This repository contains all the data used to analyze the star formation history (SFH) of Dragonfly 44 (DF44) as discussed in Webb+2022 (https://ui.adsabs.harvard.edu/abs/2022MNRAS.516.3318W/abstract) based on high-S/N and high-resolution rest-frame optical KCWI spectroscopy and NUV--NIR photometry.
The scripts used to generate the figures in Webb+2022 are provided in
analysis/Webb2022_figures/*
Note that some figures have slight errors, as noted in
analysis/Webb2022_figures/errata.txt
These errors have been corrected in the notebooks shared here.
as shown in various notebooks in
analysis/
Additional fits with different SFH models/priors:
- nonparametic model with constant SFR "continuity" prior
- nonparametic model with Dirichlet prior with other
$\alpha_\mathrm{D}$ values - delayed declining exponential SFR model
- numpy (v1.25.1)
- matplotlib (v3.7.2)
- scipy (v1.11.1)
- astropy (v5.3.1)
- pandas (v2.0.3)
- seaborn (v0.12.2)
- corner (v2.2.2)
- ipython, Jupyter notebook (v4.0.3)
- Prospector (v1.2.0):
- and dependent packages for Prospector
- h5py (v3.9.0)
- dynesty (v2.1.2)
Setup details:
-
In order to construct the filter objects used by Prospector, via sedpy, copy filter files for Dragonfly44 from
data/Dragonfly44/sedpy_filters/
to the appropriate sedpy folder
sedpy/data/filters/