The kappaTNG suite is composed of mock weak lensing maps created from IllustrisTNG simulations with ray-tracing technique.
We released the full kappaTNG datasets hosted by the file server at Kavli IPMU.
The site is here.
The maps generated from full-physics (TNG300) and dark-matter only (TNG300-Dark) runs are located at fullphys
and dmonly
.
Each directory has maps
and the map files are found as LP[001-100]/LP[001-100]_run[001-100]_maps.hdf5
.
We provide a sample script to download the map files here.
The file format is updated to HDF5 instead of binary format.
The old codes are kept in the directory binary
.
We recommend you use the new format.
We provide a jupyter notebook to load lensing maps (load_map.ipynb
) and
to use the fitting formula of the angular power spectrum ratio (fitting_formula.ipynb
).
The convergence maps are defined in regular grids.
- number of grids:
$1024 \times 1024$ - angular size on a side: 5 deg
- resolution: 0.29 arcmin/pixel
There are 40 source redshifts and exact values are found in zs.dat
.
We kindly ask those who use the kappaTNG suite to cite the paper: Osato, Liu, and Haiman (2021). The bibtex entry of the paper is:
@ARTICLE{kappaTNG,
author = {{Osato}, Ken and {Liu}, Jia and {Haiman}, Zolt{\'a}n},
title = "{{\ensuremath{\kappa}}TNG: effect of baryonic processes on weak lensing with IllustrisTNG simulations}",
journal = {\mnras},
keywords = {gravitational lensing: weak, methods: numerical, large-scale structure of Universe, Astrophysics - Cosmology and Nongalactic Astrophysics},
year = 2021,
month = apr,
volume = {502},
number = {4},
pages = {5593-5602},
doi = {10.1093/mnras/stab395},
archivePrefix = {arXiv},
eprint = {2010.09731},
primaryClass = {astro-ph.CO},
adsurl = {https://ui.adsabs.harvard.edu/abs/2021MNRAS.502.5593O},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
Copyright 2021 Ken Osato, Jia Liu, and Zoltán Haiman
This software is made available under MIT License. Please see LICENSE
file for details.