2024-01-18 ∾ Astropy
Since v1.34, galpak
is compatible with astropy v>5.1 and 6.0
GalPaK 3D is a tool to extract the intrinsic (i.e. deconvolved) Galaxy Parameters and Kinematics from any 3-Dimensional data. The algorithm uses a disk parametric model with 10 free parameters (which can also be fixed independently) and a MCMC approach with non-traditional sampling laws in order to efficiently probe the parameter space.
More importantly, it uses the knowledge of the 3-dimensional spread-function to return the intrinsic galaxy properties and the intrinsic data-cube. The 3D spread-function class is flexible enough to handle any instrument.
One can use such an algorithm to constrain simultaneously the kinematics and morphological parameters of (non-merging, i.e. regular) galaxies observed in non-optimal seeing conditions. The algorithm can also be used on AO data or on high-quality, high-SNR data to look for non-axisymmetric structures in the residuals.
If you use galpak, please acknowledge Bouche, N. et al. 2015 and cite the ACL entry ascl:1501.014
Since v1.34, galpak
is compatible with astropy v>5.1 and 6.0
Since v1.32, galpak
is compatible with Maoppy.
Since v1.30, galpak
is pypi compatible here.
Since v1.20, galpak
can work with EMCEE walkers (slow); and can read/write models and instrument from configuration file
Since v1.16, galpak
has several new rotation curves: NFW, Burkert, freeman disk
Since v1.12, the PA definition is anti-clockwise from y-axis (matching the disk model)
Since v1.11, galpak
has several new features : autorun (API) for autotune randomscale / plot_geweke for convergence / plot_vprofile with errors from chain
Since v1.10, galpak
is Python >3.5 compatible.
Since v1.8.8, galpak
is Python3 compatible.
doit
implementationSince v1.5.0, galpak
supports doit
tasks and python setup.py install
.
Since v1.3.0, galpak
can now work with ALMA data.
Set the lsf_fwhm
to something less than 1 channel.
Since v1.2.0, galpak
can now generate a video of your run.
You'll probably need a very recent version of ffmpeg, or the video generation will fail after about 820 frames. This is for advanced users only, for now.
See the docstring of galpak.GalPaK3D.film_images
for more informations.