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Astronomy & Astrophysics

Vol. 490, No. 2 (November I 2008)

NGC 6946, optical and HI image on the same scale (R. Boomsma, et al., p. 557)
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Editorial
English language editing at A&A    p. E19
J. Adams, C. Halliday, A. Mednick, M. Usdin, C. Bertout and M. Walmsley
DOI: http://dx.doi.org/10.1051/0004-6361:200810787
Abstract Full HTML PDF (81.00 KB) PS (33.19 KB) NASA ADS Abstract Service


-  Letters
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An occultation event in the nucleus of the planetary nebula M 2-29    p. L7
M. Hajduk, A. A. Zijlstra and K. Gesicki
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810492
Abstract Full HTML PDF (295.3 KB) PS (114.0 KB) References SIMBAD record NASA ADS Abstract Service

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Prograde and retrograde atmospheric rotation of cloud-covered terrestrial planets - Significance of astronomical parameters in the middle atmosphere    p. L11
M. Yamamoto and M. Takahashi
Published online: 23 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810530
Abstract Full HTML PDF (853.4 KB) PS (2.022 MB) References Online Material NASA ADS Abstract Service

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Cavities in inner disks: the GM Aurigae case    p. L15
A. Dutrey, S. Guilloteau, V. Piétu, E. Chapillon, F. Gueth, T. Henning, R. Launhardt, Y. Pavlyuchenkov, K. Schreyer and D. Semenov
Published online: 1 October 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810732
Abstract Full HTML PDF (165.9 KB) PS (142.7 KB) References SIMBAD record NASA ADS Abstract Service



-  Astrophysical processes
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A new equation for the mid-plane potential of power law discs - II. Exact solutions and approximate formulae    p. 477
J.-M. Huré, F. Hersant, C. Carreau and J.-P. Busset
Published online: 18 August 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809682
Abstract Full HTML PDF (421.0 KB) PS (1.208 MB) References NASA ADS Abstract Service

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Efficiency of the centrifugally induced curvature drift instability in AGN winds    p. 487
Z. Osmanov
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809710
Abstract Full HTML PDF (172.2 KB) PS (114.4 KB) References SIMBAD record NASA ADS Abstract Service

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On the linear theory of Kelvin-Helmholtz instabilities of relativistic magnetohydrodynamic planar flows    p. 493
Z. Osmanov, A. Mignone, S. Massaglia, G. Bodo and A. Ferrari
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809605
Abstract Full HTML PDF (295.5 KB) PS (249.2 KB) References SIMBAD record NASA ADS Abstract Service

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High accretion rates in magnetised Keplerian discs mediated by a Parker instability driven dynamo    p. 501
A. Johansen and Y. Levin
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810385
Abstract Full HTML PDF (655.1 KB) PS (587.1 KB) References NASA ADS Abstract Service

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Inverse Compton gamma-ray models for remnants of Galactic type Ia supernovae?    p. 515
H. J. Völk, L. T. Ksenofontov and E. G. Berezhko
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810501
Abstract Full HTML PDF (144.1 KB) PS (73.02 KB) References SIMBAD record NASA ADS Abstract Service



-  Cosmology (including clusters of galaxies)
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Effects of primordial chemistry on the cosmic microwave background    p. 521
D. R. G. Schleicher, D. Galli, F. Palla, M. Camenzind, R. S. Klessen, M. Bartelmann and S. C. O. Glover
Published online: 9 July 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809861
Abstract Full HTML PDF (467.7 KB) PS (212.3 KB) References NASA ADS Abstract Service

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The complex galaxy cluster Abell 514: New results obtained with the XMM-Newton satellite    p. 537
J. Weratschnig, M. Gitti, S. Schindler and K. Dolag
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20079289
Abstract Full HTML PDF (898.1 KB) PS (2.677 MB) References SIMBAD record NASA ADS Abstract Service

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The infrared luminosity of galaxy clusters    p. 547
M. Giard, L. Montier, E. Pointecouteau and E. Simmat
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810442
Abstract Full HTML PDF (206.0 KB) PS (85.28 KB) References SIMBAD record NASA ADS Abstract Service



-  Extragalactic astronomy
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HI holes and high-velocity clouds in the spiral galaxy NGC 6946    p. 555
R. Boomsma, T. A. Oosterloo, F. Fraternali, J. M. van der Hulst and R. Sancisi
Published online: 23 July 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810120
Abstract Full HTML PDF (2.975 MB) PS (10.99 MB) References SIMBAD record NASA ADS Abstract Service

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The relationship between gas content and star formation rate in spiral galaxies. Comparing the local field with the Virgo cluster    p. 571
M. Fumagalli and G. Gavazzi
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810604
Abstract Full HTML PDF (624.4 KB) PS (1.180 MB) References SIMBAD record NASA ADS Abstract Service

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The colour of the narrow line Sy1-blazar 0324+3410    p. 583
S. Antón, I. W. A. Browne and M. J. Marchã
Published online: 25 August 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078926
Abstract Full HTML PDF (1.374 MB) PS (2.336 MB) References SIMBAD record NASA ADS Abstract Service

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VIMOS-VLT integral field kinematics of the giant low surface brightness galaxy ESO 323-G064    p. 589
L. Coccato, R. A. Swaters, V. C. Rubin, S. D'Odorico and S. S. McGaugh
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810410
Abstract Full HTML PDF (412.1 KB) PS (257.2 KB) References SIMBAD record NASA ADS Abstract Service



-  Galactic structure, stellar clusters, and populations
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Optical spectroscopy of X-ray sources in the Taurus molecular cloud: discovery of ten new pre-main sequence stars    p. 601
L. Scelsi, G. Sacco, L. Affer, C. Argiroffi, I. Pillitteri, A. Maggio and G. Micela
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810178
Abstract Full HTML PDF (488.3 KB) PS (246.2 KB) References SIMBAD record NASA ADS Abstract Service

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Galactic abundance gradients from Cepheids - On the iron abundance gradient around 10–12 kpc    p. 613
B. Lemasle, P. François, A. Piersimoni, S. Pedicelli, G. Bono, C. D. Laney, F. Primas and M. Romaniello
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810192
Abstract Full HTML PDF (265.3 KB) PS (133.2 KB) References SIMBAD record NASA ADS Abstract Service

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Spectroscopic and photometric evidence of two stellar populations in the Galactic globular cluster NGC 6121 (M 4)    p. 625
A. F. Marino, S. Villanova, G. Piotto, A. P. Milone, Y. Momany, L. R. Bedin and A. M. Medling
Published online: 8 August 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810389
Abstract Full HTML PDF (1.254 MB) PS (403.1 KB) References Tables at CDS SIMBAD record NASA ADS Abstract Service

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Combined Chandra, XMM-Newton, and Hubble Space Telescope observations of the Galactic globular cluster NGC 2808    p. 641
M. Servillat, A. Dieball, N. A. Webb, C. Knigge, R. Cornelisse, D. Barret, K. S. Long, M. M. Shara and D. R. Zurek
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810188
Abstract Full HTML PDF (1.752 MB) PS (2.777 MB) References Online Material SIMBAD record NASA ADS Abstract Service



-  Interstellar and circumstellar matter
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Characterizing star formation activity in infrared dark cloud MSXDC G048.65-00.29    p. 655
M. H. D. van der Wiel and R. F. Shipman
Published online: 23 July 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809696
Abstract Full HTML PDF (2.103 MB) PS (5.589 MB) References SIMBAD record NASA ADS Abstract Service

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The 6.2 band position in laboratory and astrophysical spectra: a tracer of the aliphatic to aromatic evolution of interstellar carbonaceous dust    p. 665
T. Pino, E. Dartois, A.-T. Cao, Y. Carpentier, Th. Chamaillé, R. Vasquez, A. P. Jones, L. d'Hendecourt and Ph. Bréchignac
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809927
Abstract Full HTML PDF (597.7 KB) PS (6.384 MB) References SIMBAD record NASA ADS Abstract Service

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HK-band imaging polarimetry and radiative transfer modeling of the massive young stellar object CRL 2136    p. 673
K. Murakawa, T. Preibisch, S. Kraus and G. Weigelt
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809901
Abstract Full HTML PDF (1.443 MB) PS (2.431 MB) References SIMBAD record NASA ADS Abstract Service

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Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A    p. 685
F. Aharonian, A. G. Akhperjanian, U. Barres de Almeida, A. R. Bazer-Bachi, B. Behera, M. Beilicke, W. Benbow, K. Bernlöhr, C. Boisson, V. Borrel, et al. (141 more)
Published online: 25 August 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809722
Abstract Full HTML PDF (1.498 MB) PS (12.49 MB) References SIMBAD record NASA ADS Abstract Service

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SiO line emission from interstellar jets and outflows: silicon-containing mantles and non-stationary shock waves    p. 695
A. Gusdorf, G. Pineau des Forêts, S. Cabrit and D. R. Flower
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810443
Abstract Full HTML PDF (3.469 MB) PS (2.089 MB) References Online Material SIMBAD record NASA ADS Abstract Service

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OVI in the local interstellar medium: FUSE observations towards B-stars within 200 pc    p. 707
B. Y. Welsh and R. Lallement
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810221
Abstract Full HTML PDF (847.3 KB) PS (1012 KB) References SIMBAD record NASA ADS Abstract Service

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Abundances of planetary nebulae NGC 3242 and NGC 6369    p. 715
S. R. Pottasch and J. Bernard-Salas
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810721
Abstract Full HTML PDF (187.3 KB) PS (73.27 KB) References SIMBAD record NASA ADS Abstract Service

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SPITZER survey of dust grain processing in stable discs around binary post-AGB stars    p. 725
C. Gielen, H. Van Winckel, M. Min, L. B. F. M. Waters and T. Lloyd Evans
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810053
Abstract Full HTML PDF (1.323 MB) PS (646.5 KB) References Online Material SIMBAD record NASA ADS Abstract Service



-  Stellar structure and evolution
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New triple systems in the RasTyc sample of stellar X-ray sources    p. 737
A. Klutsch, A. Frasca, P. Guillout, R. Freire Ferrero, E. Marilli, G. Mignemi and K. Biazzo
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810139
Abstract Full HTML PDF (702.9 KB) PS (411.8 KB) References Online Material Tables at CDS SIMBAD record NASA ADS Abstract Service

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Direct numerical simulations of the κ-mechanism - II. Nonlinear saturation and the Hertzsprung progression    p. 743
T. Gastine and B. Dintrans
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809891
Abstract Full HTML PDF (664.8 KB) PS (1.128 MB) References NASA ADS Abstract Service

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Multi-telescope timing of PSR J1518+4904    p. 753
G. H. Janssen, B. W. Stappers, M. Kramer, D. J. Nice, A. Jessner, I. Cognard and M. B. Purver
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810076
Abstract Full HTML PDF (525.4 KB) PS (284.7 KB) References SIMBAD record NASA ADS Abstract Service

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Binarity at the L/T brown dwarf transition - Adaptive optics search for companions    p. 763
B. Goldman, H. Bouy, M. R. Zapatero Osorio, M. B. Stumpf, W. Brandner and T. Henning
Published online: 25 August 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810605
Abstract Full HTML PDF (704.4 KB) PS (1.267 MB) References SIMBAD record NASA ADS Abstract Service

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Evolution and nucleosynthesis of extremely metal-poor and metal-free low- and intermediate-mass stars - I. Stellar yield tables and the CEMPs    p. 769
S. W. Campbell and J. C. Lattanzio
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809597
Abstract Full HTML PDF (1.415 MB) PS (496.1 KB) References Tables at CDS SIMBAD record NASA ADS Abstract Service

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Atomic diffusion and mixing in old stars - II. Observations of stars in the globular cluster NGC 6397 with VLT/FLAMES-GIRAFFE    p. 777
K. Lind, A. J. Korn, P. S. Barklem and F. Grundahl
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810051
Abstract Full HTML PDF (704.8 KB) PS (2.570 MB) References Online Material SIMBAD record NASA ADS Abstract Service

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The nature of the methanol maser ring G23.657-00.127 - I. The distance through trigonometric parallax measurements    p. 787
A. Bartkiewicz, A. Brunthaler, M. Szymczak, H. J. van Langevelde and M. J. Reid
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810470
Abstract Full HTML PDF (345.0 KB) PS (222.4 KB) References SIMBAD record NASA ADS Abstract Service



-  Stellar atmospheres
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Magnetic field measurements of O stars with FORS 1 at the VLT    p. 793
S. Hubrig, M. Schöller, R. S. Schnerr, J. F. González, R. Ignace and H. F. Henrichs
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810171
Abstract Full HTML PDF (358.7 KB) PS (245.0 KB) References SIMBAD record NASA ADS Abstract Service

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High-resolution X-ray spectroscopy of θ Carinae    p. 801
Y. Nazé and G. Rauw
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810364
Abstract Full HTML PDF (240.5 KB) PS (171.5 KB) References SIMBAD record NASA ADS Abstract Service

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Determining parameters of cool giant stars by modeling spectrophotometric and interferometric observations using the SAtlas program    p. 807
H. R. Neilson and J. B. Lester
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810627
Abstract Full HTML PDF (294.2 KB) PS (93.86 KB) References SIMBAD record NASA ADS Abstract Service



-  The Sun
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Dynamics of coronal mass ejections - The mass-scaling of the aerodynamic drag    p. 811
B. Vršnak, D. Vrbanec and J. Čalogović
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810215
Abstract Full HTML PDF (269.6 KB) PS (257.1 KB) References NASA ADS Abstract Service

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Another forbidden solar oxygen abundance: the [O I] 5577 Å line    p. 817
J. Meléndez and M. Asplund
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810347
Abstract Full HTML PDF (288.5 KB) PS (81.93 KB) References NASA ADS Abstract Service

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Highly ionized Fe X-ray lines at energies 7.7–8.6 keV    p. 823
K. J. H. Phillips
Published online: 17 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810791
Abstract Full HTML PDF (305.4 KB) PS (149.7 KB) References NASA ADS Abstract Service



-  Planets and planetary systems
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Rotational properties of Centaurs and Trans-Neptunian Objects - Lightcurves and densities    p. 829
E. Dotto, D. Perna, M. A. Barucci, A. Rossi, C. de Bergh, A. Doressoundiram and S. Fornasier
Published online: 16 June 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809615
Abstract Full HTML PDF (135.9 KB) PS (87.00 KB) References NASA ADS Abstract Service

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Collisional and dynamical evolution of Plutinos    p. 835
G. C. de Elía, A. Brunini and R. P. Di Sisto
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809865
Abstract Full HTML PDF (593.2 KB) PS (1.147 MB) References NASA ADS Abstract Service

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Radio emission from exoplanets: the role of the stellar coronal density and magnetic field strength    p. 843
M. Jardine and A. C. Cameron
Published online: 8 August 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078658
Abstract Full HTML PDF (734.3 KB) PS (498.7 KB) References SIMBAD record NASA ADS Abstract Service

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Behavior of the reflection function of a plane-parallel medium for directions of incidence and reflection tending to horizontal directions    p. 853
J. W. Hovenier and D. M. Stam
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810790
Abstract Full HTML PDF (191.1 KB) PS (332.1 KB) References NASA ADS Abstract Service



-  Astronomical instrumentation
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SYMPA, a dedicated instrument for Jovian seismology - II. Real performance and first results    p. 859
P. Gaulme, F. X. Schmider, J. Gay, C. Jacob, M. Alvarez, M. Reyes-Ruiz, J. A. Belmonte, E. Fossat, F. Jeanneaux and J.-C. Valtier
Published online: 11 September 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809512
Abstract Full HTML PDF (1.034 MB) PS (3.515 MB) References NASA ADS Abstract Service


-  Numerical methods and codes
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A 3D radiative transfer framework - III. Periodic boundary conditions    p. 873
P. H. Hauschildt and E. Baron
Published online: 28 July 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200810239
Abstract Full HTML PDF (728.2 KB) PS (9.258 MB) References NASA ADS Abstract Service