Title: Theoretical isochrones in several photometric systems - I. Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey filter sets
Authors: Girardi, L ×
Bertelli, G
Bressan, A
Chiosi, C
Groenewegen, Martin
Marigo, P
Salasnich, B
Weiss, A #
Issue Date: 2002
Publisher: E D P SCIENCES
Series Title: Astronomy & Astrophysics vol:391 issue:1 pages:195-212
Conference: date:Univ Padua, Dipartimento Astron, I-35122 Padua, Italy; Osserv Astron Trieste, I-34131 Trieste, Italy; CNR, Ist Astrofis Sapziale, I-00133 Rome, Italy; Osserv Astron Padova, I-35122 Padua, Italy; Inst Sterrenkunde, PACS ICC Team, B-3001 Heverlee, Belgium; European So Observ, D-85740 Garching, Germany; Max Planck Inst Astrophys, D-85740 Garching, Germany
Abstract: We provide tables of theoretical isochrones in several photometric systems. To this aim, the following steps are followed: (1) first, we re-write the formalism for converting synthetic stellar spectra into tables of bolometric corrections. The resulting formulas can be applied to any photometric system, provided that the zero-points are specified by means of either ABmag, STmag, VEGAmag, or a standard star system that includes well-known spectrophotometric standards. Interstellar absorption can be considered in a self-consistent way. (2) We assemble an extended and updated library of stellar intrinsic spectra. It is mostly based on "non-overshooting" ATLAS9 models, suitably extended to both low and high effective temperatures. This offers an excellent coverage of the parameter space of T-eff, log g, and[M/H]. We briefly discuss the main uncertainties and points still deserving more improvement. (3) From the spectral library, we derive tables of bolometric corrections for Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey systems (this latter consisting on the WFI, EMMI, and SOFI filter sets). (4) These tables are used to convert several sets of Padova isochrones into the corresponding absolute magnitudes and colours, thus providing a useful database for several astrophysical applications. All data files are made available in electronic form.
ISSN: 0004-6361
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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