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Astronomy & Astrophysics

Volume 550 (February 2013)


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Letters

Astrophysical processes

Cosmology (including clusters of galaxies)

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Planck intermediate results - II. Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clusters A128

DOI: https://doi.org/10.1051/0004-6361/201219361
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Planck intermediate results - VII. Statistical properties of infrared and radio extragalactic sources from the Planck Early Release Compact Source Catalogue at frequencies between 100 and 857 GHz A133

DOI: https://doi.org/10.1051/0004-6361/201220053

Extragalactic astronomy

Press Release
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Measurement of the extragalactic background light imprint on the spectra of the brightest blazars observed with H.E.S.S. A4

DOI: https://doi.org/10.1051/0004-6361/201220355

Galactic structure, stellar clusters and populations

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The VLT-FLAMES Tarantula Survey - VIII. Multiplicity properties of the O-type star population A107

DOI: https://doi.org/10.1051/0004-6361/201219621

Interstellar and circumstellar matter

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The chemistry of ions in the Orion Bar I. – CH+, SH+, and CF+ - The effect of high electron density and vibrationally excited H2 in a warm PDR surface A96

DOI: https://doi.org/10.1051/0004-6361/201220519
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The VLT-FLAMES Tarantula Survey - IX. The interstellar medium seen through diffuse interstellar bands and neutral sodium A108

DOI: https://doi.org/10.1051/0004-6361/201220210

Stellar structure and evolution

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The VLT-FLAMES Tarantula Survey - X. Evidence for a bimodal distribution of rotational velocities for the single early B-type stars A109

DOI: https://doi.org/10.1051/0004-6361/201220273

Stellar atmospheres

The Sun

Planets and planetary systems

Celestial mechanics and astrometry

Atomic, molecular, and nuclear data

Astronomical instrumentation

Catalogs and data

Numerical methods and codes