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Theoretical isochrones in several photometric systems: I. Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey filter sets

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Girardi, L., Bertelli, G., Bressan, A., Chiosi, C., Groenewegen, M. A. T., Marigo, P., Salasnich, B., Weiss, A.·2002·Astronomy & Astrophysics

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 , , and . 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.

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Metadata

Authors
Girardi, L., Bertelli, G., Bressan, A., Chiosi, C., Groenewegen, M. A. T., Marigo, P., Salasnich, B., & Weiss, A.
Venue
Astronomy & Astrophysics
Publisher
EDP Sciences
Published
2002-07-29
Volume
391
Issue
1
Pages
195-212
ISSN
  • 0004-6361 (ISSN-L)
  • 1432-0746
OpenAlex
W1569860697
Cited by
1,263
References
2
FWCI
37.02
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Theoretical isochrones in several photometric systems: I. Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey filter sets. https://app.cochat.ai/papers/10.1051/0004-6361:20020612
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Girardi, L., Bertelli, G., Bressan, A., Chiosi, C., Groenewegen, M. A. T., Marigo, P., Salasnich, B., & Weiss, A. (2002). Theoretical isochrones in several photometric systems: I. Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey filter sets. Astronomy & Astrophysics. https://doi.org/10.1051/0004-6361%3A20020612

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