Gammapy: An open-source Python package for gamma-ray astronomy
Axel Donath, Christoph Deil, M. Paz Arribas, Johannes King, Ellis R. Owen, Regis Terrier, I. Reichardt, Jon Harris, R. Buehler, S. Klepser · Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015) · 2016
In the past decade imaging atmospheric Cherenkov telescope arrays such as H.E.S.S., MAGIC, VERITAS, as well as the Fermi-LAT space telescope have provided high quality images and spectra of the γ-ray universe.Currently the γ-ray community is preparing to build the nextgeneration Cherenkov Telecope Array (CTA), which will be operated as an open observatory.Gammapy v0.3 (available at https://github.com/gammapy/gammapyunder the open-source BSD license) is a new in-development Astropy affiliated package for high-level analysis and simulation of astronomical γ-ray data.It is built on the scientific Python stack (Numpy, Scipy, matplotlib and scikit-image) and makes use of other open-source astronomy packages such as Astropy, Sherpa and Naima to provide a flexible set of tools for γ-ray astronomers.We present an overview of the Gammapy scope, development workflow, status, structure, features, application examples and goals.We would like Gammapy to become a community-developed project and a place of collaboration between scientists interested in γ-ray astronomy with Python.