Sherpa: An Open-source Python Fitting Package

Aneta Siemiginowska; Douglas Burke; Hans Moritz Günther; Nicholas P. Lee; Warren McLaughlin; David A. Principe; Harlan Cheer; Antonella Fruscione; Omar Laurino; Jonathan McDowell; Marie Terrell

doi:10.3847/1538-4365/ad7bab

The Astrophysical Journal Supplement Series (Jan 2024)

Sherpa: An Open-source Python Fitting Package

Aneta Siemiginowska,
Douglas Burke,
Hans Moritz Günther,
Nicholas P. Lee,
Warren McLaughlin,
David A. Principe,
Harlan Cheer,
Antonella Fruscione,
Omar Laurino,
Jonathan McDowell,
Marie Terrell

Affiliations

Aneta Siemiginowska: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Douglas Burke: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Hans Moritz Günther: ORCiD; MIT Kavli Institute for Astrophysics and Space Research , Massachusetts Institute of Technology, Cambridge, MA, USA
Nicholas P. Lee: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Warren McLaughlin: Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
David A. Principe: ORCiD; MIT Kavli Institute for Astrophysics and Space Research , Massachusetts Institute of Technology, Cambridge, MA, USA
Harlan Cheer: Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Antonella Fruscione: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Omar Laurino: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Jonathan McDowell: ORCiD; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]
Marie Terrell: Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden St., Cambridge, MA 02138, USA ; [email protected]

DOI: https://doi.org/10.3847/1538-4365/ad7bab
Journal volume & issue: Vol. 274, no. 2
p. 43

Abstract

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We present an overview of Sherpa, an open-source Python project, and discuss its development history, broad design concepts, and capabilities. Sherpa contains powerful tools for combining parametric models into complex expressions that can be fit to data using a variety of statistics and optimization methods. It is easily extensible to include user-defined models, statistics, and optimization methods. It provides a high-level user interface for interactive data analysis, such as within a Jupyter notebook, and it can also be used as a library component, providing fitting and modeling capabilities to an application. We include a few examples of Sherpa applications to multiwavelength astronomical data.

Astronomy software

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

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