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0.1.2dev

  • Include PowerExp 1D model
  • Allow the surface-brightness used during the model construction to be defined separately from the binned surface-brightness data. This is useful for modeling the stellar kinematics.
  • Allow the surface-brightness masks to be patched by a Gaussian smoothing algorithm to fill surface-brightness holes.
  • AxisymmetriDisk now uses ConvolveFFTW by default.
  • Included analytic calculations of derivatives for use with the AxisymmetricDisk fits. Analytic calculations are used by default, but the lsq_fit function allows for a fall back to the finite-difference methods provided by scipy.optimize.least_squares.
  • Included additional 1D functions for, e.g., rotation curves.
  • Bug fixes when using covariance and fitting without dispersion in nirvana_manga_axisym script. Includes propagation of sigma covariance to corrected sigma**2 covariance.
  • Added the nirvana_manga_axisym_collate script to collate the metadata rows from all nirvana_manga_axisym output files into a single fits table.
  • Minor adjustments to the datamodel for the nirvana_manga_axisym metadata table.

0.1.0

  • Initial version
  • Add beam-smearing
  • Restructure into python package
  • Added Kinematics class for presenting the data to be modeled
  • Added the MaNGA-specific I/O objects that subclass from Kinematics
  • Changes the geometry computation; see barfit.models.geometry
  • Speeds up the beam-smearing convolution, and checks that the convolution with the MaNGA PSF does not shift the model
  • Dramatically speeds up the Kinematics.bin function using scipy.sparse matrices.
  • Adds a bunch of test code.
  • Begins the implementation of a general AxisymmetricDisk class.
  • Adds fixing of center
  • Adds mock data set
  • Added in fitting of dispersion in radial bins
  • Changed barfit.barfit.unpack to use a dictionary
  • Lots of changes to barfit.barfit code to utilize dictionary
  • Various changes to FitArgs and script to accommodate dictionary
  • Huge changes to barfit.plotting for dispersion and dictionary
  • Switched to using MPL-10 by default
  • Tests and docs for barfit.models.oned.
  • Added barfit.models.beam.ConvolveFFTW class for doing convolutions with the FFTW library.
  • Added masking of edges of mocks to mitigate convolution edge effects
  • Renamed to NIRVANA
  • Removed MCMC and associated arguments
  • Enable fit to velocity dispersion using AxisymmetricDisk.
  • Force calculation of mom0 in nirvana.model.beam.smear even if the surface brightness is not provided, using a unity array.
  • Add continuous integration tests using GitHub Workflow
  • Add initial docs
  • Copy over the BitMask class from the sdss-mangadap
  • Update masking and add method that determines the target sample given the targeting bits
  • Added construction of MaNGA covariance matrices and incorporated them into Kinematics.
  • Added handling of covariance matrices in AxisymmetricDisk.
  • Added nirvana.data.scatter.IntrinsicScatter used to both reject outlying residuals and determine the intrinsic scatter in the data.
  • Added galaxy pngs, drpall, and dapall to test data
  • Added nirvana.data.meta.GlobalPar and nirvana.data.manga.MaNGAGlobalPar classes to hold metadata
  • Added iterative axisymmetric disk fitting, assessment plots, and output file.
  • Fix nirvana.data.manga.MaNGAGlobalPar to handle when photometry is unavailable. New header keyword PHOT_KEY add to binary table output for axisymmetric fit giving which photometry was used.
  • Axisymmetric fit changes:
    • Include flag to set minimum number of valid spaxels for axisymmetric fit to proceed.
    • set lower bound on inclination to 1 degree to avoid div-by-zero errors.
    • Added option to find the largest coherent region of valid spaxels for the fit.
  • Added manga download scripts