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Astronomy & Astrophysics

Volume 470 / No 3 (August II 2007)

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Astrophysical processes

Cosmology (including clusters of galaxies)

Extragalactic astronomy

Galactic structure, stellar clusters, and populations

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The substellar mass function in σ Orionis - II. Optical, near-infrared and IRAC/Spitzer photometry of young cluster brown dwarfs and planetary-mass objects p. 903

Published online: 16 May 2007

Interstellar and circumstellar matter

Stellar structure and evolution

Stellar atmospheres

The Sun

Planets and planetary systems

Astronomical instrumentation

Online catalogs and data