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Astronomy and Astrophysics

Vol. 503, No. 1 (August III 2009)

Stars (L) and gas (R) in a head-on collision model for NGC 1961 (top: density, bottom: velocity) (F. Combes, et al., p. 84)
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-  Letters
Testing the Newton second law in the regime of small accelerations     p. L1
V. A. De Lorenci, M. Faúndez-Abans, and J. P. Pereira
Published online: 4 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811520
Abstract | Full HTML | PDF (113.2 KB) | PS (52.48 KB) | References | SIMBAD record | NASA ADS Abstract Service

Dust retention in protoplanetary disks     p. L5
T. Birnstiel, C. P. Dullemond, and F. Brauer
Published online: 15 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912452
Abstract | Full HTML | PDF (150.6 KB) | PS (87.20 KB) | References | NASA ADS Abstract Service

RR Lyrae stars in the inner LMC: Where did they form?     p. L9
A. Subramaniam and S. Subramanian
Published online: 15 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912694
Abstract | Full HTML | PDF (160.5 KB) | PS (121.8 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Astrophysical processes
Non-linear evolution of the diocotron instability in a pulsar electrosphere: two-dimensional particle-in-cell simulations     p. 1
J. Pétri
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911778
Abstract | Full HTML | PDF (4.410 MB) | PS (6.266 MB) | References | NASA ADS Abstract Service

High-energy pulses and phase-resolved spectra by inverse Compton emission in the pulsar striped wind - Application to Geminga     p. 13
J. Pétri
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811010
Abstract | Full HTML | PDF (157.3 KB) | PS (268.9 KB) | References | SIMBAD record | NASA ADS Abstract Service

Dynamical feedback of the curvature drift instability on its saturation process     p. 19
Z. Osmanov, D. Shapakidze, and G. Machabeli
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912113
Abstract | Full HTML | PDF (199.2 KB) | PS (91.01 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Cosmology (including clusters of galaxies)
The onset of star formation in primordial haloes     p. 25
U. Maio, B. Ciardi, N. Yoshida, K. Dolag, and L. Tornatore
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912234
Abstract | Full HTML | PDF (1.087 MB) | PS (2.708 MB) | References | NASA ADS Abstract Service

The radial dependence of temperature and iron abundance - Galaxy clusters from z = 0.14 to z = 0.89     p. 35
S. Ehlert and M. P. Ulmer
Published online: 15 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200809809
Abstract | Full HTML | PDF (234.9 KB) | PS (94.82 KB) | References | SIMBAD record | NASA ADS Abstract Service

Chemistry of heavy elements in the Dark Ages     p. 47
P. Vonlanthen, T. Rauscher, C. Winteler, D. Puy, M. Signore, and V. Dubrovich
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811297
Abstract | Full HTML | PDF (1.059 MB) | PS (1.087 MB) | References | SIMBAD record | NASA ADS Abstract Service


-  Extragalactic astronomy
SBS 0335-052E+W: deep VLT/FORS+UVES spectroscopy of the pair of the lowest-metallicity blue compact dwarf galaxies     p. 61
Y. I. Izotov, N. G. Guseva, K. J. Fricke, and P. Papaderos
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911965
Abstract | Full HTML | PDF (1.157 MB) | PS (622.8 KB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service

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Molecular gas in NUclei of GAlaxies (NUGA) - XII. The head-on collision in NGC 1961     p. 73
F. Combes, A. J. Baker, E. Schinnerer, S. García-Burillo, L. K. Hunt, F. Boone, A. Eckart, R. Neri, and L. J. Tacconi
Published online: 23 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912181
Abstract | Full HTML | PDF (2.272 MB) | PS (2.623 MB) | References | SIMBAD record | NASA ADS Abstract Service

The star cluster population of the spiral galaxy NGC 3370     p. 87
M. Cantiello, E. Brocato, and J. P. Blakeslee
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912045
Abstract | Full HTML | PDF (1.379 MB) | PS (7.415 MB) | References | Tables at CDS | SIMBAD record | NASA ADS Abstract Service

Stochastic model of optical variability of BL Lacertae     p. 103
D. A. Blinov and V. A. Hagen-Thorn
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912677
Abstract | Full HTML | PDF (262.2 KB) | PS (1.151 MB) | References | SIMBAD record | NASA ADS Abstract Service


-  Galactic structure, stellar clusters, and populations
Spitzer/IRAC view of Sh 2-284 - Searching for evidence of triggered star formation in an isolated region in the outer Milky Way     p. 107
E. Puga, S. Hony, C. Neiner, A. Lenorzer, A.-M. Hubert, L. B. F. M. Waters, F. Cusano, and V. Ripepi
Published online: 19 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200810664
Abstract | Full HTML | PDF (3.787 MB) | PS (29.24 MB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service

Sulfur in the globular clusters 47 Tucanae and NGC 6752     p. 121
L. Sbordone, M. Limongi, A. Chieffi, E. Caffau, H.-G. Ludwig, and P. Bonifacio
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811513
Abstract | Full HTML | PDF (352.3 KB) | PS (224.7 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Interstellar and circumstellar matter
A new candidate supernova remnant G 70.5+1.9     p. 129
F. Mavromatakis, P. Boumis, J. Meaburn, and A. Caulet
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912211
Abstract | Full HTML | PDF (781.0 KB) | PS (3.152 MB) | References | SIMBAD record | NASA ADS Abstract Service


-  Stellar structure and evolution
Relative frequencies of supernovae types: dependence on host galaxy magnitude, galactocentric radius, and local metallicity     p. 137
S. Boissier and N. Prantzos
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811234
Abstract | Full HTML | PDF (549.1 KB) | PS (260.0 KB) | References | SIMBAD record | NASA ADS Abstract Service

Hot subdwarfs from the stable Roche lobe overflow channel     p. 151
S. Yu and L. Li
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200809454
Abstract | Full HTML | PDF (590.0 KB) | PS (564.8 KB) | References | SIMBAD record | NASA ADS Abstract Service

Close binary and other variable stars in the solar-age Galactic open cluster M 67     p. 165
K. Yakut et al.
Published online: 23 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911918
Abstract | Full HTML | PDF (478.6 KB) | PS (400.0 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Stellar atmospheres
New extended atomic data in cool star model atmospheres - Using Kurucz's new iron data in MAFAGS-OS models     p. 177
F. Grupp, R. L. Kurucz, and K. Tan
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912302
Abstract | Full HTML | PDF (165.8 KB) | PS (117.0 KB) | References | NASA ADS Abstract Service

Press Release
Spatially resolving the inhomogeneous structure of the dynamical atmosphere of Betelgeuse with VLTI/AMBER     p. 183
K. Ohnaka et al.
Published online: 22 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912247
Abstract | Full HTML | PDF (518.0 KB) | PS (295.6 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  The Sun
Long-term asymmetry in the wings of the butterfly diagram     p. 197
N. V. Zolotova, D. I. Ponyavin, N. Marwan, and J. Kurths
Published online: 15 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811430
Abstract | Full HTML | PDF (280.3 KB) | PS (832.6 KB) | References | NASA ADS Abstract Service

Observations of a subcritical switch-on shock     p. 203
H. Q. Feng, J. M. Wang, and J. K. Chao
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811217
Abstract | Full HTML | PDF (110.1 KB) | PS (50.85 KB) | References | NASA ADS Abstract Service

Study of backward propagating and second harmonic Langmuir waves by 2D particle-in-cell simulation     p. 207
Y. Huang and G. L. Huang
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811593
Abstract | Full HTML | PDF (290.6 KB) | PS (418.2 KB) | References | NASA ADS Abstract Service

On the nature of kink MHD waves in magnetic flux tubes     p. 213
M. Goossens, J. Terradas, J. Andries, I. Arregui, and J. L. Ballester
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912399
Abstract | Full HTML | PDF (320.5 KB) | PS (159.0 KB) | References | NASA ADS Abstract Service

On the continuum intensity distribution of the solar photosphere     p. 225
S. Wedemeyer-Böhm and L. Rouppe van der Voort
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911983
Abstract | Full HTML | PDF (1.311 MB) | PS (998.0 KB) | References | NASA ADS Abstract Service

Corrections of Sun-as-a-star p-mode frequencies for effects of the solar cycle     p. 241
A.-M. Broomhall, W. J. Chaplin, Y. Elsworth, S. T. Fletcher, and R. New
Published online: 23 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912286
Abstract | Full HTML | PDF (130.7 KB) | PS (109.5 KB) | References | NASA ADS Abstract Service


-  Planets and planetary systems
A possible architecture of the planetary system HR 8799     p. 247
M. Reidemeister, A. V. Krivov, T. O. B. Schmidt, S. Fiedler, S. Müller, T. Löhne, and R. Neuhäuser
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912055
Abstract | Full HTML | PDF (2.398 MB) | PS (6.955 MB) | References | SIMBAD record | NASA ADS Abstract Service

Statistical analysis of micrometeoroids flux on Mercury     p. 259
P. Borin, G. Cremonese, F. Marzari, M. Bruno, and S. Marchi
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912080
Abstract | Full HTML | PDF (197.3 KB) | PS (121.1 KB) | References | NASA ADS Abstract Service

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Resolving the hot dust around HD69830 and η Corvi with MIDI and VISIR     p. 265
R. Smith, M. C. Wyatt, and C. A. Haniff
Published online: 2 July 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911626
Abstract | Full HTML | PDF (394.1 KB) | PS (231.6 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Celestial mechanics and astrometry
Kinematic analysis and membership status of TWA22 AB     p. 281
R. Teixeira, C. Ducourant, G. Chauvin, A. Krone-Martins, M. Bonnefoy, and I. Song
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912173
Abstract | Full HTML | PDF (259.4 KB) | PS (396.4 KB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service

Free core nutation resonance parameters from VLBI and superconducting gravimeter data     p. 287
S. Rosat and S. B. Lambert
Published online: 15 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811489
Abstract | Full HTML | PDF (178.1 KB) | PS (295.1 KB) | References | NASA ADS Abstract Service


-  Atomic, molecular, and nuclear data
Stark broadening tables for the helium I 447.1 line - Application to weakly coupled plasmas diagnostics     p. 293
M. A. Gigosos and M. Á. González
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912243
Abstract | Full HTML | PDF (771.1 KB) | PS (3.306 MB) | References | Tables at CDS | SIMBAD record | NASA ADS Abstract Service


-  Astronomical instrumentation
Extreme coronagraphy with an adaptive hologram - Simulations of exo-planet imaging     p. 301
D. Ricci, H. Le Coroller, and A. Labeyrie
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811529
Abstract | Full HTML | PDF (526.2 KB) | PS (2.781 MB) | References | SIMBAD record | NASA ADS Abstract Service