J/MNRAS/398/451 PopStar I: Evolutionary synthesis models (Molla+, 2009)
PopStar I: Evolutionary synthesis models description.
Molla M., Garcia-Vargas M.L.,Bressan, A.
<Mon. Not. R. Astron. Soc. 398, 451 (2009)>
=2009MNRAS.398..451M 2009MNRAS.398..451M
ADC_Keywords: Models, evolutionary ; Equivalent widths ; Photometry
Keywords: galaxies: abundances - galaxies: evolution - galaxies: starburst -
galaxies: stellar content
Abstract:
We present new evolutionary synthesis models for Simple Stellar
Populations for a wide range of ages and metallicities. The models are
based on the Padova isochrones. The core of the spectral library is
provided by the medium resolution Lejeune et al. atmosphere models.
These spectra are complemented by NLTE atmosphere models for hot stars
that have an important impact in the stellar cluster's ionizing
spectra: O, B and WR stellar spectra at the early ages, and spectra of
post-AGB stars and planetary nebulae, at intermediate and old ages. At
young ages, our models compare well with other existing models but we
find that, the inclusion of the nebular continuum, not considered in
several other models, reddens significantly the integrated colours of
very young stellar populations. This is consistent with the results of
spectral synthesis codes particularly devised for the study of
starburst galaxies. At intermediate and old ages, the agreement with
literature model is good and, in particular, we reproduce well the
observed colours of star clusters in LMC. Given the ability to produce
good integrated spectra from the far-UV to the infrared at any age, we
consider that our models are particularly suited for the study of high
redshift galaxies. These models are available on the web site
http://www.fractal-es.com/SEDmod.htm and also through the Virtual
Observatory Tools on the PopStar server.
Description:
These tables give the complete information of Tables 2-5, 7-9
of the published paper.
Each table show the calculations results done for 6 IMFs:
* Salpeter (1955ApJ...121..161S 1955ApJ...121..161S)
* SAL1, with mlow=0.85 and mup=120M☉,
and STB, with mlow=1.00 and mup=100M☉,
* Salpeter (1955ApJ...121..161S 1955ApJ...121..161S) SAL2,
* Ferrini et al. (1990A&A....231.391F 1990A&A....231.391F) FER,
* Kroupa et al. (2001MNRAS.322..231K 2001MNRAS.322..231K) KRO and
* Chabrier (2003ApJ...586L.133C 2003ApJ...586L.133C) CHA, with
mlow=0.15 and mup=100M☉, as IMF mass limits.
For each IMF, calculations are done for 6 metallicities (Z=0.0001,
0.0004, 0.004, 0.008, 0.02 and 0.05) and a variable number of ages
from log(age)=5.00 up to log(age)=10.18, the oldest age limit
depending on the IMF. Stellar clusters are assumed formed by 1Msun.
* Table 2 gives the number of some types of stars which are in each
isochrone of a given age and metallicity.
* Table 3, as subdirectories z*, gives the HR diagrams obtained with
the evolutionary models for a cluster of 1M☉.
There are a total of 636 tables, 106 for each one of the 6
metallicities Z=0.0001, 0.0004, 0.004, 0.008, 0.02 and 0.05.
The 106 tables correspond to 106 different evolutionary ages,
which are given in ages.dat file. In each HR table we give the
actual mass of each star, the input effective temperature,
gravity and luminosity for each star and the modeled effective
temperature, gravity and luminosity, the mass loss rate, the
errors of effective temperature and gravity given as the
difference between the input and the modeled values, a flag
(NS= normal star, WC=type C Wolf Rayet star, WN=type N Wolf Rayet
star, or PN= planetary nebula) defining the type of star, and 6
columns given the numbers of stars for 6 Initial Mass functions.
* Table 4 shows the ejected mechanical energy by the clusters.
* Table 5 gives the number of ionizing photons produced by these stellar
clusters.
* Table 7 gives the information related on Hβ and Hα in
emission and absorption (intensities of lines and equivalent widths).
* Table 8 and 9 give the magnitudes in the Johnson and SDSS systems,
respectively. The values are normalized to a cluster of 1M☉.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 95 3746 Type of stars in each age stellar cluster
table4.dat 63 3746 Mechanical energy ejected by the cluster
table5.dat 49 3746 Ionizing photons number
table7.dat 161 3746 Hβ and Hα in emission and absorption
table8.dat 109 3746 Johnson system Vega magnitudes
table9.dat 61 3746 SDSS system AB magnitudes
ages.dat 113 106 Ages for which there are a table HR
z0.0001/* . 106 HR tables for Z=0.0001
z0.0004/* . 106 HR tables for Z=0.0004
z0.0040/* . 106 HR tables for Z=0.0040
z0.0080/* . 106 HR tables for Z=0.0080
z0.0200/* . 106 HR tables for Z=0.0200
z0.0500/* . 106 HR tables for Z=0.0500
files/* . 6 tar file for each metallicity
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Se also:
VI/102 : Geneva stellar evolution tracks and isochrones (Lejeune+, 2001)
VI/109 : Population Synthesis Models at very low metallicities (Schaerer, 2003)
J/A+AS/125/229 : A standard stellar library (Lejeune+ 1997)
J/A+AS/130/65 : A standard stellar library. II. (Lejeune+ 1998)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- IMF Initial Mass Function Type (G1)
5- 8 F4.2 solMass Mlow Low mass limit of the IMF
10- 12 I3 solMass Mup Upper mass limit of the IMF
14- 19 F6.4 --- Z Metallicity of stellar populations
21- 25 F5.2 [yr] logAge Age of each SSP in logarithmic scale
27- 35 E9.4 --- Nmas Number of massive stars (M>20M☉) (G2)
37- 45 E9.4 --- NOB Number of OB stars (G2)
47- 55 E9.4 --- NWN Number of WN-WR stars (G2)
57- 65 E9.4 --- NWC Number of WC-WR stars (G2)
67- 75 E9.4 --- NRSG Number of Red SuperGiant stars (G2)
77- 85 E9.4 --- NSNII Number of type II supernovae (G2)
87- 95 E9.4 --- NPN Number of planetary nebula (G2)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- IMF Initial Mass Function Type (G1)
5- 8 F4.2 solMass Mlow Low mass limit of the IMF
10- 12 I3 solMass Mup Upper mass limit of the IMF
14- 19 F6.4 --- Z Metallicity of stellar populations
21- 25 F5.2 [yr] logAge Age of each SSP in logarithmic scale
27- 35 E9.3 10+40J ESN Mechanical energy ejected by SNs
37- 45 E9.3 10+40J Ewind Mechanical energy ejected by massive star winds
47- 55 E9.3 10+40J Etot Total energy injected in the star cluster
58- 63 F6.2 pc Rpc Radius of the HII region
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- IMF Initial Mass Function Type (G1)
5- 8 F4.2 solMass Mlow Low mass limit of the IMF
10- 12 I3 solMass Mup Upper mass limit of the IMF
14- 19 F6.4 --- Z Metallicity of stellar populations
21- 25 F5.2 [yr] logAge Age of each SSP in logarithmic scale
27- 31 F5.2 [s-1] logQ(HeII) logarithmic of the ionizing photons for HeII
33- 37 F5.2 [s-1] logQ(OI) logarithmic of the ionizing photons for OI
39- 43 F5.2 [s-1] logQ(HeI) logarithmic of the ionizing photons for HeI
45- 49 F5.2 [s-1] logQ(H) logarithmic of the ionizing photons for HI
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- IMF Initial Mass Function Type
5- 8 F4.2 solMass Mlow Low mass limit of the IMF
10- 12 I3 solMass Mup Upper mass limit of the IMF
14- 19 F6.4 --- Z Metallicity of stellar populations
21- 25 F5.2 [yr] logAge Age of each SSP in logarithmic scale
27- 36 E10.5 solLum IHb:e Luminosity Hβ in emission
38- 48 E11.5 solLum IHb:a Luminosity Hβ in absorption
50- 59 E10.5 10solLum/nm ScHb Luminosity of the Continuum around
Hβ (in L☉/Å)
61- 70 E10.5 0.1nm EWHb:e Equivalent width of Hβ line in
emission
72- 82 E11.5 0.1nm EWHb:a Equivalent width of Hβ line in
absorption
84- 94 E11.5 0.1nm EWHb Total Equivalent width of Hβ line
96-105 E10.5 solLum IHa:e Luminosity Hα in emission
107-116 E10.5 solLum IHa:a Luminosity Hα in absorption
118-127 E10.5 10solLum/nm ScHa Luminosity of the Continuum around
Hα (in L☉/Å)
129-138 E10.5 0.1nm EWHa:e Equivalent width of Hα line in
emission
140-149 E10.5 0.1nm EWHa:a Equivalent width of Hα line in
absorption
151-161 E11.5 0.1nm EWHa Total Equivalent width of Hα line
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- IMF Initial Mass Function Type
5- 8 F4.2 solMass Mlow Low mass limit of the IMF
10- 12 I3 solMass Mup Upper mass limit of the IMF
14- 19 F6.4 --- Z Metallicity of stellar populations
21- 25 F5.2 [yr] logAge Age of each SSP in logarithmic scale
27- 32 F6.3 mag UV1MAG Absolute magnitude UV1 in HST system
34- 39 F6.3 mag UV2MAG Absolute magnitude UV2 in HST system
41- 46 F6.3 mag UMAG Absolute magnitude U in the Johnson System
48- 53 F6.3 mag B1MAG Absolute magnitude B in the Johnson System (1)
55- 60 F6.3 mag B2MAG Absolute magnitude B in the Johnson System (1)
62- 67 F6.3 mag VMAG Absolute magnitude V in the Johnson System
69- 74 F6.3 mag RMAG Absolute magnitude R in the Johnson System
76- 81 F6.3 mag IMAG Absolute magnitude I in the Johnson System
83- 88 F6.3 mag JMAG Absolute magnitude J in the Johnson System
90- 95 F6.3 mag HMAG Absolute magnitude H in the Johnson System
97-102 F6.3 mag KMAG Absolute magnitude K in the Johnson System
104-109 F6.3 mag LMAG Absolute magnitude L in the Johnson System
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Note (1): B1MAG for the computation of U-B, and B2MAG for B-V
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- IMF Initial Mass Function Type
5- 8 F4.2 solMass Mlow Low mass limit of the IMF
10- 12 I3 solMass Mup Upper mass limit of the IMF
14- 19 F6.4 --- Z Metallicity of stellar populations
21- 25 F5.2 [yr] logAge Age of each SSP in logarithmic scale
28- 33 F6.3 mag uMAG Absolute magnitude u in SDSS system
35- 40 F6.3 mag gMAG Absolute magnitude g in SDSS system
42- 47 F6.3 mag rMAG Absolute magnitude r in SDSS system
49- 54 F6.3 mag iMAG Absolute magnitude i in SDSS system
56- 61 F6.3 mag zMAG Absolute magnitude z in SDSS system
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Byte-by-byte Description of file: ages.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 F5.2 [yr] logAge Logarithm of the age
7- 23 A17 --- FileName.0001 Name of the file in subdirectory z0.0001
25- 41 A17 --- FileName.0004 Name of the file in subdirectory z0.0004
43- 59 A17 --- FileName.0040 Name of the file in subdirectory z0.0040
61- 77 A17 --- FileName.0080 Name of the file in subdirectory z0.0080
79- 95 A17 --- FileName.0200 Name of the file in subdirectory z0.0200
97-113 A17 --- FileName.0500 Name of the file in subdirectory z0.0500
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Byte-by-byte Description of file(#): z*/*
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
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1- 8 F8.3 solMass Mass Actual mass of star
10- 19 F10.2 K TeffHR Effective temperature of the input HR
21- 26 F6.2 [cm/s2] loggHR logarithm of the gravity of the input HR
28- 36 F9.4 [solLum] log(L)HR logarithm of the luminosity of the
input HR
39- 48 F10.2 K TeffMd Effective temperature of the modeled HR
50- 55 F6.2 [cm/s2] loggMd logarithm of the gravity of the modeled HR
57- 66 F10.4 [solLum] log(L)Md logarithm of the luminosity of the
modeled HR
72- 79 F8.3 [solMass/yr] log(M) logarithm of the mass loss rate
84- 91 F8.2 K e_Teff Error associated with the Teff asignation
94-101 F8.4 cm/s e_logg Error associated with the logg asignation
104-105 A2 --- Type Symbol associated with the type f star (1)
107-115 E9.4 --- NSal1 Number of stars in that mass interval
for IMF SAL1
118-126 E9.4 --- NSal2 Number of stars in that mass interval
for IMF SAL2
129-137 E9.4 --- NFer Number of stars in that mass interval
for IMF FER
140-148 E9.4 --- NKro Number of stars in that mass interval
for IMF KRO
151-159 E9.4 --- NCha Number of stars in that mass interval
for IMF CHA
162-170 E9.4 --- NSal3 Number of stars in that mass interval
for IMF SAL3
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Note (1): Type of star as follows:
NS = normal star
WC = type C Wolf Rayet star
WN = type N Wolf Rayet star
PN = planetary nebula
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Global notes:
Note (G1): Initial Mass Function Type as follows:
CHA = Charbier, 2003ApJ...586L.133C 2003ApJ...586L.133C
FER = Ferrini et al., 1990A&A...231.391F
KRO = Kroupa, 2001MNRAS.322..231K 2001MNRAS.322..231K
SAL = Salpeter, 1955ApJ...121..161S 1955ApJ...121..161S
Note (G2): values normalized to a cluster of 1M☉.
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Acknowledgements:
Mercedes Molla mercedes.molla(at)ciemat.es
History:
* 30-Jul-2009: original version
* 09-Apr-2010: Table 3 (subdirectories z*) added
* 29-May-2012: Table 9 updated (from author)
* 19-Mar-2013: Table 7 updated (from author)
(End) Patricia Vannier [CDS] 30-Jul-2009