The cosipy library: COSI's high-level analysis software
Abstract
The Compton Spectrometer and Imager (COSI) is a selected Small Explorer (SMEX) mission launching in 2027. It consists of a large field-of-view Compton telescope that will probe with increased sensitivity the under-explored MeV gamma-ray sky (0.2-5 MeV). We will present the current status of cosipy, a Python library that will perform spectral and polarization fits, image deconvolution, and all high-level analysis tasks required by COSI's broad science goals: uncovering the origin of the Galactic positrons, mapping the sites of Galactic nucleosynthesis, improving our models of the jet and emission mechanism of gamma-ray bursts (GRBs) and active galactic nuclei (AGNs), and detecting and localizing gravitational wave and neutrino sources. The cosipy library builds on the experience gained during the COSI balloon campaigns and will bring the analysis of data in the Compton regime to a modern open-source likelihood-based code, capable of performing coherent joint fits with other instruments using the Multi-Mission Maximum Likelihood framework (3ML). In this contribution, we will also discuss our plans to receive feedback from the community by having yearly software releases accompanied by publicly-available data challenges.
Cite
@article{arxiv.2308.11436,
title = {The cosipy library: COSI's high-level analysis software},
author = {Israel Martinez-Castellanos and Savitri Gallego and Chien-You Huang and Chris Karwin and Carolyn Kierans and Jan Peter Lommler and Saurabh Mittal and Michela Negro and Eliza Neights and Sean N. Pike and Yong Sheng and Thomas Siegert and Hiroki Yoneda and Andreas Zoglauer and John A. Tomsick and Steven E. Boggs and Dieter Hartmann and Marco Ajello and Eric Burns and Chris Fryer and Alexander Lowell and Julien Malzac and Jarred Roberts and Pascal Saint-Hilaire and Albert Shih and Clio Sleator and Tadayuki Takahashi and Fabrizio Tavecchio and Eric Wulf and Jacqueline Beechert and Hannah Gulick and Alyson Joens and Hadar Lazar and Juan Carlos Martinez Oliveros and Shigeki Matsumoto and Tom Melia and Mark Amman and Dhruv Bal and Peter von Ballmoos and Hugh Bates and Markus Böttcher and Andrea Bulgarelli and Elisabetta Cavazzuti and Hsiang-Kuang Chang and Claire Chen and Che-Yen Chu and Alex Ciabattoni and Luigi Costamante and Lente Dreyer and Valentina Fioretti and Francesco Fenu and Giancarlo Ghirlanda and Eric Grove and Pierre Jean and Nikita Khatiya and Jürgen Knödlseder and Martin Krause and Mark Leising and Tiffany R. Lewis and Lea Marcotulli and Samer Al Nussirat and Kazuhiro Nakazawa and Uwe Oberlack and David Palmore and Gabriele Panebianco and Nicolo Parmiggiani and Tyler Parsotan and Field Rogers and Hester Schutte and Alan P. Smale and Jacob Smith and Aaron Trigg and Tonia Venters and Yu Watanabe and Haocheng Zhang},
journal= {arXiv preprint arXiv:2308.11436},
year = {2023}
}