9 research outputs found
gamma-sky.net: Portal to the Gamma-Ray Sky
Gamma-sky.net is a novel interactive website designed for exploring the
gamma-ray sky. The Map View portion of the site is powered by the Aladin Lite
sky atlas, providing a scalable survey image tesselated onto a
three-dimensional sphere. The map allows for interactive pan and zoom
navigation as well as search queries by sky position or object name. The
default image overlay shows the gamma-ray sky observed by the Fermi-LAT
gamma-ray space telescope. Other survey images (e.g. Planck microwave images in
low/high frequency bands, ROSAT X-ray image) are available for comparison with
the gamma-ray data. Sources from major gamma-ray source catalogs of interest
(Fermi-LAT 2FHL, 3FGL and a TeV source catalog) are overlaid over the sky map
as markers. Clicking on a given source shows basic information in a popup, and
detailed pages for every source are available via the Catalog View component of
the website, including information such as source classification, spectrum and
light-curve plots, and literature references.
We intend for gamma-sky.net to be applicable for both professional
astronomers as well as the general public. The website started in early June
2016 and is being developed as an open-source, open data project on GitHub
(https://github.com/gammapy/gamma-sky). We plan to extend it to display more
gamma-ray and multi-wavelength data. Feedback and contributions are very
welcome!Comment: 6th International Meeting on High Energy Gamma-Ray Astronomy,
Heidelberg, 2016. 6 pages, 5 figures. Website: http://gamma-sky.ne
Gammapy - A prototype for the CTA science tools
International audienceGammapy is a Python package for high-level gamma-ray data analysis built on Numpy, Scipy and Astropy. It enables to analyse gamma-ray data and to create sky images, spectra and lightcurves, from event lists and instrument response information, as to determine the position, morphology and spectra of gamma-ray sources.So far Gammapy has mostly been used to analyse data from H.E.S.S. and Fermi-LAT, and is now being used for the simulation and analysis of observations from the Cherenkov Telescope Array (CTA). We have proposed Gammapy as a prototype for the CTA science tools. This contribution gives an overview of the Gammapy package and shows an analysis application example with simulated CTA data
GammapyVersion 0.19
Gammapy is a community-developed, open-source Python package for gamma-ray astronomy built on Numpy, Scipy and Astropy. It is the core library for the CTA science tools and can also be used to analyse data from existing imaging atmospheric Cherenkov telescopes (IACTs), such as H.E.S.S., MAGIC and VERITAS. It also provides some support for Fermi-LAT and HAWC data analysis