[8
,9
,17
]}

Swiggum, Joseph K. ^{[18
]}

机构：

[1] Leibniz Univ Hannover, Max Planck Inst Gravitat phys, Albert Einstein Inst, Callinstr 38, D-30167 Hannover, Germany

[2] Univ Wisconsin, Ctr Gravitat Cosmol & Astrophys, Dept Phys, POB 413, Milwaukee, WI 53201 USA

[3] Newcastle Univ, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[4] Univ Toronto, Toronto, ON M5S 3H4, Canada

[5] Naval Res Lab, Space Sci Div, Washington, DC 20375 USA

[6] Eotvos Lorand Univ, Inst Phys & Astron, Pazmany Ps 1-A, H-1117 Budapest, Hungary

[7] Natl Radio Astron Observ, Cambridge, MA 22903 USA

[8] West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA

[9] West Virginia Univ, Morgantown, VA 26505 USA

[10] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[11] Ist Nazl Astrofis, Osservatorio Astron Cagliari, via Sci 5, I-09047 Selargius, CA, Italy

[12] Univ Virginia, Dept Astron, POB 400325, Charlottesville, VA 22904 USA

[13] Vanderbilt Univ, Nashville, TN 37235 USA

[14] Natl Acad Sci, Natl Res Council, Washington, DC 20001 USA

[15] Natl Radio Astron Observ, Cambridge, MA 87801 USA

[16] Johns Hopkins Univ, William H Miller III Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA

[17] Giant Army, 915A 17th Ave, Seattle, WA 98122 USA

[18] Lafayette Coll, Lafayette, LA 18042 USA

来源：

ASTROPHYSICAL JOURNAL | 2024年 / 971卷 / 02期

基金：

美国国家科学基金会;

关键词：

ARRIVAL-TIME ANALYSIS; RELATIVISTIC GRAVITY; MILLISECOND PULSARS; GENERAL-RELATIVITY; ELECTRON-DENSITY; BINARY PULSARS; SOLAR-SYSTEM; PACKAGE; TESTS; EPHEMERIDES;

D O I：

10.3847/1538-4357/ad59f7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

PINT is a pure-Python framework for high-precision pulsar timing developed on top of widely used and well-tested Python libraries, supporting both interactive and programmatic data analysis workflows. We present a new frequentist framework within PINT to characterize the single-pulsar noise processes present in pulsar timing data sets. This framework enables parameter estimation for both uncorrelated and correlated noise processes, as well as model comparison between different timing and noise models in a computationally inexpensive way. We demonstrate the efficacy of the new framework by applying it to simulated data sets as well as a real data set of PSR B1855+09. We also describe the new features implemented in PINT since it was first described in the literature.

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页数：20

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