J/A+A/402/425 BVIJHK properties of Single Stellar Populations (Mouhcine+, 2003)
Photometric properties of Single Stellar Populations:
From Z/Z☉=1/50 to Z/Z☉=2.5.
Mouhcine M., Lancon A.
<Astron. Astrophys. 402, 425 (2003)>
=2003A&A...402..425M 2003A&A...402..425M
ADC_Keywords: Models, evolutionary ; Associations, stellar ;
Photometry, UBVRIJKLMNH
Keywords: stars: AGB and post-AGB - galaxies: star clusters -
galaxies: stellar content - galaxies: evolution
Abstract:
We describe a large grid of photometric properties of single stellar
populations that focuses on the near infrared properties of
intermediate age populations. The underlying model was presented in
recent articles, where we compared its predictions with observations
of properties of star clusters and of asymptotic giant branch
populations of Local Group galaxies. The grid is made available in
tabular form. We present the time evolution of optical and
near-infrared broadband colours in the BVIJHK passbands, with ages
ranging from 50Myr to 15Gyr, and for initial chemical compositions
[Z=0.0004, Y=0.23], [Z=0.004, Y=0.24], [Z=0.008, Y=0.25], [Z=0.02,
Y=0.28], and [Z= 0.05, Y=0.352]. The evolution of the stellar
mass-to-light ratio in the V and K passbands is also provided. All the
stellar models are followed from the zero age main sequence (ZAMS) to
the central carbon ignition for massive stars, or to the end of the
thermally pulsing regime of the asymptotic giant branch phase (TP-AGB)
for low and intermediate mass stars.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
models.dat 68 135 Evolutionary sequences
--------------------------------------------------------------------------------
See also:
VI/96 : Evolutionary sequences (Fagotto+, 1993-1996)
Byte-by-byte Description of file: models.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 F6.4 --- Z Initial Z abundance (1)
8- 12 F5.3 --- Y Initial Y abundance (1)
14- 18 F5.2 Gyr Age Age
20- 25 F6.3 mag B-V B-V colour index
27- 31 F5.3 mag V-I V-I colour index
33- 37 F5.3 mag V-K V-K colour index
39- 43 F5.3 mag J-H J-H colour index
45- 49 F5.3 mag H-K H-K colour index
51- 56 F6.3 solMass/solLum M/L(V) Mass-to-luminosity ratio in V band
58- 62 F5.3 solMass/solLum M/L(K) Mass-to-luminosity ratio in K band
64- 68 F5.3 solMass/solLum M/LBol Mass-to-bolometric luminosity ratio
--------------------------------------------------------------------------------
Note (1): Models are for the initial chemical conditions:
Z= 0.0004 Y= 0.23
Z= 0.004 Y= 0.24
Z= 0.008 Y= 0.25
Z= 0.02 Y= 0.28
Z= 0.05 Y= 0.352
--------------------------------------------------------------------------------
Acknowledgements: Mustapha Mouhcine
(End) Patricia Bauer [CDS] 25-Sep-2003