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Astronomy & Astrophysics

Vol. 454, No. 3 (August II 2006)

An exceptional X-ray view of a young open cluster (Sana, H., et al., p. 1051)
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-  Letters
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The bright optical flash from GRB 060117    p. L119
M. Jelínek, M. Prouza, P. Kubánek, R. Hudec, M. Nekola, J. Řídký, J. Grygar, M. Boháčová, A. J. Castro-Tirado, J. Gorosabel, et al. (12 more)
DOI: http://dx.doi.org/10.1051/0004-6361:20065092
Abstract Full HTML PDF (473 KB) PS (196 KB) References SIMBAD record NASA ADS Abstract Service

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Are short γ-ray bursts collimated? GRB 050709, a flare but no break    p. L123
D. Watson, J. Hjorth, P. Jakobsson, D. Xu, J. P. U. Fynbo, J. Sollerman, C. C. Thöne and K. Pedersen
DOI: http://dx.doi.org/10.1051/0004-6361:20065380
Abstract Full HTML PDF (117 KB) PS (246 KB) References SIMBAD record NASA ADS Abstract Service

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[Ar III]/[O III] and [S III]/[O III]: well-behaved oxygen abundance indicators for HII regions and star forming galaxies    p. L127
G. Stasińska
DOI: http://dx.doi.org/10.1051/0004-6361:20065516
Abstract Full HTML PDF (333 KB) PS (1.22 MB) References NASA ADS Abstract Service

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The impact of magnetic field on the cluster M – T relation    p. L131
S. Colafrancesco and F. Giordano
DOI: http://dx.doi.org/10.1051/0004-6361:20065404
Abstract Full HTML PDF (162 KB) PS (61.6 KB) References NASA ADS Abstract Service



-  Astrophysical processes
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Cosmic rays X. The cosmic ray knee and beyond: diffusive acceleration at oblique shocks    p. 687
A. Meli and P. L. Biermann
DOI: http://dx.doi.org/10.1051/0004-6361:20064964
Abstract Full HTML PDF (178 KB) PS (157 KB) References NASA ADS Abstract Service

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How accurate are the time delay estimates in gravitational lensing?    p. 695
J. C. Cuevas-Tello, P. Tiňo and S. Raychaudhury
DOI: http://dx.doi.org/10.1051/0004-6361:20054652
Abstract Full HTML PDF (419 KB) PS (190 KB) References NASA ADS Abstract Service



-  Cosmology (including clusters of galaxies)
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Cosmological constraints on f(R) gravity theories within the Palatini approach    p. 707
M. Amarzguioui, Ø. Elgarøy, D. F. Mota and T. Multamäki
DOI: http://dx.doi.org/10.1051/0004-6361:20064994
Abstract Full HTML PDF (208 KB) PS (158 KB) References NASA ADS Abstract Service

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Erratum
Erratum: Probing dark matter caustics with weak lensing    p. 715
R. Gavazzi, R. Mohayaee and B. Fort
DOI: http://dx.doi.org/10.1051/0004-6361:20053557e
Abstract Full HTML PDF (243 KB) PS (70.7 KB) Online Material NASA ADS Abstract Service



-  Extragalactic astronomy
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The evolved asymptotic giant branch stars in the central bar of the dwarf irregular galaxy NGC 6822    p. 717
A. Kang, Y.-J. Sohn, H.-I. Kim, J. Rhee, J.-W. Kim, N. Hwang, M. G. Lee, Y.-C. Kim and M.-S. Chun
DOI: http://dx.doi.org/10.1051/0004-6361:20054763
Abstract Full HTML PDF (5.02 MB) PS (4.51 MB) References Tables at CDS SIMBAD record NASA ADS Abstract Service

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European VLBI network observations of fourteen GHz-peaked-spectrum radio sources at 5 GHz    p. 729
L. Xiang, C. Reynolds, R. G. Strom and D. Dallacasa
DOI: http://dx.doi.org/10.1051/0004-6361:20053885
Abstract Full HTML PDF (564 KB) PS (577 KB) References SIMBAD record NASA ADS Abstract Service

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The structure and X-ray radiation spectra of illuminated accretion disks in AGN - III. Modeling fractional variability    p. 741
R. W. Goosmann, B. Czerny, M. Mouchet, G. Ponti, M. Dovčiak, V. Karas, A. Różańska and A.-M. Dumont
DOI: http://dx.doi.org/10.1051/0004-6361:20054344
Abstract Full HTML PDF (553 KB) PS (366 KB) References SIMBAD record NASA ADS Abstract Service

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GRB 051210: Swift detection of a short gamma ray burst    p. 753
V. La Parola, V. Mangano, D. Fox, B. Zhang, H. A. Krimm, G. Cusumano, T. Mineo, D. N. Burrows, S. Barthelmy, S. Campana, et al. (12 more)
DOI: http://dx.doi.org/10.1051/0004-6361:20065083
Abstract Full HTML PDF (235 KB) PS (77.3 KB) References SIMBAD record NASA ADS Abstract Service

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The structure of galactic disks - Studying late-type spiral galaxies using SDSS    p. 759
M. Pohlen and I. Trujillo
DOI: http://dx.doi.org/10.1051/0004-6361:20064883
Abstract Full HTML PDF (14.3 MB) PS (68.6 MB) References Online Material SIMBAD record NASA ADS Abstract Service

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Erratum
Erratum: Optical novae: the major class of supersoft X-ray sources in M 31    p. 773
W. Pietsch, J. Fliri, M. J. Freyberg, J. Greiner, F. Haberl, A. Riffeser and G. Sala
DOI: http://dx.doi.org/10.1051/0004-6361:20053127e
Abstract Full HTML PDF (27.8 KB) PS (12.0 KB) NASA ADS Abstract Service



-  Galactic structure, stellar clusters, and populations
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Observations of 14 young open star clusters with the HEGRA system of Cherenkov telescopes    p. 775
F. Aharonian, A. Akhperjanian, M. Beilicke, K. Bernlöhr, H.-G. Börst, H. Bojahr, O. Bolz, T. Coarasa, J. L. Contreras, J. Cortina, et al. (42 more)
DOI: http://dx.doi.org/10.1051/0004-6361:20053234
Abstract Full HTML PDF (106 KB) PS (49.8 KB) References SIMBAD record NASA ADS Abstract Service


-  Interstellar and circumstellar matter
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2MASS wide field extinction maps - I. The Pipe nebula    p. 781
M. Lombardi, J. Alves and C. J. Lada
DOI: http://dx.doi.org/10.1051/0004-6361:20042474
Abstract Full HTML PDF (5.47 MB) PS (4.36 MB) References SIMBAD record NASA ADS Abstract Service

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Stationary field-aligned MHD flows at astropauses and in astrotails - Principles of a counterflow configuration between a stellar wind and its interstellar medium wind    p. 797
D. H. Nickeler, J. P. Goedbloed and H.-J. Fahr
DOI: http://dx.doi.org/10.1051/0004-6361:20053062
Abstract Full HTML PDF (1.54 MB) PS (1.69 MB) References Online Material NASA ADS Abstract Service

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The fate of discs around massive stars in young clusters    p. 811
S. Pfalzner, C. Olczak and A. Eckart
DOI: http://dx.doi.org/10.1051/0004-6361:20064905
Abstract Full HTML PDF (86.2 KB) PS (47.3 KB) References SIMBAD record NASA ADS Abstract Service

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The nature of turbulence in OMC1 at the scale of star formation: observations and simulations    p. 815
M. Gustafsson, A. Brandenburg, J. L. Lemaire and D. Field
DOI: http://dx.doi.org/10.1051/0004-6361:20054658
Abstract Full HTML PDF (2.14 MB) PS (1.50 MB) References Online Material SIMBAD record NASA ADS Abstract Service

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Optical polarimetric monitoring of the type II-plateau SN 2005af    p. 827
A. Pereyra, A. M. Magalhães, C. V. Rodrigues, C. R. Silva, R. Campos, G. Hickel and D. Cieslinski
DOI: http://dx.doi.org/10.1051/0004-6361:20065207
Abstract Full HTML PDF (566 KB) PS (2.70 MB) References SIMBAD record NASA ADS Abstract Service



-  Stellar structure and evolution
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Spectrometric composition of nearby K dwarfs    p. 833
E. Kotoneva, J. R. Shi, G. Zhao and Y. J. Liu
DOI: http://dx.doi.org/10.1051/0004-6361:20042498
Abstract Full HTML PDF (1.01 MB) PS (687 KB) References Online Material SIMBAD record NASA ADS Abstract Service

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Precise radial velocities with BOES - Detection of low-amplitude pulsations in the K-giant α Arietis    p. 839
K. M. Kim, D. E. Mkrtichian, B.-C. Lee, Inwoo Han and A. P. Hatzes
DOI: http://dx.doi.org/10.1051/0004-6361:20053073
Abstract Full HTML PDF (487 KB) PS (380 KB) References SIMBAD record NASA ADS Abstract Service

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Full evolutionary models for PG 1159 stars. Implications for the helium-rich O(He) stars    p. 845
M. M. Miller Bertolami and L. G. Althaus
DOI: http://dx.doi.org/10.1051/0004-6361:20054723
Abstract Full HTML PDF (706 KB) PS (667 KB) References SIMBAD record NASA ADS Abstract Service

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Indirect imaging of an accretion disk rim in the long-period interacting binary W Crucis    p. 855
K. Pavlovski, G. Burki and P. Mimica
DOI: http://dx.doi.org/10.1051/0004-6361:20054733
Abstract Full HTML PDF (612 KB) PS (249 KB) References Tables at CDS SIMBAD record NASA ADS Abstract Service

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Asteroseismic inferences on GW Virginis variable stars in the frame of new PG 1159 evolutionary models    p. 863
A. H. Córsico and L. G. Althaus
DOI: http://dx.doi.org/10.1051/0004-6361:20054199
Abstract Full HTML PDF (1.04 MB) PS (781 KB) References SIMBAD record NASA ADS Abstract Service

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2-dimensional models of rapidly rotating stars - II. Hydrostatic and acoustic models with    p. 883
I. W. Roxburgh
DOI: http://dx.doi.org/10.1051/0004-6361:20065109
Abstract Full HTML PDF (212 KB) PS (75.1 KB) References NASA ADS Abstract Service



-  Stellar atmospheres
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Opacity in the upper atmospheres of active stars - II. AD Leonis    p. 889
D. J. Christian, M. Mathioudakis, D. S. Bloomfield, J. Dupuis, F. P. Keenan, D. L. Pollacco and R. F. Malina
DOI: http://dx.doi.org/10.1051/0004-6361:20054404
Abstract Full HTML PDF (162 KB) PS (78.0 KB) References SIMBAD record NASA ADS Abstract Service

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Analysis of 26 barium stars - I. Abundances    p. 895
D. M. Allen and B. Barbuy
DOI: http://dx.doi.org/10.1051/0004-6361:20064912
Abstract Full HTML PDF (883 KB) PS (444 KB) References Online Material Tables at CDS SIMBAD record NASA ADS Abstract Service

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Analysis of 26 barium stars - II. Contributions of s-, r-, and p-processes in the production of heavy elements    p. 917
D. M. Allen and B. Barbuy
DOI: http://dx.doi.org/10.1051/0004-6361:20064968
Abstract Full HTML PDF (1.08 MB) PS (373 KB) References Online Material Tables at CDS SIMBAD record NASA ADS Abstract Service

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Stellar model atmospheres with magnetic line blanketing - III. The role of magnetic field inclination    p. 933
S. A. Khan and D. V. Shulyak
DOI: http://dx.doi.org/10.1051/0004-6361:20064938
Abstract Full HTML PDF (228 KB) PS (122 KB) References NASA ADS Abstract Service

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Precise radial velocities of giant stars - I. Stable stars    p. 943
S. Hekker, S. Reffert, A. Quirrenbach, D. S. Mitchell, D. A. Fischer, G. W. Marcy and R. P. Butler
DOI: http://dx.doi.org/10.1051/0004-6361:20064946
Abstract Full HTML PDF (304 KB) PS (110 KB) References SIMBAD record NASA ADS Abstract Service

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New DQ white dwarfs in the Sloan Digital Sky Survey DR4: confirmation of two sequences    p. 951
D. Koester and S. Knist
DOI: http://dx.doi.org/10.1051/0004-6361:20065287
Abstract Full HTML PDF (872 KB) PS (760 KB) References Online Material SIMBAD record NASA ADS Abstract Service



-  The Sun
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Gyrokinetic electron acceleration in the force-free corona with anomalous resistivity    p. 957
K. Arzner and L. Vlahos
DOI: http://dx.doi.org/10.1051/0004-6361:20064953
Abstract Full HTML PDF (2.02 MB) PS (1.10 MB) References NASA ADS Abstract Service

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Electron acceleration by the reconnection outflow shock during solar flares    p. 969
G. Mann, H. Aurass and A. Warmuth
DOI: http://dx.doi.org/10.1051/0004-6361:20064990
Abstract Full HTML PDF (388 KB) PS (381 KB) References NASA ADS Abstract Service

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The flow field in the sunspot canopy    p. 975
R. Rezaei, R. Schlichenmaier, C. Beck and L. R. Bellot Rubio
DOI: http://dx.doi.org/10.1051/0004-6361:20065180
Abstract Full HTML PDF (1.13 MB) PS (2.39 MB) References NASA ADS Abstract Service

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Simulated enhancement of solar type II radio bursts during the collision of two shocks associated with coronal mass ejections    p. 983
J. I. Sakai, T. Mori, S. Saito, Y. Tanaka and H. Aurass
DOI: http://dx.doi.org/10.1051/0004-6361:20065130
Abstract Full HTML PDF (533 KB) PS (1.19 MB) References NASA ADS Abstract Service



-  Planets and planetary systems
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Radial distribution of planets - Predictions based on the core-accretion gas-capture planet-formation model    p. 989
K. Kornet and S. Wolf
DOI: http://dx.doi.org/10.1051/0004-6361:20053895
Abstract Full HTML PDF (344 KB) PS (332 KB) References NASA ADS Abstract Service


-  Instruments, observational techniques, and data processing
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Matched filters for source detection in the Poissonian noise regime    p. 997
I. M. Stewart
DOI: http://dx.doi.org/10.1051/0004-6361:20053498
Abstract Full HTML PDF (325 KB) PS (134 KB) References SIMBAD record NASA ADS Abstract Service

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Speckle reconstruction of photometric data observed with adaptive optics    p. 1011
K. G. Puschmann and M. Sailer
DOI: http://dx.doi.org/10.1051/0004-6361:20053918
Abstract Full HTML PDF (1.25 MB) PS (1.26 MB) References NASA ADS Abstract Service

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Curvelet analysis of asteroseismic data - I. Method description and application to simulated sun-like stars    p. 1021
P. Lambert, S. Pires, J. Ballot, R. A. García, J.-L. Starck and S. Turck-Chièze
DOI: http://dx.doi.org/10.1051/0004-6361:20054541
Abstract Full HTML PDF (1.19 MB) PS (1.66 MB) References NASA ADS Abstract Service

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Ground-based CCD astrometry with wide field imagers - I. Observations just a few years apart allow decontamination of field objects from members in two globular clusters    p. 1029
J. Anderson, L. R. Bedin, G. Piotto, R. S. Yadav and A. Bellini
DOI: http://dx.doi.org/10.1051/0004-6361:20065004
Abstract Full HTML PDF (5.31 MB) PS (6.03 MB) References SIMBAD record NASA ADS Abstract Service



-  Online catalogs and data
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An XMM-Newton view of the young open cluster NGC 6231 - I. The catalogue    p. 1047
H. Sana, E. Gosset, G. Rauw, H. Sung and J.-M. Vreux
DOI: http://dx.doi.org/10.1051/0004-6361:20053224
Abstract Full HTML PDF (1.40 MB) PS (7.56 MB) References Online Material Tables at CDS SIMBAD record NASA ADS Abstract Service