Jürgen Knödlseder / gammalib

2.0.rst 7.29 KB

GammaLib 2.0 release (19 February 2022)

Overview

GammaLib 2.0 is a major release that adds significant functionality.

In particular, this release provides:

  • full support for COMPTEL data analysis
  • support for pulsar analysis
  • vectorised response computation
  • support Galactic coordinates in spatial models
  • provision of carbon footprint information and statistics

Bug fixes

  • [3973] - Implement CGRO clock correction
  • Compute spectral model gradients for negative factor values
  • [3563] - Fix incompatibility in GMatrixSparse::mix_column_prepare() method
  • [3553] - Fix reading of scaled FITS columns, remove GFitsTableCol::scale() method
  • [3547] - Correct COMPTEL average deadtime to 0.965 (Rob van Dijk's thesis)
  • [3541] - Fix handling of empty matrix objects
  • [3499] - Fix response cache removal for vector cache
  • Fix GSkyMap::stack_maps() method for WCS maps
  • [3417] - Correct application elapsed CPU time for OpenMP

Improvements

  • By default, do not allow log-likelihood decrease in LM optimiser
  • [3988] - Support Galactic coordinates in spatial models
  • Add GCOMObservation::tim() and GCOMObservation::oads() setter methods
  • [3917] - Add GCOMSelection::fpmtflag(), GCOMSelection::use_d1() and GCOMSelection::use_d2() methods
  • [3913] - Add GCOMModelDRBPhibarBins class
  • [3912] - Add likelihood fit event selection hook
  • [3908] - Add angle(GVector&,GVector&) friend function
  • Make extension name check case insensitive in GFits::extno()
  • Add numerical gradient step size member to GObservation
  • [3662] - Add stamp() methods to GApplication
  • [3630] - Add ASCL shield to About page
  • [3626] - Add GModelSpectralFunc spectral constructor
  • [3592] - Add carbon footprint estimation to GApplication
  • [3564] - Add phase selection to GCOMSelection and GCOMDri
  • [3558] - Implement COMPTEL response for diffuse models
  • [3557] - Implement COMPTEL background model computation
  • [3552] - Add gammalib::compare() function
  • Add DRI constructor to GCOMObservation class
  • Add member access methods to GCOMDri class
  • [3549] - Implement ToF correction for COMPTEL EVP version 2 datasets
  • [3548] - Implement ToF correction in IRF computation
  • Add methods to GCOMObservation class to access DRI filenames
  • [3535] - Add GModelSpectralFunc methods to build file function in memory
  • [3501] - Implement vectorised response computation for COMPTEL
  • [3386] - Support spectral line fitting
  • [3333] - Integrate analytical gradients for energy dispersion computation
  • [3324] - Remove implicit conversion warnings
  • Implement GMatrixSparse::row() and GMatrixSparse::add_to_row() methods
  • [3203] - Implement vectorised response computation and analytical gradients for the radial Gaussian model in a stacked analysis
  • [1785] - Add GSkyMap::flux(GRegion), GSkyMap::flux(GRegions), GSkyMap::solidangle(GRegion) and GSkyMap::solidangle(GRegions) methods
  • [1785] - Reimplement GModelSpatial::flux() method for diffuse and combined models
  • [1300] - Implement pre-computation cache in GModelSpatialGauss

New features

  • [3973] - Add GCOMBvc and GCOMBvcs classes to support COMPTEL pulsar analysis, revise GCOMSelection interface to support both orbital and pulsar phase selection, extend GCOMObservation interface to handle Solar System Barycentre Data
  • [3924] - Add GModelSpatialRadialGeneralGauss and GModelSpatialEllipticalGeneralGauss classes
  • [3910] - Add GCOMModelDRM class
  • [3606] - Add GModelSpectralBins class
  • [3592] - Add GammaLib daemon for application statistics management
  • [3527] - Add GCTABackground2D class
  • [3469] - Add GModelAssociation and GModelAssociations classes
  • [3461] - Add GSkyMap::correlate() method
  • [3455] - Add GModels::eval() vector evaluation method
  • [3442] - Add GCTAModelSkyCube class
  • [3439] - Add GSkyModel flux() and eflux() methods
  • [3431] - Add XML value constructors and access methods to GXmlElement class
  • [3403] - Implement sparse vector response cache
  • [3328] - Add GFunctions abstract base class and GIntegrals class
  • [3324] - Add gammalib::tmpnam() function
  • [3324] - Add GSkyDirs container class
  • [3248] - Add GSkyRegionRect class
  • [3074] - Add GSkyModel flux_error() and eflux_error() methods

Clean up

  • Remove GCOMSelection::zeta_min() and GCOMSelection::zeta_max() methods
  • [3560] - Store DRB, DRG and DRX as instances of GCOMDri instead of GSkyMap in GCOMObservation
  • [2973] - Remove COMPTEL internal response caching
  • [35] - Replace specific by generic exceptions