2008A&A...484..815B


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.28CET22:33:30

2008A&A...484..815B - Astronomy and Astrophysics, volume 484, 815-830 (2008/6-4)

Scaled solar tracks and isochrones in a large region of the Z-Y plane. I. From the ZAMS to the TP-AGB end for 0.15-2.5M stars.

BERTELLI G., GIRARDI L., MARIGO P. and NASI E.

Abstract (from CDS):

In many astrophysical contexts, the helium content of stars may differ significantly from those usually assumed in evolutionary calculations. In order to improve upon this situation, we have computed tracks and isochrones in the range of initial masses 0.15-20M for a grid of 39 chemical compositions with the metal content Z between 0.0001 and 0.070 and helium content Y between 0.23 and 0.46. The Padova stellar evolution code has been implemented with updated physics. New synthetic TP-AGB models allow the extension of stellar models and isochrones until the end of the thermal pulses along the AGB. Software tools for the bidimensional interpolation (in Y and Z) of the tracks have been tuned. This first paper presents tracks for low mass stars (from 0.15 to 2.5M) with scaled-solar abundances and the corresponding isochrones from very old ages down to about 1Gyr. Tracks and isochrones are made available in tabular form for the adopted grid of chemical compositions in the plane Z-Y. As soon as possible an interactive web interface will allow users to obtain isochrones of any chemical composition and also simulated stellar populations with different Y(Z) helium-to-metal enrichment laws.

Abstract Copyright:

Journal keyword(s): stars: evolution - stars: AGB and post-AGB

VizieR on-line data: <Data which should be available at CDS were never supplied by the authors>

Simbad objects: 7

goto Full paper

goto View the reference in ADS

Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5793 1
2 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2714 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15060 1
4 NGC 1978 GlC 05 28 45.330 -66 14 12.04   10.7 10.70     ~ 273 0
5 NGC 2808 GlC 09 12 03.10 -64 51 48.6   7.77 5.69     ~ 1258 0
6 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 3039 0
7 NGC 6441 GlC 17 50 13.06 -37 03 05.2   9.26 8.00     ~ 775 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2008A&A...484..815B and select 'bookmark this link' or equivalent in the popup menu


2020.11.28-22:33:30

© Université de Strasbourg/CNRS

    • Contact