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Illustrishttp://www.illustris-project.orgSnyder et al. 2017, MNRAS, 468, 207See also: Nelson et al. 2015, A&C, 13, 12 | Vogelsberger et al. 2014, MNRAS, 444, 1518
Introduction
This page hosts synthetic deep survey images from the Illustris Project cosmological simulations of galaxy formation. By projecting a line of sight through a periodic volume, we constructed realistic mock surveys which preserve the predicted geometry of the simulations. With the emergence of large hydrodynamical simulations of galaxy formation, we can now create these mock galaxy surveys with detail down to the size scales and distances revealed by HST, and in the future, those JWST and WFIRST will reveal. The Illustris Project consists of hydrodynamical simulations of galaxy formation in a volume 106.5 Mpc across, with detail resolved down to sub-kpc scales. Using the Arepo code, Illustris applied galaxy physics consisting of cooling, star formation, gas recycling, metal enrichment, supermassive black hole growth, and gas heating by feedback from supernovae and black holes. By converting simulations like these into synthetic observations, we can interpret HST observations with complex models of galaxy assembly, plan ahead for future missions, and directly contrast valuable survey data with our theoretical understanding of the physics behind the formation of galaxies. Here, we present three "mock ultra deep fields", each 2.8 arcminutes across, in common wide filters used by HST, as well as in filters expected to be used widely by observers with JWST and WFIRST. For HST and JWST simulations, we provide images with and without convolution by model PSFs. For each image, we also provide the simulation catalog from which we generated each image, enabling users to locate sources, link them to intrinsic simulation quantities, and conduct analyses across observation and theory space. Description of Data ProductsThe deep fields are provided as multi-extension FITS files. The filenames all begin with "hlsp_misty_illustris_", and then a string as follows:
<instrument>_<field>_<filter>_v1_lightcone.fits
where:
The FITS files contain the following HDUs:
Data AccessDirect DownloadYou can download the FITS file(s) of interest from the pages below.
You can also download files progammatically using, e.g., wget or cURL. For a given file, the URL is given by:
https://archive.stsci.edu/hlsps/illustris/<field>_images/<file>
where <field> is the "field" part of the file name as described above, and <file> is the FITS file you want to download. For example:
https://archive.stsci.edu/hlsps/illustris/mag30-fielda-11-10_images/hlsp_misty_illustris_hst-acs_mag30-fielda-11-10_f435w_v1_lightcone.fits |
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