Astronomy & Astrophysics

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A&A Vol. 406 No. 3

	Astronomy and Astrophysics
	Vol. 406 No. 3 (August II 2003)
Cover illustration: Thermal emission from a QSO at z = 6.4 (white contours, image center) Bertoldi, F., et al., p. L56

Letters

VLT/NACO adaptive optics imaging of the TY CrA system - A fourth stellar component candidate detected p. L51
G. Chauvin, A.-M. Lagrange, H. Beust, T. Fusco, D. Mouillet, F. Lacombe, P. Pujet, G. Rousset, E. Gendron, J.-M. Conan, D. Bauduin, D. Rouan, W. Brandner, R. Lenzen, N. Hubin and M. Hartung
Abstract | References | Full HTML | PDF file (169 KB) | PS file (314 KB)

Dust emission from the most distant quasars p. L55
F. Bertoldi, C. L. Carilli, P. Cox, X. Fan, M. A. Strauss, A. Beelen, A. Omont and R. Zylka
Abstract | References | Full HTML | PDF file (206 KB) | PS file (577 KB)

L183 (L134N) Revisited - I. The very cold core and the ridge p. L59
L. Pagani, G. Lagache, A. Bacmann, F. Motte, L. Cambrésy, M. Fich, D. Teyssier, M.-A. Miville-Deschênes, J.-R. Pardo, A. J. Apponi and B. Stepnik
Abstract | References | Full HTML | PDF file (340 KB) | PS file (410 KB)

On the Ly $\alpha$ emission from gamma-ray burst host galaxies: Evidence for low metallicities p. L63
J. P. U. Fynbo, P. Jakobsson, P. Møller, J. Hjorth, B. Thomsen, M. I. Andersen, A. S. Fruchter, J. Gorosabel, S. T. Holland, C. Ledoux, H. Pedersen, J. Rhoads, M. Weidinger and R. A. M. J. Wijers
Abstract | References | Full HTML | PDF file (307 KB) | PS file (316 KB)

Astrophysical processes

Shock emission in the bipolar post-AGB star IRAS 16594-4656 p. 773
G. C. Van de Steene and P. A. M. van Hoof
Abstract | References | Full HTML | PDF file (154 KB) | PS file (123 KB)

Experimental study of amorphous silicate formation p. 783
S. Wada, Y. Murata, A. T. Tokunaga and J. Watanabe
Abstract | References | Full HTML | PDF file (285 KB) | PS file (796 KB)

Cosmology (including clusters of galaxies)

The origin of X-ray emission of two distant ( $\mathsf{\textit{z}\,>1}$ ) cluster candidates with XMM-Newton p. 789
D. M. Neumann, M. Arnaud, C. Benoist, L. da Costa, H. E. Jørgensen, L. F. Olsen, S. Bardelli, E. Zucca, S. Arnouts, A. Biviano
and M. Ramella
Abstract | References | Full HTML | PDF file (940 KB) | PS file (1.08 MB)

Non-Gaussianity: Comparing wavelet and Fourier based methods p. 797
N. Aghanim, M. Kunz, P. G. Castro and O. Forni
Abstract | References | Full HTML | PDF file (960 KB) | PS file (3.16 MB)

Extragalactic astronomy

Results of the ESO-SEST Key Programme on CO in the Magellanic Clouds - X. CO emission from star formation regions in LMC and SMC p. 817
F. P. Israel, L. E. B. Johansson, M. Rubio, G. Garay, Th. de Graauw, R. S. Booth, F. Boulanger, M. L. Kutner, J. Lequeux and L.-A. Nyman
Abstract | References | Full HTML | PDF file (1.22 MB) | PS file (1.17 MB)

The WSRT wide-field H I survey - I. The background galaxy sample p. 829
R. Braun, D. Thilker and R. A. M. Walterbos
Abstract | References | Full HTML | PDF file (1.55 MB) | PS file (3.31 MB) | Online Material

About the morphology of dwarf spheroidal galaxies and their dark matter content p. 847
C. J. Walcher, J. W. Fried, A. Burkert and R. S. Klessen
Abstract | References | Full HTML | PDF file (409 KB) | PS file (216 KB)

Numerical simulations of radiation from blazar jets p. 855
R. Moderski, M. Sikora and M. Blazejowski
Abstract | References | Full HTML | PDF file (297 KB) | PS file (106 KB)

Mid-IR emission of galaxies in the Virgo cluster III. The data p. 867
A. Boselli, M. Sauvage, J. Lequeux, A. Donati and G. Gavazzi
Abstract | References | Full HTML | PDF file (1.62 MB) | PS file (5.88 MB) | Online Material

Extremely hard GRB spectra prune down the forest of emission models p. 879
G. Ghirlanda, A. Celotti and G. Ghisellini
Abstract | References | Full HTML | PDF file (436 KB) | PS file (167 KB)

Galactic structure, stellar clusters and populations

NGC 6738: Not a real open cluster p. 893
C. Boeche, R. Barbon, A. Henden, U. Munari and P. Agnolin
Abstract | References | Full HTML | PDF file (1.29 MB) | PS file (801 KB)

Interstellar and circumstellar matter

Observational study of reactive ions and radicals in PDRs p. 899
A. Fuente, A. Rodriguez-Franco, S. Garcia-Burillo, J. Martin-Pintado and J. H. Black
Abstract | References | Full HTML | PDF file (495 KB) | PS file (280 KB)

A multiwavelength study of the S 106 region - II. Characteristics of the photon dominated region p. 915
N. Schneider, R. Simon, C. Kramer, K. Kraemer, J. Stutzki and B. Mookerjea
Abstract | References | Full HTML | PDF file (1.24 MB) | PS file (4.20 MB) | Online Material

Modeling gas-phase H $\mathsf$ O between 5 $\mathsf{\mu}$ m and 540 $\mathsf{\mu}$ m toward massive protostars p. 937
A. M. S. Boonman, S. D. Doty, E. F. van Dishoeck, E. A. Bergin, G. J. Melnick, C. M. Wright and R. Stark
Abstract | References | Full HTML | PDF file (892 KB) | PS file (465 KB)

VLBI observations of T Tauri South p. 957
K. Smith, M. Pestalozzi, M. Güdel, J. Conway and A. O. Benz
Abstract | References | Full HTML | PDF file (490 KB) | PS file (558 KB)

Stellar structure and evolution

XMM-Newton observation of SN 1993J in M 81 p. 969
H.-U. Zimmermann and B. Aschenbach
Abstract | References | Full HTML | PDF file (208 KB) | PS file (291 KB)

Elemental abundance analyses with DAO spectrograms - XXVII. The superficially normal stars $\theta$ And (A2 IV), $\epsilon$ Del (B6 III), $\epsilon$ Aqr (A1.5 V), and $\iota$ And (B9 V) p. 975
D. Kocer, S. J. Adelman, H. Caliskan, A. F. Gulliver and H. Gokmen Tektunali
Abstract | References | Full HTML | PDF file (85.5 KB) | PS file (42.6 KB)

The evolution of V4334 Sgr (Sakurai's object) in the Mid-Infrared p. 981
H. U. Käufl, J. Koller and F. Kerber
Abstract | References | Full HTML | PDF file (114 KB) | PS file (280 KB)

Elemental abundance analyses with the EBASIM spectrograph of the 2.1-m CASLEO Observatory Telescope - I. The late B and early A stars $\vec \xi$ Octantis, $\vec \alpha$ Sextantis, and 68 Tauri p. 987
O. I. Pintado and S. J. Adelman
Abstract | References | Full HTML | PDF file (110 KB) | PS file (154 KB)

High resolution spectroscopy over $\mathsf{\lambda\lambda}$ 8500-8750 Å for GAIA - IV. Extending the cool MK stars sample p. 995
P. M. Marrese, F. Boschi and U. Munari
Abstract | References | Full HTML | PDF file (199 KB) | PS file (92.2 KB)

New low-mass members of the Lupus 3 dark cloud: Further indications of pre-main-sequence evolution strongly affected by accretion p. 1001
F. Comerón, M. Fernández, I. Baraffe, R. Neuhäuser and A. A. Kaas

Abstract | References | Full HTML | PDF file (415 KB) | PS file (438 KB)

Stellar atmospheres

Discovery of a magnetic field in the Slowly Pulsating B star $\zeta$ Cassiopeiae p. 1019
C. Neiner, V. C. Geers, H. F. Henrichs, M. Floquet, Y. Frémat, A.-M. Hubert, O. Preuss and K. Wiersema
Abstract | References | Full HTML | PDF file (1.31 MB) | PS file (1.57 MB)

Doppler Imaging of the Ap star $\epsilon$ Ursae Majoris: Ca, Cr, Fe, Mg, Mn, Ti, Sr p. 1033
T. Lueftinger, R. Kuschnig, N. E. Piskunov and W. W. Weiss
Abstract | References | Full HTML | PDF file (812 KB) | PS file (406 KB)

The Sun

The evolution of twisting coronal magnetic flux tubes p. 1043
T. Török and B. Kliem
Abstract | References | Full HTML | PDF file (2.16 MB) | PS file (825 KB)

A simplified numerical model of coronal energy dissipation based on reduced MHD p. 1061
E. Buchlin, V. Aletti, S. Galtier, M. Velli, G. Einaudi and J.-C. Vial
Abstract | References | Full HTML | PDF file (2.33 MB) | PS file (1.08 MB)

A superfine structure in solar microwave bursts p. 1071
G. P. Chernov, Y. H. Yan and Q. J. Fu
Abstract | References | Full HTML | PDF file (1.24 MB) | PS file (19.0 MB)

Distribution of magnetic flux density at the solar surface - Formulation and results from simulations p. 1083
O. Steiner
Abstract | References | Full HTML | PDF file (143 KB) | PS file (347 KB)

Solar active regions: SOHO/CDS and TRACE observations of quiescent coronal loops p. 1089
G. Del Zanna and H. E. Mason
Abstract | References | Full HTML | PDF file (2.34 MB) | PS file (1.32 MB)

Hot coronal loop oscillations observed with SUMER: Examples and statistics p. 1105
T. J. Wang, S. K. Solanki, W. Curdt, D. E. Innes, I. E. Dammasch and B. Kliem
Abstract | References | Full HTML | PDF file (2.03 MB) | PS file (1.68 MB) | Online Material

Planets and planetary systems

Long-term simulations of the rotational state of small irregular cometary nuclei p. 1123
P. J. Gutiérrez, L. Jorda, J. L. Ortiz and R. Rodrigo
Abstract | References | Full HTML | PDF file (1.09 MB) | PS file (1.51 MB)

Celestial mechanics and astrometry

Expressions to implement the IAU 2000 definition of UT1 p. 1135
N. Capitaine, P. T. Wallace and D. D. McCarthy
Abstract | References | Full HTML | PDF file (545 KB) | PS file (167 KB)

Atomic, molecular and nuclear data

Dielectronic recombination data for dynamic finite-density plasmas - I. Goals and methodology p. 1151
N. R. Badnell, M. G. O'Mullane, H. P. Summers, Z. Altun, M. A. Bautista, J. Colgan, T. W. Gorczyca, D. M. Mitnik, M. S. Pindzola and O. Zatsarinny
Abstract | References | Full HTML | PDF file (952 KB) | PS file (996 KB)

Instruments, observational techniques, and data processing

Integration of the atmospheric fluctuations in a dual-field optical interferometer: The short exposure regime p. 1167
G. Daigne and J.-F. Lestrade
Abstract | References | Full HTML | PDF file (390 KB) | PS file (245 KB)

Astronomy and Astrophysics