Download¶
Download EzGal here: http://www.mancone.net/tars/ezgal.tar.gz.Just unzip it and place the ezgal folder in your python path or working directory to get started.
Model file downloads¶
To make the EzGal web interface as convenient as possible I converted a large number of models into the EzGal model format. These models are avaialable for download on this page, that way if you want to run EzGal yourself you have ready-to-use model files. All of these files can be read directly by EzGal. The model file naming convention is described below. To view a complete list of all available model files for download click here. Here are some wget commands you can use to download particular model sets:| Command | Fetches |
|---|---|
| wget -r http://www.mancone.net/ezgal/models/index.html | All models |
| wget -r http://www.mancone.net/ezgal/models/basti.html | All BaSTI models |
| wget -r http://www.mancone.net/ezgal/models/bc03.html | All BC03 models |
| wget -r http://www.mancone.net/ezgal/models/cb07.html | All CB07 models |
| wget -r http://www.mancone.net/ezgal/models/m05.html | All M05 models |
| wget -r http://www.mancone.net/ezgal/models/c09.html | All C09 models |
| wget -r http://www.mancone.net/ezgal/models/ssps.html | All SSP models |
| wget -r http://www.mancone.net/ezgal/models/exps.html | All models with exponentially decaying SFHs |
Naming Convention¶
All filenames contain information on the model set, SFH, IMF, and metallicity. The naming convention is:{modelset}_{sfh}_z_{met}_{imf}.fits
Here is the list of the model set abbreviations (as they appear in the filenames) and their corresponding references:
| Abbreviation | Reference |
|---|---|
| bc03 | Bruzual and Charlot 2003 (MNRAS, 344, 1000) |
| cb07 | Currently unpublished. Please reference as an updated BC03 model. |
| m05 | Maraston et al. 2005 (MNRAS, 362, 799) |
| basti | Percival et al. 2009 (ApJ, 690, 472) |
| c09 | Conroy, Gunn, and White 2009 (ApJ, 699, 486C) and Conroy and Gunn 2010 (ApJ, 712, 833C (Please cite both) |
SFH can be one of the following. With the exception of the SSP each SFH has an additional paramter, which is listed right after the SFH type.
| Abbreviation | SFH | Additional Parameter |
|---|---|---|
| ssp | A simple stellar population (delta-burst) | |
| exp | Exponentially decaying burst of star formation | E-folding time for exponential decay (Gyrs) |
| burst | A short burst of constant star formation | Length of burst (Gyrs) |
| const | Constant star formation from z=zf to z=0 | V-band optical depth of dust extinction |
Next is the metallicity. Different model sets use different values for solar metallicity. These values are:
| Model Set | Solar Metallicity |
|---|---|
| BC03 | 0.02 |
| CB07 | 0.02 |
| M05 | 0.02 |
| BaSTI | 0.0198 |
| C09 | 0.019 |
Finally is the IMF. These are simply abbreviated as:
| Abbreviation | IMF |
|---|---|
| krou | Kroupa (2001) |
| chab | Chabrier (2003) |
| salp | Salpeter (1955) |
Some examples:
cb07_burst_0.1_z_0.02_chab.fits
Specifies n burst of length 0.1 Gyrs, solar metallicity, a Chabrier IMF, and the CB07 model set.
c09_exp_0.5_z_0.019_krou.fits
Specifies an exponentially decaying burst of star formation with a timescale of 0.5 Gyrs, solar metallicity, a Kroupa IMF, and the models from Conroy, Gunn, and White (2009).
