
This readme.txt file was generated on 01/10/2021 by Rob Yates


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GENERAL INFORMATION
-------------------

1. Title of Dataset:
   YPN21_simData_ascii_1_0_0


2. Description of Dataset:
   Derived data of cosmic propeties from the L-Galaxies 2020, EAGLE, and TNG100 simulations, as shown in Figs. 1-5 of Yates, Peroux & Nelson (2021, YPN21)


3. Author Information:
   Name: Robert Martin Yates
   Institution: University of Surrey, Guildford, UK
   Email: r.m.yates -at- surrey.ac.uk

   Name: Celine Peroux
   Institution: ESO, Garching, Germany

   Name: Dylan Nelson
   Institution: ITA/ZAH, Heidelberg, Germany


4. Date of data collection:
   30/09/2021


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SHARING/ACCESS INFORMATION
-------------------------- 

1. Licenses/restrictions placed on the data:
   This data can be used freely for scientific research purposes.
   The authors ask that relevant publications are cited (see 3. below) whenever making public use of this data.


2. Links to other publicly accessible locations of the data:
   https://www.tng-project.org/files/data/
   https://robyatesastro.wixsite.com/robyates/data/


3. Recommended citations for the data:
   Citation to the work presenting this data:
     Yates R. M., Peroux C., Nelson D., 2019, MNRAS, accepted, arXiv:2109.06888
   
   Citations to the EAGLE simulation:
     Crain R. A., et al., 2015, MNRAS, 450, 1937
     Schaye J., et al., 2015, MNRAS, 446, 521

   Citation to the L-Galaxies DM simulation:
     Henriques B. M. B., Yates R. M., Fu J., Guo Q., Kauffmann G., Srisawat C., Thomas P. A., White S. D. M., 2020, MNRAS, 491, 5795

   Citation to the L-Galaxies MM simulation:
     Yates R. M., Henriques B. M. B., Fu J., Kauffmann G., Thomas P. A., Guo Q., White S. D. M., Schady P., 2021, MNRAS, 503, 4474

   Citations to the TNG100 simulation:
     Naiman J. P., et al., 2018, MNRAS, 477, 1206
     Pillepich A., et al., 2018b, MNRAS, 475, 648
     Nelson D., et al., 2018a, MNRAS, 475, 624
     Marinacci F., et al., 2018, MNRAS, 480, 5113
     Springel V., et al., 2018, MNRAS, 475, 676


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DATA & FILE OVERVIEW
---------------------

1. File List:
   Fig1_EAGLE.txt
   Fig1_LGalaxies2020_DM.txt
   Fig1_LGalaxies2020_MM.txt
   Fig1_TNG100.txt
   Fig2_EAGLE.txt
   Fig2_LGalaxies2020_DM.txt
   Fig2_LGalaxies2020_MM.txt
   Fig2_TNG100.txt
   Fig3_EAGLE.txt
   Fig3_LGalaxies2020_DM.txt
   Fig3_LGalaxies2020_MM.txt
   Fig3_TNG100.txt
   Fig4_EAGLE.txt
   Fig4_LGalaxies2020_DM.txt
   Fig4_LGalaxies2020_MM.txt
   Fig4_TNG100.txt
   Fig5_EAGLE.txt
   Fig5_LGalaxies2020_DM.txt
   Fig5_LGalaxies2020_MM.txt
   Fig5_TNG100.txt

2. Versions:
   This is the first version (1.0.0) of this data set.


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DATA-SPECIFIC INFORMATION
-------------------------

Files:
   Fig1_EAGLE.txt
   Fig1_TNG100.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured 
   RHO_MET_TOTAL - Metal mass density of all gas and stars
   RHO_MET_STARS - Metal mass density of all stars
   RHO_MET_NGAS004 - Metal mass density of all gas with n_gas <= 10^-2.4 cm^-3 (i.e. n_gas <= 0.004 cm^-3)
   RHO_MET_IGRMICM_T6 - Metal mass density of gas with temperature T >= 10^6.0 K in DM subhaloes with 13.0 <= log(M_vir/M_sun) <= 15.0
   RHO_MET_NGAS004_016 - Metal mass density of all gas with 10^-2.4 < n_gas/cm^-3 <= 10^-1.8 (i.e. 0.004 < n_gas/cm^-3 <= 0.016)
   RHO_MET_NGAS016_05 - Metal mass density of all gas with 10^-1.8 < n_gas/cm^-3 <= 10^-1.3 (i.e. 0.004 < n_gas/cm^-3 <= 0.05)
   RHO_MET_NGAS025 - Metal mass density of all gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3)
   RHO_MET_NGAS05 - Metal mass density of all gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3)
   RHO_MET_NGAS1 - Metal mass density of all gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3)


2. Notes:
   All densities are in units of M_sun/cMpc^3
   See Section 4.1 of YPN21 for more details


-------------------------
Files:
   Fig1_LGalaxies2020_DM.txt
   Fig1_LGalaxies2020_MM.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured 
   RHO_MET_TOTAL - Metal mass density of all gas and stars
   RHO_MET_STARS - Metal mass density of all stars (i.e. bulge, disc, and halo)
   RHO_MET_HOTGAS - Metal mass density of all hot gas (i.e. hot gas and ejected mass reservoirs)
   RHO_MET_IGRMICM - Metal mass density of hot gas (i.e. hot gas reservoir) in DM subhaloes with 13.0 <= log(M_vir/M_sun) <= 15.0
   RHO_MET_COLDGAS - Metal mass density of all cold gas
   RHO_MET_COLDGAS_HICORR - Metal mass density of cold gas, corrected for the discrepancy between the observed HI density and that found in the simulation, i.e. (1 + HI_density_fraction) * RHO_MET_COLDGAS

2. Notes:
   All mass densities are in units of M_sun/cMpc^3
   See Section 4.1 of YPN21 for more details


-------------------------
Files:
   Fig2_EAGLE.txt
   Fig2_LGalaxies2020_DM.txt
   Fig2_LGalaxies2020_MM.txt
   Fig2_TNG100.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured 
   LOG_SFRD - Base-10 logarithm of the star formation rate (SFR) density

2. Notes:
   All SFR densities are in units of M_sun/yr/cMpc^3
   See Section 4.2 of YPN21 for more details


-------------------------
Files:
   Fig3_EAGLE.txt
   Fig3_TNG100.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured
   RHO_HI_R15 - (EAGLE only) HI mass density, as calculated by Rahmati et al. (2015)
   RHO_HI_VN18 - (TNG100 only) HI mass density, as calculated by Villaescusa-Navarro et al. (2018)
   RHO_HI_P19 - (TNG100 only) HI mass density, as calculated by Popping et al. (2019)
   
2. Notes:
   All mass densities are in units of M_sun/cMpc^3
   See Section 4.3 of YPN21 for more details


-------------------------
Files:
   Fig3_LGalaxies2020_DM.txt
   Fig3_LGalaxies2020_MM.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured
   RHO_HI - HI mass density, as calculated using Eqn. 4 from YPN21
   RHO_HI_SUBRESMODEL - HI mass density for DM subhaloes with log(M_vir/M_sun) >= 9.2 plus the redshift-independent correction for HI in sub-resolution systems of 1.5x10^-5 * rho_crit M_sun/cMpc^3 (i.e. 2040000.0 M_sun/cMpc^3) (see De Gioia+20).
   RHO_HI_IGMMODEL - HI mass density plus the redshift-dependent fraction of HI gas present outside DM subhaloes in TNG100 (see Villaescusa-Navarro et al. 2018).
   
2. Notes:
   All mass densities are in units of M_sun/cMpc^3
   See Section 4.3 of YPN21 for more details


-------------------------
Files:
   Fig4_EAGLE.txt
   Fig4_TNG100.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured
   MH_NEU_NGAS1_M89 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3) in galaxies with 8.0 <= log(M_star/M_sun) < 9.0
   MH_NEU_NGAS05_M89 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3) in galaxies with 8.0 <= log(M_star/M_sun) < 9.0
   MH_NEU_NGAS025_M89 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3) in galaxies with 8.0 <= log(M_star/M_sun) < 9.0
   MH_NEU_NGAS1_M910 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3) in galaxies with 9.0 <= log(M_star/M_sun) < 10.0
   MH_NEU_NGAS05_M910 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3) in galaxies with 9.0 <= log(M_star/M_sun) < 10.0
   MH_NEU_NGAS025_M910 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3) in galaxies with 9.0 <= log(M_star/M_sun) < 10.0
   MH_NEU_NGAS1_M1011 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3) in galaxies with 10.0 <= log(M_star/M_sun) < 11.0
   MH_NEU_NGAS05_M1011 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3) in galaxies with 10.0 <= log(M_star/M_sun) < 11.0
   MH_NEU_NGAS025_M1011 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3) in galaxies with 10.0 <= log(M_star/M_sun) < 11.0

2. Notes:
   All metallicities are normalised to the solar photospheric value of Z_sun/X_sun = M_met,sun/M_H,sun = 0.0181 from Asplund et al. (2009)
   See Section 4.4 of YPN21 for more details


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Files:
   Fig4_LGalaxies_DM.txt
   Fig4_LGalaxies_MM.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured
   MH_NEU_M89 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in cold gas in galaxies with 8.0 <= log(M_star/M_sun) < 9.0
   MH_NEU_M910 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in cold gas in galaxies with 9.0 <= log(M_star/M_sun) < 10.0
   MH_NEU_M1011 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in cold gas in galaxies with 10.0 <= log(M_star/M_sun) < 11.0

2. Notes:
   All metallicities are normalised to the solar photospheric value of Z_sun/X_sun = M_met,sun/M_H,sun = 0.0181 from Asplund et al. (2009)
   See Section 4.4 of YPN21 for more details


-------------------------
Files:
   Fig5_EAGLE.txt
   Fig5_TNG100.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured
   MH_NEU_NGAS1_ALLM - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3) in all galaxies
   MH_NEU_NGAS05_ALLM - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3) in all galaxies
   MH_NEU_NGAS025_ALLM - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3) in all galaxies
   MH_NEU_NGAS1_M7 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3) in galaxies with log(M_star/M_sun) > 7.0
   MH_NEU_NGAS05_M7 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3) in galaxies with log(M_star/M_sun) > 7.0
   MH_NEU_NGAS025_M7 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3) in galaxies with log(M_star/M_sun) > 7.0
   MH_NEU_NGAS1_M8 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.0 cm^-3 (i.e. n_gas > 0.1 cm^-3) in galaxies with log(M_star/M_sun)  > 8.0
   MH_NEU_NGAS05_M8 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.3 cm^-3 (i.e. n_gas > 0.05 cm^-3) in galaxies with log(M_star/M_sun) > 8.0
   MH_NEU_NGAS025_M8 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in gas with n_gas > 10^-1.6 cm^-3 (i.e. n_gas > 0.025 cm^-3) in galaxies with log(M_star/M_sun) > 8.0

2. Notes:
   All metallicities are normalised to the solar photospheric value of Z_sun/X_sun = M_met,sun/M_H,sun = 0.0181 from Asplund et al. (2009)
   See Section 4.4 of YPN21 for more details


-------------------------
Files:
   Fig5_LGalaxies_DM.txt
   Fig5_LGalaxies_MM.txt

1. Variables:
   REDSHIFTS - Output snapshot redshifts at which the following properties were measured
   MH_NEU_ALLM - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in cold gas in all galaxies
   MH_NEU_M7 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in cold gas in galaxies with log(M_star/M_sun) > 7.0
   MH_NEU_M8 - Base-10 logarithm of the HI-weighted mean metal-to-hydrogen mass ratio (i.e. metallicity) in cold gas in galaxies with log(M_star/M_sun)  > 8.0
   
2. Notes:
   All metallicities are normalised to the solar photospheric value of Z_sun/X_sun = M_met,sun/M_H,sun = 0.0181 from Asplund et al. (2009)
   See Section 4.4 of YPN21 for more details

END
