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Astronomy and Astrophysics

Vol. 480, No. 3 (March IV 2008)

Hipparcos stars towards the ρ-Oph dark cloud (M. Lombardi, et al., p. 786)
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Editorial
The 2007 A&A author survey: answers and follow-up     p. E3
C. Bertout and M. Walmsley
DOI: http://dx.doi.org/10.1051/0004-6361:200809542
Abstract | Full HTML | PDF (1.031 MB) | PS (8.154 MB) | Online Material | NASA ADS Abstract Service


-  Letters
The CORALIE survey for southern extra-solar planets - XV. Discovery of two eccentric planets orbiting HD 4113 and HD 156846     p. L33
O. Tamuz et al.
Published online: 14 February 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078737
Abstract | Full HTML | PDF (251.5 KB) | PS (106.6 KB) | References | SIMBAD record | NASA ADS Abstract Service

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LMC origin of the hyper-velocity star HE 0437-5439 - Beyond the supermassive black hole paradigm     p. L37
N. Przybilla, M. F. Nieva, U. Heber, M. Firnstein, K. Butler, R. Napiwotzki, and H. Edelmann
Published online: 5 February 2008
DOI: http://dx.doi.org/10.1051/0004-6361:200809391
Abstract | Full HTML | PDF (607.4 KB) | PS (194.9 KB) | References | SIMBAD record | NASA ADS Abstract Service

Black hole growth and stellar assembly at high-z     p. L41
M. Polletta
Published online: 7 February 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20079200
Abstract | Full HTML | PDF (243.8 KB) | PS (98.39 KB) | References | SIMBAD record | NASA ADS Abstract Service

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q1 Eridani: a solar-type star with a planet and a dust belt     p. L47
R. Liseau, C. Risacher, A. Brandeker, C. Eiroa, M. Fridlund, R. Nilsson, G. Olofsson, G. L. Pilbratt, and P. Thébault
Published online: 14 February 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20079276
Abstract | Full HTML | PDF (223.6 KB) | PS (124.8 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Astrophysical processes
Observations of pulsars at 9 millimetres     p. 623
O. Löhmer, A. Jessner, M. Kramer, R. Wielebinski, and O. Maron
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20066806
Abstract | Full HTML | PDF (165.1 KB) | PS (75.00 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Cosmology (including clusters of galaxies)
Two-photon transitions in hydrogen and cosmological recombination     p. 629
J. Chluba and R. A. Sunyaev
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20077921
Abstract | Full HTML | PDF (867.4 KB) | PS (577.9 KB) | References | Online Material | NASA ADS Abstract Service

Press Release
Microlensing variability in the gravitationally lensed quasar QSO 2237+0305 the Einstein Cross - I. Spectrophotometric monitoring with the VLT     p. 647
A. Eigenbrod, F. Courbin, D. Sluse, G. Meylan, and E. Agol
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078703
Abstract | Full HTML | PDF (2.356 MB) | PS (4.267 MB) | References | SIMBAD record | NASA ADS Abstract Service


-  Extragalactic astronomy
The galaxy luminosity function and its evolution with Chandra     p. 663
P. Tzanavaris and I. Georgantopoulos
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078193
Abstract | Full HTML | PDF (273.1 KB) | PS (86.96 KB) | References | SIMBAD record | NASA ADS Abstract Service

Heavy absorption and soft X-ray emission lines in the XMM-Newton spectrum of the type 2 radio-loud quasar 3C 234     p. 671
E. Piconcelli, S. Bianchi, G. Miniutti, F. Fiore, M. Guainazzi, E. Jimenez-Bailon, and G. Matt
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078746
Abstract | Full HTML | PDF (243.5 KB) | PS (91.23 KB) | References | SIMBAD record | NASA ADS Abstract Service

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Anomalous X-ray emission in GRB 060904B: a nickel line?     p. 677
R. Margutti, A. Moretti, F. Pasotti, S. Campana, G. Chincarini, S. Covino, C. Guidorzi, P. Mazzali, P. Romano, and G. Tagliaferri
Published online: 9 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078799
Abstract | Full HTML | PDF (370.9 KB) | PS (858.5 KB) | References | SIMBAD record | NASA ADS Abstract Service

Revised statistics of radio halos and the reacceleration model     p. 687
R. Cassano, G. Brunetti, T. Venturi, G. Setti, D. Dallacasa, S. Giacintucci, and S. Bardelli
Published online: 9 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078986
Abstract | Full HTML | PDF (611.1 KB) | PS (1.384 MB) | References | SIMBAD record | NASA ADS Abstract Service

Is the anti-correlation between the X-ray variability amplitude and black hole mass of AGNs intrinsic?     p. 699
Y. Liu and S. N. Zhang
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078282
Abstract | Full HTML | PDF (101.9 KB) | PS (44.53 KB) | References | SIMBAD record | NASA ADS Abstract Service

A blind test of photometric redshifts on ground-based data     p. 703
H. Hildebrandt, C. Wolf, and N. Benítez
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20077107
Abstract | Full HTML | PDF (2.220 MB) | PS (891.2 KB) | References | SIMBAD record | NASA ADS Abstract Service

High-redshift blazar identification for Swift J1656.3-3302     p. 715
N. Masetti et al.
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078901
Abstract | Full HTML | PDF (267.1 KB) | PS (263.6 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Galactic structure, stellar clusters, and populations
Microlensing constraints on the Galactic bulge initial mass function     p. 723
S. Calchi Novati, F. De Luca, Ph. Jetzer, L. Mancini, and G. Scarpetta
Published online: 18 December 2007
DOI: http://dx.doi.org/10.1051/0004-6361:20078439
Abstract | Full HTML | PDF (632.4 KB) | PS (224.3 KB) | References | SIMBAD record | NASA ADS Abstract Service

On the kinematic evolution of young local associations and the Scorpius-Centaurus complex     p. 735
D. Fernández, F. Figueras, and J. Torra
Published online: 9 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20077720
Abstract | Full HTML | PDF (1.413 MB) | PS (819.4 KB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service

Galactic kinematics with RAVE data - I. The distribution of stars towards the Galactic poles     p. 753
L. Veltz et al.
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20066948
Abstract | Full HTML | PDF (682.1 KB) | PS (792.0 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Interstellar and circumstellar matter
First VLBI observations of methanol maser polarisation, in G339.88-1.26     p. 767
R. Dodson
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078670
Abstract | Full HTML | PDF (394.4 KB) | PS (153.9 KB) | References | SIMBAD record | NASA ADS Abstract Service

Kinematics and H morphology of the multipolar post-AGB star IRAS 16594-4656     p. 775
G. C. Van de Steene, T. Ueta, P. A. M. van Hoof, M. Reyniers, and A. G. Ginsburg
Published online: 9 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078880
Abstract | Full HTML | PDF (620.1 KB) | PS (987.9 KB) | References | SIMBAD record | NASA ADS Abstract Service

Hipparcos distance estimates of the Ophiuchus and the Lupus cloud complexes     p. 785
M. Lombardi, C. J. Lada, and J. Alves
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20079110
Abstract | Full HTML | PDF (933.5 KB) | PS (823.8 KB) | References | SIMBAD record | NASA ADS Abstract Service

Massive star-formation in G24.78+0.08 explored through VLBI maser observations     p. 793
L. Moscadelli, C. Goddi, R. Cesaroni, M. T. Beltrán, and R. S. Furuya
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20077823e
Abstract | Full HTML | PDF (366.4 KB) | PS (247.5 KB) | Online Material | NASA ADS Abstract Service


-  Stellar structure and evolution
Orbital eccentricities of binary systems with a former AGB star     p. 797
A. A. Bonačić Marinović, E. Glebbeek, and O. R. Pols
Published online: 2 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078297
Abstract | Full HTML | PDF (498.8 KB) | PS (1.512 MB) | References | SIMBAD record | NASA ADS Abstract Service

XMMU J134736.6+173403: an eclipsing LMXB in quiescence or a peculiar AGN?     p. 807
S. Carpano, B. Altieri, A. R. King, A. Nucita, and P. Leisy
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20079027
Abstract | Full HTML | PDF (282.0 KB) | PS (235.9 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Stellar atmospheres
Isotopic anomaly and stratification of Ca in magnetic Ap stars     p. 811
T. Ryabchikova, O. Kochukhov, and S. Bagnulo
Published online: 4 February 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20077834
Abstract | Full HTML | PDF (2.106 MB) | PS (1.861 MB) | References | SIMBAD record | NASA ADS Abstract Service


-  The Sun
A 3D sunspot model derived from an inversion of spectropolarimetric observations and its implications for the penumbral heating     p. 825
C. Beck
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078409
Abstract | Full HTML | PDF (2.088 MB) | PS (3.016 MB) | References | Online Material | NASA ADS Abstract Service

Chromospheric heating by the Farley-Buneman instability     p. 839
J. M. Fontenla, W. K. Peterson, and J. Harder
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078517
Abstract | Full HTML | PDF (476.9 KB) | PS (1.210 MB) | References | NASA ADS Abstract Service

Gamma-ray emission from the solar halo and disk: a study with EGRET data     p. 847
E. Orlando and A. W. Strong
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078817
Abstract | Full HTML | PDF (1.183 MB) | PS (1.806 MB) | References | SIMBAD record | NASA ADS Abstract Service


-  Planets and planetary systems
Coagulation, fragmentation and radial motion of solid particles in protoplanetary disks     p. 859
F. Brauer, C. P. Dullemond, and Th. Henning
Published online: 20 November 2007
DOI: http://dx.doi.org/10.1051/0004-6361:20077759
Abstract | Full HTML | PDF (1.411 MB) | PS (1.076 MB) | References | Online Material | NASA ADS Abstract Service

Can giant planets form by gravitational fragmentation of discs? - Radiative hydrodynamic simulations of the inner disc region (40 AU)     p. 879
D. Stamatellos and A. P. Whitworth
Published online: 17 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078628
Abstract | Full HTML | PDF (1.619 MB) | PS (1.936 MB) | References | SIMBAD record | NASA ADS Abstract Service

Chemical abundances in six nearby star-forming regions - Implications for galactic evolution and planet searches around very young stars     p. 889
N. C. Santos, C. Melo, D. J. James, J. F. Gameiro, J. Bouvier, and J. I. Gomes
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20079083
Abstract | Full HTML | PDF (302.0 KB) | PS (121.9 KB) | References | SIMBAD record | NASA ADS Abstract Service


-  Astronomical instrumentation
High contrast experiment of an AO-free coronagraph with a checkerboard pupil mask     p. 899
K. Enya, L. Abe, S. Tanaka, T. Nakagawa, K. Haze, T. Sato, and T. Wakayama
Published online: 25 January 2008
DOI: http://dx.doi.org/10.1051/0004-6361:20078627
Abstract | Full HTML | PDF (1.161 MB) | PS (3.238 MB) | References | NASA ADS Abstract Service