Changelog

This is the changelog for Gammapy. For now we use a one-line description of every pull request, roughly in chronological order.

We don’t list every pull request. Maintenance and cleanup changes (e.g. to update astropy-helpers or fix the docs build) are not of interest to users and are not listed here.

After the 1.0 release we will keep a more detailed changelog for users.

A complete list of Gammapy contributors is at Contributors.

1.0 (unreleased)

Summary

For plans and progress for Gammapy 1.0, see https://github.com/gammapy/gammapy/milestones/1.0

0.7 (unreleased)

Summary

For plans and progress for Gammapy 0.7, see https://github.com/gammapy/gammapy/milestones/0.7

0.6 (April 28, 2017)

Summary

• Released on April 28, 2017 (Gammapy 0.6 on PyPI)
• 14 contributors (5 new)
• 5 months of work (from November 22, 2016 to April 28, 2017)
• 147 pull requests (not all listed below)

What’s new?

• Release and installation

  • Until now, we had a roughly bi-yearly release cycle for Gammapy. Starting now, we will make stable releases more often, to ship features and fixes to Gammapy users more quickly.
  • Gammapy 0.6 requires Python 2.7 or 3.4+, Numpy 1.8+, Scipy 0.15+, Astropy 1.3+, Sherpa 4.9.0+ . Most things will still work with older Astropy and Sherpa, but we dropped testing for older versions from our continuous integration.
  • Gammapy is now available via Macports, a package manager for Mac OS (port install py35-gammapy)

• Documentation

  • Added many tutorials as Jupyter notebooks (linked to from the docs front-page)
  • Misc docs improvements and new getting started notebooks

• For CTA

  • Better support for CTA IRFs
  • A notebook showing how to analyse some simulated CTA data (preliminary files from first data challenge)
  • Better support and documentation for CTA will be the focus of the next release (0.7), coming in a few weeks.

• For Fermi-LAT

  • Introduced a reference dataset: https://github.com/gammapy/gammapy-fermi-lat-data
  • Added convenience class to work with Fermi-LAT datasets

• gammapy.catalog

  • Add support for gamma-cat, an open data collection and source catalog for gamma-ray astronomy (https://github.com/gammapy/gamma-cat)
  • Access to more Fermi-LAT catalogs (1FHL, 2FHL, 3FHL)

• gammapy.spectrum

  • Better flux point class
  • Add flux point SED fitter
  • EBL-absorbed spectral models
  • Improved spectrum simulation class

• gammapy.image

  • Add image radial and box profiles
  • Add adaptive ring background estimation
  • Add adaptive image smooth algorithm

• gammapy.cube

  • Add prototype for 3D analysis of IACT data (work in progress)

• gammapy.time

  • Add prototype lightcurve estimator for IACT data (work in progress)

• gammapy.irf

  • Many IRF classes now rewritten to use the generic NDDataArray and axis classes
  • Better handling of energy dispersion

• gammapy.utils

  • Add gammapy.utils.modeling (work in progress)
  • Add gammapy.utils.sherpa (generic interface to sherpa for fitting, with models and likelihood function defined in Gammapy) (work in progress)

• Many small bugfixes and improvements throughout the codebase and documentation

Contributors:

• Arjun Voruganti (new)
• Arpit Gogia (new)
• Axel Donath
• Brigitta Sipocz
• Christoph Deil
• Dirk Lennarz
• Fabio Acero (new)
• Johannes King
• Julien Lefaucheur
• Lars Mohrmann (new)
• Léa Jouvin
• Nachiketa Chakraborty
• Régis Terrier
• Zé Vinícius (new)

Pull requests

This list is incomplete. Small improvements and bug fixes are not listed here.

See the complete Gammapy 0.6 merged pull requests list on Github.

• [#1006] Add possibilty to skip runs based on alpha in SpectrumExtraction (Johannes King)
• [#1002] Containment correction in SpectrumObservation via AREASCAL (Johannes King)
• [#1001] Add SpectrumAnalysisIACT (Johannes King)
• [#997] Add compute_chisq method to lightcurve class (Nachiketa Chakraborty)
• [#994] Improve Gammapy installation docs (Christoph Deil)
• [#988] Add spectral model absorbed by EBL that can be fit (Julien Lefaucheur)
• [#985] Improve error methods on spectral models (Axel Donath)
• [#979] Add flux point fitter class (Axel Donath)
• [#976] Fixes to Galactic population simulation (Christoph Deil)
• [#975] Add PLSuperExpCutoff3FGL spectral model (Axel Donath)
• [#966] Remove SkyMask (merge with SkyImage) (Christoph Deil)
• [#950] Add light curve computation (Julien Lefaucheur)
• [#933] Change IRF plotting from imshow to pcolormesh (Axel Donath)
• [#932] Change NDDataArray default_interp_kwargs to extrapolate (Johannes King)
• [#919] Fix Double plot issue in notebooks and improve events.peek() (Fabio Acero)
• [#911] Improve EnergyDispersion2D get_response and tests (Régis Terrier)
• [#906] Fix catalog getitem to work with numpy int index (Zé Vinícius)
• [#898] Add printout for 3FGL catalog objects (Arjun Voruganti)
• [#893] Add Fermi-LAT 3FGL catalog object lightcurve property (Arpit Gogia)
• [#888] Improve CTA IRF and simulation classes (point-like analysis) (Julien Lefaucheur)
• [#885] Improve spectral model uncertainty handling (Axel Donath)
• [#884] Improve BinnedDataAxis handling of lo / hi binning (Johannes King)
• [#883] Improve spectrum docs page (Johannes King)
• [#881] Add support for observations with different energy binning in SpectrumFit (Lars Mohrmann)
• [#875] Add CTA spectrum simulation example (Julien Lefaucheur)
• [#872] Add SED type e2dnde to FluxPoints (Johannes King)
• [#871] Add Parameter class to SpectralModel (Johannes King)
• [#870] Clean up docstrings in background sub-package (Arpit Gogia)
• [#868] Add Fermi-LAT 3FHL catalogue (Julien Lefaucheur)
• [#865] Add Fermi basic image estimator (Axel Donath)
• [#864] Improve edisp.apply to support different true energy axes (Johannes King)
• [#859] Remove old image_profile function (Axel Donath)
• [#858] Fix Fermi catalog flux point upper limits (Axel Donath)
• [#855] Add Fermi-LAT 1FHL catalogue (Julien Lefaucheur)
• [#854] Add Fermi-LAT dataset class (Axel Donath)
• [#851] Write Macports install docs (Christoph Deil)
• [#847] Fix Sherpa spectrum OGIP file issue (Régis Terrier and Johannes King)
• [#842] Add AbsorbedSpectralModel and improve CTA IRF class (Julien Lefaucheur)
• [#840] Fix energy binning issue in cube pipe (Léa Jouvin)
• [#837] Fix containment fraction issue for table PSF (Léa Jouvin)
• [#836] Fix spectrum observation write issue (Léa Jouvin)
• [#835] Add image profile estimator class (Axel Donath)
• [#834] Bump to require Astropy v1.3 (Christoph Deil)
• [#833] Add image profile class (Axel Donath)
• [#832] Improve NDDataArray (use composition, not inheritance) (Johannes King)
• [#831] Add CTA Sensitivity class and plot improvements (Julien Lefaucheur)
• [#830] Add gammapy.utils.modeling and GammaCat to XML (Christoph Deil)
• [#827] Add energy dispersion for 3D spectral analysis (Léa Jouvin)
• [#826] Add sky cube computation for IACT data (Léa Jouvin)
• [#825] Update astropy-helpers to v1.3 (Brigitta Sipocz)
• [#824] Add XSPEC table absorption model to spectral table model (Julien Lefaucheur)
• [#820] Add morphology models for gamma-cat sources (Axel Donath)
• [#816] Add class to access CTA point-like responses (Julien Lefaucheur)
• [#814] Remove old flux point classes (Axel Donath)
• [#813] Improve Feldman Cousins code (Dirk Lennarz)
• [#812] Improve differential flux point computation code (Axel Donath)
• [#811] Adapt catalogs to new flux point class (Axel Donath)
• [#810] Add new flux point class (Axel Donath)
• [#798] Add Fvar variability measure for light curves (Nachiketa Chakraborty)
• [#796] Improve LogEnergyAxis object (Axel Donath)
• [#797] Improve WStat implementation (Johannes King)
• [#793] Add GammaCat source catalog (Axel Donath)
• [#791] Misc fixes to spectrum fitting code (Johannes King)
• [#784] Improve SkyCube exposure computation (Léa Jouvin)

0.5 (November 22, 2016)

Summary

• Released on November 22, 2016 (Gammapy 0.5 on PyPI)
• 12 contributors (5 new)
• 7 months of work (from April 20, 2016 to November 22, 2016)
• 184 pull requests (not all listed below)
• Requires Python 2.7 or 3.4+, Numpy 1.8+, Scipy 0.15+, Astropy 1.2+, Sherpa 4.8.2+

What’s new?

• Tutorial-style getting started documentation as Jupyter notebooks
• Removed gammapy.regions and have switched to the move complete and powerful regions package (planned to be added to the Astropy core within the next year).
• gammapy.spectrum - Many 1-dimensional spectrum analysis improvements (e.g. spectral point computation)
• gammapy.image - Many SkyImage improvements, adaptive ring background estimation, asmooth algorithm
• gammapy.detect - CWT and TS map improvements
• gammapy.time - A lightcurve class and variability test
• gammapy.irf - Many improvements to IRF classes, especially the PSF classes.
• Many improved tests and test coverage

Contributors:

• Axel Donath
• Brigitta Sipocz
• Christoph Deil
• Domenico Tiziani (new)
• Helen Poon (new)
• Johannes King
• Julien Lefaucheur (new)
• Léa Jouvin
• Matthew Wood (new)
• Nachiketa Chakraborty (new)
• Olga Vorokh
• Régis Terrier

Pull requests

This list is incomplete. Small improvements and bug fixes are not listed here.

See the complete Gammapy 0.5 merged pull requests list on Github.

• [#790] Add powerlaw energy flux integral for gamma=2 (Axel Donath)
• [#789] Fix Wstat (Johannes King)
• [#783] Add PHA type II file I/O to SpectrumObservationList (Johannes King)
• [#778] Fix Gauss PSF energy bin issue (Léa Jouvin)
• [#777] Rewrite crab spectrum as class (Axel Donath)
• [#774] Add skyimage smooth method (Axel Donath)
• [#772] Stack EDISP for a set of observations (Léa Jouvin)
• [#767] Improve PSF checker and add a test (Christoph Deil)
• [#766] Improve SkyCube convolution and npred computation (Axel Donath)
• [#763] Add TablePSFChecker (Domenico Tiziani)
• [#762] Add IRFStacker class (Léa Jouvin)
• [#759] Improve SkyCube energy axes (Axel Donath)
• [#754] Change EventList from Table subclass to attribute (Christoph Deil)
• [#753] Improve SkyCube class (Axel Donath)
• [#746] Add image asmooth algorithm (Axel Donath)
• [#740] Add SpectrumObservationStacker (Johannes King)
• [#739] Improve kernel background estimator (Axel Donath)
• [#738] Fix reflected region pixel origin issue (Léa Jouvin)
• [#733] Add spectral table model (Julien Lefaucheur)
• [#731] Add energy dispersion RMF integration (Léa Jouvin)
• [#719] Add adaptive ring background estimation (Axel Donath)
• [#713] Improve ring background estimation (Axel Donath)
• [#710] Misc image and cube cleanup (Christoph Deil)
• [#709] Spectrum energy grouping (Christoph Deil)
• [#679] Add flux point computation method (Johannes King)
• [#677] Fermi 3FGL and 2FHL spectrum plotting (Axel Donath)
• [#661] Improve continuous wavelet transform (Olga Vorokh)
• [#660] Add Fermipy sky image code to Gammapy (Matthew Wood)
• [#653] Add up- and downsampling to SkyImage (Axel Donath)
• [#649] Change to astropy regions package (Christoph Deil)
• [#648] Add class to load CTA IRFs (Julien Lefaucheur)
• [#647] Add SpectrumSimulation class (Johannes King)
• [#641] Add ECPL model, energy flux and integration methods (Axel Donath)
• [#640] Remove pyfact (Christoph Deil)
• [#635] Fix TS maps low stats handling (Axel Donath)
• [#631] Fix ExclusionMask.distance (Olga Vorokh)
• [#628] Add flux points computation methods (Johannes King)
• [#622] Make gammapy.time great again (Christoph Deil)
• [#599] Move powerlaw utility functions to separate namespace (Christoph Deil)
• [#594] Fix setup.py and docs/conf.py configparser import (Christoph Deil)
• [#593] Remove gammapy/hspec (Christoph Deil)
• [#591] Add spectrum energy flux computation (Axel Donath)
• [#582] Add SkyImageList (Olga Vorokh)
• [#558] Finish change to use gammapy.extern.regions (Johannes King and Christoph Deil)
• [#569] Add detection utilities à la BgStats (Julien Lefaucheur)
• [#565] Add exptest time variability test (Helen Poon)
• [#564] Add LightCurve class (Nachiketa Chakraborty)
• [#559] Add paste, cutout and look_up methods to SkyMap class (Axel Donath)
• [#557] Add spectrum point source containment correction option (Régis Terrier)
• [#556] Add offset-dependent table PSF class (Domenico Tiziani)
• [#549] Add mean PSF computation (Léa Jouvin)
• [#547] Add astropy.regions to gammapy.extern (Johannes King)
• [#546] Add Target class (Johannes King)
• [#545] Add PointingInfo class (Christoph Deil)
• [#544] Improve SkyMap.coordinates (Olga Vorokh)
• [#541] Refactor effective area IRFs to use NDDataArray (Johannes King)
• [#535] Add spectrum and flux points to HGPS catalog (Axel Donath)
• [#531] Add ObservationTableSummary class (Julien Lefaucheur)
• [#530] Update readthedocs links from .org to .io (Brigitta Sipocz)
• [#529] Add data_summary method to DataStore (Johannes King)
• [#527] Add n-dim data base class for gammapy.irf (Johannes King)
• [#526] Add King PSF evaluate and to_table_psf methods (Léa Jouvin)
• [#524] Improve image pipe class (Léa Jouvin)
• [#523] Add Gauss PSF to_table_psf method (Axel Donath)
• [#521] Fix image pipe class (Léa Jouvin)

0.4 (April 20, 2016)

Summary

• Released on April 20, 2016 (Gammapy 0.4 on PyPI)
• 10 contributors (5 new)
• 8 months of work (from August 13, 2015 to April 20, 2016)
• 108 pull requests (not all listed below)
• Requires Python 2.7 or 3.4+, Numpy 1.8+, Scipy 0.15+, Astropy 1.0+, Sherpa 4.8+

What’s new?

• Women are hacking on Gammapy!
• IACT data access via DataStore and HDU index tables
• Radially-symmetric background modeling
• Improved 2-dim image analysis
• 1-dim spectral analysis
• Add sub-package gammapy.cube and start working on 3-dim cube analysis
• Continuous integration testing for Windows on Appveyor added (Windows support for Gammapy is preliminary and incomplete)

Contributors:

• Axel Donath
• Brigitta Sipocz (new)
• Christoph Deil
• Dirk Lennarz (new)
• Johannes King
• Jonathan Harris
• Léa Jouvin (new)
• Luigi Tibaldo (new)
• Manuel Paz Arribas
• Olga Vorokh (new)

Pull requests

This list is incomplete. Small improvements and bug fixes are not listed here.

See the complete Gammapy 0.4 merged pull requests list on Github.

• [#518] Fixes and cleanup for SkyMap (Axel Donath)
• [#511] Add exposure image computation (Léa Jouvin)
• [#510] Add acceptance curve smoothing method (Léa Jouvin)
• [#507] Add Fermi catalog spectrum evaluation and plotting (Johannes King)
• [#506] Improve TS map computation performance (Axel Donath)
• [#503] Add FOV background image modeling (Léa Jouvin)
• [#502] Add DataStore subset method (Johannes King)
• [#487] Add SkyMap class (Axel Donath)
• [#485] Add OffDataBackgroundMaker (Léa Jouvin)
• [#484] Add Sherpa cube analysis prototype (Axel Donath)
• [#481] Add new gammapy.cube sub-package (Axel Donath)
• [#478] Add observation stacking method for spectra (Léa Jouvin and Johannes King)
• [#475] Add tests for TS map image computation (Olga Vorokh)
• [#474] Improve significance image analysis (Axel Donath)
• [#473] Improve tests for HESS data (Johannes King)
• [#462] Misc cleanup (Christoph Deil)
• [#461] Pacman (Léa Jouvin)
• [#459] Add radially symmetric FOV background model (Léa Jouvin)
• [#457] Improve data and observation handling (Christoph Deil)
• [#456] Fix and improvements to TS map tool (Olga Vorokh)
• [#455] Improve IRF interpolation and extrapolation (Christoph Deil)
• [#447] Add King profile PSF class (Christoph Deil)
• [#436] Restructure spectrum package and command line tool (Johannes King)
• [#435] Add info about Gammapy contact points and gammapy-extra (Christoph Deil)
• [#421] Add spectrum fit serialisation code (Johannes King)
• [#403] Improve spectrum analysis (Johannes King)
• [#415] Add EventList plots (Jonathan Harris)
• [#414] Add Windows tests on Appveyor (Christoph Deil)
• [#398] Add function to compute exposure cubes (Luigi Tibaldo)
• [#396] Rewrite spectrum analysis (Johannes King)
• [#395] Fix misc issues with IRF classes (Johannes King)
• [#394] Move some data specs to gamma-astro-data-formats (Christoph Deil)
• [#392] Use external ci-helpers (Brigitta Sipocz)
• [#387] Improve Gammapy catalog query and browser (Christoph Deil)
• [#383] Add EnergyOffsetArray (Léa Jouvin)
• [#379] Add gammapy.region and reflected region computation (Johannes King)
• [#375] Misc cleanup of scripts and docs (Christoph Deil)
• [#371] Improve catalog utils (Christoph Deil)
• [#369] Improve the data management toolbox (Christoph Deil)
• [#367] Add Feldman Cousins algorithm (Dirk Lennarz)
• [#364] Improve catalog classes and gammapy-extra data handling (Jonathan Harris, Christoph Deil)
• [#361] Add gammapy-spectrum-pipe (Johannes King)
• [#359] Add 1D spectrum analysis tool based on gammapy.hspec (Johannes King)
• [#353] Add some scripts and examples (Christoph Deil)
• [#352] Add data management tools (Christoph Deil)
• [#351] Rewrite EnergyDispersion class (Johannes King)
• [#348] Misc code cleanup (Christoph Deil)
• [#347] Add background cube model comparison plot script (Manuel Paz Arribas)
• [#342] Add gammapy-bin-image test (Christoph Deil)
• [#339] Remove PoissonLikelihoodFitter (Christoph Deil)
• [#338] Add example script for cube background models (Manuel Paz Arribas)
• [#337] Fix sherpa morphology fitting script (Axel Donath)
• [#335] Improve background model simulation (Manuel Paz Arribas)
• [#332] Fix TS map boundary handling (Axel Donath)
• [#330] Add EnergyDispersion and CountsSpectrum (Johannes King)
• [#319] Make background cube models (Manuel Paz Arribas)
• [#290] Improve energy handling (Johannes King)

0.3 (August 13, 2015)

Summary

• Released on August 13, 2015 (Gammapy 0.3 on PyPI)
• 9 contributors (5 new)
• 4 months of work (from April 13, 2014 to August 13, 2015)
• 24 pull requests
• Requires Astropy version 1.0 or later.
• On-off likelihood spectral analysis was added in gammapy.hspec, contributed by Régis Terrier and Ignasi Reichardt. It will be refactored and is thus not part of the public API.
• The Gammapy 0.3 release is the basis for an ICRC 2015 poster contribution

Contributors:

• Manuel Paz Arribas
• Christoph Deil
• Axel Donath
• Jonathan Harris (new)
• Johannes King (new)
• Stefan Klepser (new)
• Ignasi Reichardt (new)
• Régis Terrier
• Victor Zabalza (new)

Pull requests

• [#326] Fix Debian install instructions (Victor Zabalza)
• [#318] Set up and document logging for Gammapy (Christoph Deil)
• [#317] Using consistent plotting style in docs (Axel Donath)
• [#312] Add an “About Gammapy” page to the docs (Christoph Deil)
• [#306] Use assert_quantity_allclose from Astropy (Manuel Paz Arribas)
• [#301] Simplified attribute docstrings (Manuel Paz Arribas)
• [#299] Add cube background model class (Manuel Paz Arribas)
• [#296] Add interface to HESS FitSpectrum JSON output (Christoph Deil)
• [#295] Observation table subset selection (Manuel Paz Arribas)
• [#291] Remove gammapy.shower package (Christoph Deil)
• [#289] Add a simple Makefile for Gammapy. (Manuel Paz Arribas)
• [#286] Function to plot Fermi 3FGL light curves (Jonathan Harris)
• [#285] Add infos how to handle times in Gammapy (Christoph Deil)
• [#283] Consistent random number handling and improve sample_sphere (Manuel Paz Arribas)
• [#280] Add new subpackage: gammapy.time (Christoph Deil)
• [#279] Improve SNRcat dataset (Christoph Deil)
• [#278] Document observation tables and improve gammapy.obs (Manuel Paz Arribas)
• [#276] Add EffectiveAreaTable exporter to EffectiveAreaTable2D (Johannes King)
• [#273] Fix TS map header writing and temp file handling (Axel Donath)
• [#264] Add hspec - spectral analysis using Sherpa (Régis Terrier, Ignasi Reichardt, Christoph Deil)
• [#262] Add SNRCat dataset access function (Christoph Deil)
• [#261] Fix spiral arm model bar radius (Stefan Klepser)
• [#260] Add offset-dependent effective area IRF class (Johannes King)
• [#256] EventList class fixes and new features (Christoph Deil)

0.2 (April 13, 2015)

Summary

• Released on April 13, 2015 (Gammapy 0.2 on PyPI)
• 4 contributors (1 new)
• 8 months of work (from August 25, 2014 to April 13, 2015)
• 40 pull requests
• Requires Astropy version 1.0 or later.
• Gammapy now uses Cython, i.e. requires a C compiler for end-users and in addition Cython for developers.

Contributors:

• Manuel Paz Arribas (new)
• Christoph Deil
• Axel Donath
• Ellis Owen

Pull requests

• [#254] Add changelog for Gammapy (Christoph Deil)
• [#252] Implement TS map computation in Cython (Axel Donath)
• [#249] Add data store and observation table classes, improve event list classes (Christoph Deil)
• [#248] Add function to fill acceptance image from curve (Manuel Paz Arribas)
• [#247] Various fixes to image utils docstrings (Manuel Paz Arribas)
• [#246] Add catalog and plotting utils (Axel Donath)
• [#245] Add colormap and PSF inset plotting functions (Axel Donath)
• [#244] Add 3FGL to dataset fetch functions (Manuel Paz Arribas)
• [#236] Add likelihood converter function (Christoph Deil)
• [#235] Add some catalog utilities (Christoph Deil)
• [#234] Add multi-scale TS image computation (Axel Donath)
• [#231] Add observatory and data classes (Christoph Deil)
• [#230] Use setuptools entry_points for scripts (Christoph Deil)
• [#225] Misc cleanup (Christoph Deil)
• [#221] TS map calculation update and docs (Axel Donath)
• [#215] Restructure TS map computation (Axel Donath)
• [#212] Bundle xmltodict.py in gammapy/extern (Christoph Deil)
• [#210] Restructure image measurement functions (Axel Donath)
• [#205] Remove healpix_to_image function (moved to reproject repo) (Christoph Deil)
• [#200] Fix quantity errors from astro source models (Christoph Deil)
• [#194] Bundle TeVCat in gammapy.datasets (Christoph Deil)
• [#191] Add Fermi PSF dataset and example (Ellis Owen)
• [#188] Add tests for spectral_cube.integral_flux_image (Ellis Owen)
• [#187] Fix bugs in spectral cube class (Ellis Owen)
• [#186] Add iterative kernel background estimator (Ellis Owen)

0.1 (August 25, 2014)

Summary

• Released on August 25, 2014 (Gammapy 0.1 on PyPI)
• 5 contributors
• 15 months of work (from May 15, 2013 to August 25, 2014)
• 82 pull requests
• Requires Astropy version 0.4 or later.

Contributors:

• Rolf Bühler
• Christoph Deil
• Axel Donath
• Ellis Owen
• Régis Terrier

Pull requests

Note that Gammapy development started out directly in the master branch, i.e. for some things there is no pull request we can list here.

• [#180] Clean up datasets code and docs (Christoph Deil)
• [#177] Misc code and docs cleanup (Christoph Deil)
• [#176] Add new gammapy.data sub-package (Christoph Deil)
• [#167] Add image profile function (Ellis Owen)
• [#166] Add SED from Cube function (Ellis Owen)
• [#160] Add code to make model images from a source catalog (Ellis Owen)
• [#157] Re-write Galaxy modelling code (Axel Donath)
• [#156] Add Fermi Vela dataset (Ellis Owen)
• [#155] Add PSF convolve function (Ellis Owen)
• [#154] Add Fermi PSF convolution method (Ellis Owen)
• [#151] Improve npred cube functionality (Ellis Owen)
• [#150] Add npred cube computation (Christoph Deil and Ellis Owen)
• [#142] Add EffectiveAreaTable and EnergyDependentMultiGaussPSF classes (Axel Donath)
• [#138] Add Crab flux point dataset (Rolf Bühler)
• [#128] Add flux point computation using Lafferty & Wyatt (1995) (Ellis Owen)
• [#122] Add morphology models as Astropy models (Axel Donath)
• [#117] Improve synthetic Milky Way modeling (Christoph Deil)
• [#116] Add Galactic source catalog simulation methods (Christoph Deil)
• [#109] Python 2 / 3 compatibility with a single codebase (Christoph Deil)
• [#103] Add datasets functions to fetch Fermi catalogs (Ellis Owen)
• [#100] Add image plotting routines (Christoph Deil)
• [#96] Add wstat likelihood function for spectra and images (Christoph Deil)
• [#88] Add block reduce function for HDUs (Ellis Owen)
• [#84] Add TablePSF and Fermi PSF (Christoph Deil)
• [#68] Integrate PyFACT functionality in Gammapy (Christoph Deil)
• [#67] Add image measure methods (Christoph Deil)
• [#66] Add plotting module and HESS colormap (Axel Donath)
• [#65] Add model image and image measurement functionality (Axel Donath)
• [#64] Add coordinate string IAU designation format (Christoph Deil)
• [#58] Add per-pixel solid angle function in image utils (Ellis Owen)
• [#48] Add sphere and power-law sampling functions (Christoph Deil)
• [#34] Rename tevpy to gammapy (Christoph Deil)
• [#25] Add continuous wavelet transform class (Régis Terrier)
• [#12] Add coverage reports to continuous integration on coveralls (Christoph Deil)
• [#11] Add blob detection (Axel Donath)
• Rename tevpy to gammapy in commit 7e955f on Aug 19, 2013 (Christoph Deil)
• Start tevpy repo with commit 11af4c on May 15, 2013 (Christoph Deil)