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Astronomy and Astrophysics

Vol. 500, No. 3 (June IV 2009)

A disk in Keplerian rotation around a young star. Credit: NASA/STScI (background) (V. Bujarrabal, et al., p. 1080)

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Letters
Astrophysical processes
Cosmology (including clusters of galaxies)
Extragalactic astronomy
Galactic structure, stellar clusters, and populations
Interstellar and circumstellar matter
Stellar structure and evolution
Stellar atmospheres
The Sun
Planets and planetary systems
Atomic, molecular, and nuclear data
Astronomical instrumentation
Catalogs and data

- Letters

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First evidence of a magnetic field on Vega - Towards a new class of magnetic A-type stars p. L41
F. Lignières, P. Petit, T. Böhm, and M. Aurière
Published online: 13 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911996
Abstract | Full HTML | PDF (157.1 KB) | PS (76.84 KB) | References | NASA ADS Abstract Service

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Detection of orbital parameter changes in the TrES-2 exoplanet? p. L45
D. Mislis and J. H. M. M. Schmitt
Published online: 27 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811424
Abstract | Full HTML | PDF (179.1 KB) | PS (173.2 KB) | References | Tables at CDS | NASA ADS Abstract Service

GMRT radio observations of the transiting extrasolar planet HD 189733 b at 244 and 614 MHz p. L51
A. Lecavelier des Etangs, S. K. Sirothia, Gopal-Krishna, and P. Zarka
Published online: 27 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200912347
Abstract | Full HTML | PDF (450.9 KB) | PS (2.209 MB) | References | NASA ADS Abstract Service

- Astrophysical processes

- Cosmology (including clusters of galaxies)

Multi-wavelength study of X-ray luminous clusters at z ~ 0.3 - I. Star-formation activity of cluster galaxies p. 947
F. G. Braglia, D. Pierini, A. Biviano, and H. Böhringer
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811589
Abstract | Full HTML | PDF (1.729 MB) | PS (1.807 MB) | References | Tables at CDS | NASA ADS Abstract Service

Foregrounds for observations of the cosmological 21 cm line - I. First Westerbork measurements of Galactic emission at 150 MHz in a low latitude field p. 965
G. Bernardi et al.
Published online: 22 June 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911627
Abstract | Full HTML | PDF (2.978 MB) | PS (6.604 MB) | References | NASA ADS Abstract Service

Photometric redshifts for the CFHTLS T0004 deep and wide fields p. 981
J. Coupon et al.
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811413
Abstract | Full HTML | PDF (711.8 KB) | PS (544.4 KB) | References | NASA ADS Abstract Service

- Extragalactic astronomy

XMM-Newton observations of Seyfert galaxies from the Palomar spectroscopic survey: the X-ray absorption distribution p. 999
A. Akylas and I. Georgantopoulos
Published online: 25 March 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811371
Abstract | Full HTML | PDF (1.179 MB) | PS (944.5 KB) | References | NASA ADS Abstract Service

SN 1999ga: a low-luminosity linear type II supernova? p. 1013
A. Pastorello et al.
Published online: 8 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911993
Abstract | Full HTML | PDF (1.499 MB) | PS (2.387 MB) | References | NASA ADS Abstract Service

AGB stars as tracers of metallicity and mean age across M 33 p. 1025
M.-R. L. Cioni, M. Irwin, A. M. N. Ferguson, A. McConnachie, B. C. Conn, A. Huxor, R. Ibata, G. Lewis, and N. Tanvir
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200809366e
Abstract | Full HTML | PDF (64.22 KB) | PS (38.60 KB) | NASA ADS Abstract Service

- Galactic structure, stellar clusters, and populations

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The EROS2 search for microlensing events towards the spiral arms: the complete seven season results p. 1027
Y. R. Rahal et al.
Published online: 1 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811515
Abstract | Full HTML | PDF (5.306 MB) | PS (8.739 MB) | References | Online Material | Tables at CDS | NASA ADS Abstract Service

A new population of cool stars and brown dwarfs in the Lupus clouds p. 1045
F. Comerón, L. Spezzi, and B. López Martí
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911771
Abstract | Full HTML | PDF (1.719 MB) | PS (5.374 MB) | References | Online Material | NASA ADS Abstract Service

- Interstellar and circumstellar matter

The flared inner disk of the Herbig Ae star AB Aurigae revealed by VLTI/MIDI in the N-band p. 1065
E. Di Folco, A. Dutrey, O. Chesneau, S. Wolf, A. Schegerer, Ch. Leinert, and B. Lopez
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200809902
Abstract | Full HTML | PDF (288.8 KB) | PS (192.8 KB) | References | NASA ADS Abstract Service

The physical conditions in Gomez's Hamburger (IRAS 18059-3211), a pre-MS rotating disk p. 1077
V. Bujarrabal, K. Young, and A. Castro-Carrizo
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811233
Abstract | Full HTML | PDF (1.190 MB) | PS (7.113 MB) | References | Online Material | NASA ADS Abstract Service

Planetary nebulae in the direction of the Galactic bulge: on nebulae with emission-line central stars p. 1089
S. K. Górny, C. Chiappini, G. Stasińska, and F. Cuisinier
Published online: 8 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200810841
Abstract | Full HTML | PDF (965.9 KB) | PS (788.4 KB) | References | Online Material | NASA ADS Abstract Service

Rotational spectrum of ¹³C₂-methyl formate (HCOO¹³CH₃) and detection of the two ¹³C-methyl formate in Orion p. 1109
M. Carvajal et al.
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811456
Abstract | Full HTML | PDF (258.9 KB) | PS (224.8 KB) | References | Tables at CDS | NASA ADS Abstract Service

Millimeter-wave survey of molecular clouds around the W5-East triggered star-forming region p. 1119
T. Niwa, K. Tachihara, Y. Itoh, Y. Oasa, K. Sunada, K. Sugitani, and T. Mukai
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811065
Abstract | Full HTML | PDF (775.8 KB) | PS (1.316 MB) | References | NASA ADS Abstract Service

CO and H I observations of an enigmatic interstellar cloud p. 1131
Y. Libert, E. Gérard, T. Le Bertre, L. Matthews, C. Thum, and J. M. Winters
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911990
Abstract | Full HTML | PDF (201.8 KB) | PS (117.5 KB) | References | NASA ADS Abstract Service

Evidence for CO depletion in the inner regions of gas-rich protoplanetary disks p. 1137
G. van der Plas, M. E. van den Ancker, B. Acke, A. Carmona, C. Dominik, D. Fedele, and L. B. F. M. Waters
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811148
Abstract | Full HTML | PDF (618.2 KB) | PS (416.3 KB) | References | NASA ADS Abstract Service

- Stellar structure and evolution

The C/O ratio at low metallicity: constraints on early chemical evolution from observations of Galactic halo stars p. 1143
D. Fabbian, P. E. Nissen, M. Asplund, M. Pettini, and C. Akerman
Published online: 30 January 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200810095
Abstract | Full HTML | PDF (304.6 KB) | PS (154.0 KB) | References | NASA ADS Abstract Service

Near-infrared follow-up to the May 2008 activation of SGR 1627-41 p. 1157
A. de Ugarte Postigo, A. J. Castro-Tirado, S. Covino, J. Gorosabel, P. D'Avanzo, and D. E. A. Nürnberger
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811384
Abstract | Full HTML | PDF (418.8 KB) | PS (498.8 KB) | References | NASA ADS Abstract Service

Abundances anomalies and meridional circulation in horizontal branch stars p. 1163
D. Quievy, P. Charbonneau, G. Michaud, and J. Richer
Published online: 8 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811262
Abstract | Full HTML | PDF (294.9 KB) | PS (143.3 KB) | References | NASA ADS Abstract Service

Asymptotic analysis of high-frequency acoustic modes in rapidly rotating stars p. 1173
F. Lignières and B. Georgeot
Published online: 8 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811165
Abstract | Full HTML | PDF (3.718 MB) | PS (2.539 MB) | References | NASA ADS Abstract Service

High-resolution smoothed particle hydrodynamics simulations of the merger of binary white dwarfs p. 1193
P. Lorén-Aguilar, J. Isern, and E. García-Berro
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811060
Abstract | Full HTML | PDF (775.6 KB) | PS (3.910 MB) | References | NASA ADS Abstract Service

PHL 5038: a spatially resolved white dwarf + brown dwarf binary p. 1207
P. R. Steele, M. R. Burleigh, J. Farihi, B. T. Gänsicke, R. F. Jameson, P. D. Dobbie, and M. A. Barstow
Published online: 8 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911694
Abstract | Full HTML | PDF (148.8 KB) | PS (74.97 KB) | References | NASA ADS Abstract Service

Deep optical observations of the central X-ray source in the Puppis A supernova remnant p. 1211
R. P. Mignani, A. De Luca, S. Mereghetti, and P. A. Caraveo
Published online: 5 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811338
Abstract | Full HTML | PDF (124.2 KB) | PS (90.06 KB) | References | NASA ADS Abstract Service

HD 146875: a newly identified ZAMS active double-lined spectroscopic binary p. 1215
H. J. Wang, J. Y. Wei, J. R. Shi, and J. K. Zhao
Published online: 13 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200810873
Abstract | Full HTML | PDF (1.387 MB) | PS (2.918 MB) | References | NASA ADS Abstract Service

- Stellar atmospheres

Neutral oxygen spectral line formation revisited with new collisional data: large departures from LTE at low metallicity p. 1221
D. Fabbian, M. Asplund, P. S. Barklem, M. Carlsson, and D. Kiselman
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200809640
Abstract | Full HTML | PDF (381.7 KB) | PS (207.6 KB) | References | NASA ADS Abstract Service

- The Sun

The solar chromosphere at high resolution with IBIS - III. Comparison of Ca II K and Ca II 854.2 nm imaging p. 1239
K. P. Reardon, H. Uitenbroek, and G. Cauzzi
Published online: 11 March 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811223
Abstract | Full HTML | PDF (4.591 MB) | PS (26.13 MB) | References | NASA ADS Abstract Service

- Planets and planetary systems

Oligarchic planetesimal accretion and giant planet formation II p. 1249
A. Fortier, O. G. Benvenuto, and A. Brunini
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811367
Abstract | Full HTML | PDF (123.4 KB) | PS (60.98 KB) | References | NASA ADS Abstract Service

- Atomic, molecular, and nuclear data

Electron-impact excitation of Ar²⁺ p. 1253
J. M. Munoz Burgos, S. D. Loch, C. P. Ballance, and R. F. Boivin
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911743
Abstract | Full HTML | PDF (530.5 KB) | PS (445.2 KB) | References | Tables at CDS | NASA ADS Abstract Service

R-matrix electron-impact excitation data for the Na-like iso-electronic sequence p. 1263
G. Y. Liang, A. D. Whiteford, and N. R. Badnell
Published online: 8 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911866
Abstract | Full HTML | PDF (510.9 KB) | PS (617.9 KB) | References | Tables at CDS | NASA ADS Abstract Service

- Astronomical instrumentation

First single star scidar measurements at Dome C, Antarctica p. 1271
J. Vernin, M. Chadid, E. Aristidi, A. Agabi, H. Trinquet, and M. Van der Swaelmen
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811119
Abstract | Full HTML | PDF (582.0 KB) | PS (1.590 MB) | References | NASA ADS Abstract Service

APIC - Absolute Position Interfero-Coronagraph for direct exoplanet detection p. 1277
F. Allouche, A. Glindemann, E. Aristidi, and F. Vakili
Published online: 16 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811232
Abstract | Full HTML | PDF (431.4 KB) | PS (497.4 KB) | References | NASA ADS Abstract Service

Design, analysis, and testing of a microdot apodizer for the apodized pupil Lyot coronagraph - II. Impact of the dot size p. 1281
P. Martinez, C. Dorrer, M. Kasper, A. Boccaletti, and K. Dohlen
Published online: 13 May 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911824
Abstract | Full HTML | PDF (2.605 MB) | PS (28.94 MB) | References | NASA ADS Abstract Service

- Catalogs and data

OASIS integral-field spectroscopy of the central kpc in 11 Seyfert 2 galaxies p. 1287
I. Stoklasová, P. Ferruit, E. Emsellem, B. Jungwiert, E. Pécontal, and S. F. Sánchez
Published online: 29 April 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200811225
Abstract | Full HTML | PDF (7.557 MB) | PS (30.04 MB) | References | NASA ADS Abstract Service

Observations of 44 extragalactic radio sources with the VLBA at 92 cm - A list of potential calibrators and targets for LOFAR and RadioAstron p. 1327
H. Rampadarath, M. A. Garrett, and A. Polatidis
Published online: 25 March 2009
DOI: http://dx.doi.org/10.1051/0004-6361/200911802
Abstract | Full HTML | PDF (364.2 KB) | PS (348.1 KB) | References | NASA ADS Abstract Service