Here are the classes, structs, unions and interfaces with brief descriptions:

genericSources::FitsImage::AxisParams	Nested class to represent FITS image axis information
BackgroundMixer	This class provides interface needed to create the background mixed events data
microQuasar::burstPairs
GrbGlobalData::calcEpeak	Used to fill a vector with the product of its values with m_value
ClusterData	This class provides interface for cluster of photons
ClusterInfo	This class provides interface for cluster of photons
GRBobs::ConstParMap
celestialSources::ConstParMap
genericSources::GaussianQuadrature::dgaus8Exception
microQuasar::DiskCycleProperties
distCmp
SourcePopulation::PointSource::DndeIntegrand
EarthPhenomInner
EarthPhenomLimb
IRB::EblAtten	Function object wrapper to Hays/McEnery code (in IRB_routines.cxx) that calculates EBL optical depth as a function of energy and redshift for four different models
FileSpectrum	Spectrum that reads its differential spectrum from a table
FileSpectrumMap
genericSources::FitsImage	A class for accessing FITS image data
FitsTransient	A flaring source whose spectral evolution is given by data in a FITS binary table
genericSources::GaussianQuadrature
GaussianSource	2D Gaussian extended source
GaussianSpectrum	Point source with a Gaussian spectrum
GbmGrb	This class is intended to be instantiataed by the GRBmaker::create method
GlobalData	This class provides the interface for burst specific data
GRBengine	This class permits to generate several GRB
GrbGlobalData	This class provides interface for the burst specific data
GRBmaker	This class provides interface for the creation of the bursts of supported types
GRBmanager	Spectrum class for many GRBs
GRBobsConstants	Class instantiated to access general parameters and constants
GRBobsengine
GRBobsmanager	Spectrum class for many GRBs This class concatenates several GRB one after the other for simulating a series of several GRBs
GRBobsParameters
GRBobsPulse	GRB phenomenological pulse description
GRBobsSim	Simulator engine of a GRB source simulated with the GRB phenomenological model
GRBobsSpectrum	Spectrum class for GRB source physical simulation. Class interfacing the framework with the GRB generation
GRBobsUtilities	This class provides some utilities for the this program
GRBpulse	This class provides interface for pulse data within a burst
GRBShell	Describes a shell produced by the blast of the GRB inner engine
GRBShock	This class implements the shock physics
GRBSim	Simulator engine of a GRB source
GRBsimvecCreator	This class provides methods to fill up the vectors needed in the calculations of burst specific data
GRBtemplateManager	Spectrum class for many GRBs This class concatenates several GRB one after the other for simulating a series of several GRBs
GRBtemplateSim	Simulator engine of a GRB source simulated with the GRB phenomenological model
GRBurst	This class serves as a base class for GbmGrb and LatGrb classes
ClusterData::greater_equal	Joint probability
microQuasar::InBurst
Isotropic
IsotropicFileSpectrum	IsotropicFileSpectrum diffuse emission
LatGRBAlert::isSignalSet	Set to true for the region that contains >= 1 signals
microQuasar::JetProperties
LatGrb	This class is intended to be instantiataed by the GRBmaker::create method
LatGRBAlert	This class provides interface for trigger likelihood determination process
LatGRBAlertConstants	Class instantiated to access general parameters and constants
ClusterData::less
LineOfSight
MapCube	A source class for the flux package that uses FITS images as templates for the photon distribution on the sky
MapSource	A source class for the flux package that uses FITS images as templates for the photon distribution on the sky
microQuasar	A source class for the flux package that simulates the gamma emission of microQuasars
SpectralTransient::ModelInterval
GRBobsUtilities::multiplier	Used to fill a vector with the product of its values with m_value
MyFunction
microQuasar::NextBurst
microQuasar::OrbitalRegion
Parameters	This class reads the parameters from the file, compute the parameters of the physical model
PeriodicSource	A periodic source with sinusoidal modulation for the flux package
photon
PhotonInfo	This class provides interface for photons
SourcePopulation::PointSource
IRB::Primack05
Profile
Pulsar	Simulates a pulsar with period and period derivative and light curve given by a template file
PulsarConstants	Class instantiated to access general parameters and constants
PulsarSim	Class that contains the generation of the TH2D ROOT Histogram for Pulsar flux according to a selected model
PulsarSpectrum	Class that generates a Pulsar sources according to the parameters specified in the XML file (model parameters) and in the PulsarDataList.txt located in the /data directory
RadialSource	A source with radial extent and azimuthal symmetry
GRBobsUtilities::randGen
ShockCmp	This class allows the sorting of the GRBShock vector
SimpleTransient
SourcePopulation	Draw from a population of steady point sources
SpectObj	General interface for astronomical spectrum
SpectralComponent
SpectralTransient	A flaring source whose light curve shape is given by a template file
SpectrumFactoryLoader
TestApp
TF1Map
TF1Spectrum
timeCmp	This class provides the functionality to sort data in time order
TimeEnergy	This class provides interface for the burst data
TRandom4	Replace ROOT uniform random number generator with CLHEP RandFlat
TransientTemplate	A flaring source whose light curve shape is given by a template file
SpectObj::UniformRandom
genericSources::Util	Various static functions of general use for Science Tools applications