Astronomy & Astrophysics

Table of contents

A&A Vol. 455 No. 2

	Astronomy and Astrophysics
	Vol. 455 No. 2 (August IV 2006)
Cover illustration: High-mass star NGC 7538 IRS1: signatures of flow precession (S. Kraus, et al., p. 526)

Letters

An angular power spectrum analysis of the DRAO 1.4 GHz polarization survey: implications for CMB observations p. L9
L. La Porta, C. Burigana, W. Reich and P. Reich
Abstract | Full HTML | PDF file (366 KB) | PS file (739 KB) | References

Sulphur abundances in disk stars as determined from the forbidden $\lambda$ 10821 [S I] line p. L13
N. Ryde

Abstract | Full HTML | PDF file (107 KB) | PS file (48.8 KB) | References

Clusters in the solar neighbourhood: how are they destroyed? p. L17
H. J. G. L. M. Lamers and M. Gieles
Abstract | Full HTML | PDF file (116 KB) | PS file (58.2 KB) | References

HD 65949: the highest known mercury excess of any CP star? p. L21
C. R. Cowley, S. Hubrig, G. F. González and N. Nuñez
Abstract | Full HTML | PDF file (171 KB) | PS file (63.8 KB) | References | Online Material

Formation and structure of the three Neptune-mass planets system around HD 69830 p. L25
Y. Alibert, I. Baraffe, W. Benz, G. Chabrier, C. Mordasini, C. Lovis, M. Mayor, F. Pepe, F. Bouchy, D. Queloz and S. Udry
Abstract | Full HTML | PDF file (106 KB) | PS file (42.1 KB) | References

Astrophysical processes

An infrared study of pure and ion irradiated frozen formamide p. 395
J. R. Brucato, G. A. Baratta and G. Strazzulla
Abstract | Full HTML | PDF file (408 KB) | PS file (291 KB) | References

Magnetoconvection and dynamo coefficients - III. $\alpha$ -effect and magnetic pumping in the rapid rotation regime p. 401
P. J. Käpylä, M. J. Korpi, M. Ossendrijver and M. Stix
Abstract | Full HTML | PDF file (837 KB) | PS file (307 KB) | References

Extragalactic astronomy

Long-term flaring activity of XRF 011030 observed with BeppoSAX p. 413
A. Galli and L. Piro
Abstract | Full HTML | PDF file (333 KB) | PS file (139 KB) | References

Physics of the GRB 030328 afterglow and its environment p. 423
E. Maiorano, N. Masetti, E. Palazzi, S. Savaglio, E. Rol, P. M. Vreeswijk, E. Pian, P. A. Price, B. A. Peterson, M. Jelínek, L. Amati, M. I. Andersen, A. J. Castro-Tirado, J. M. Castro Cerón, A. de Ugarte Postigo, F. Frontera, A. S. Fruchter, J. P. U. Fynbo, J. Gorosabel, A. A. Henden, J. Hjorth, B. L. Jensen, S. Klose, C. Kouveliotou, G. Masi, P. Møller, L. Nicastro, E. O. Ofek, S. B. Pandey, J. Rhoads, N. R. Tanvir, R. A. M. J. Wijers and E. P. J. van den Heuvel
Abstract | Full HTML | PDF file (372 KB) | PS file (356 KB) | References | Online Material

Observations of the intense and ultra-long burst GRB 041219a with the Germanium spectrometer on INTEGRAL p. 433
S. McBreen, L. Hanlon, S. McGlynn, B. McBreen, S. Foley, R. Preece, A. von Kienlin and O. R. Williams
Abstract | Full HTML | PDF file (273 KB) | PS file (141 KB) | References

Weak lensing measurements of dark matter halos of galaxies from COMBO-17 p. 441
M. Kleinheinrich, P. Schneider, H.-W. Rix, T. Erben, C. Wolf, M. Schirmer, K. Meisenheimer, A. Borch, S. Dye, Z. Kovacs and L. Wisotzki
Abstract | Full HTML | PDF file (263 KB) | PS file (103 KB) | References

The globular cluster system of NGC 5846 revisited: colours, sizes and X-ray counterparts p. 453
A. L. Chies-Santos, M. G. Pastoriza, B. X. Santiago and D. A. Forbes
Abstract | Full HTML | PDF file (100 KB) | PS file (460 KB) | References

Discovery of very high energy $\gamma$ -ray emission from the BL Lacertae object H 2356-309 with the HESS Cherenkov telescopes p. 461
F. Aharonian, A. G. Akhperjanian, A. R. Bazer-Bachi, M. Beilicke, W. Benbow, D. Berge, K. Bernlöhr, C. Boisson, O. Bolz, V. Borrel, I. Braun, F. Breitling, A. M. Brown, R. Bühler, I. Büsching, S. Carrigan, P. M. Chadwick, L.-M. Chounet, R. Cornils, L. Costamante, B. Degrange, H. J. Dickinson, A. Djannati-Ataï, L. O'C. Drury, G. Dubus, K. Egberts, D. Emmanoulopoulos, P. Espigat, F. Feinstein, E. Ferrero, G. Fontaine, Seb. Funk, S. Funk, Y. A. Gallant, B. Giebels, J. F. Glicenstein, P. Goret, C. Hadjichristidis, D. Hauser, M. Hauser, G. Heinzelmann, G. Henri, G. Hermann, J. A. Hinton, W. Hofmann, M. Holleran, D. Horns, A. Jacholkowska, O. C. de Jager, B. Khélifi, Nu. Komin, A. Konopelko, I. J. Latham, R. Le Gallou, A. Lemière, M. Lemoine-Goumard, T. Lohse, J. M. Martin, O. Martineau-Huynh, A. Marcowith, C. Masterson, T. J. L. McComb, M. de Naurois, D. Nedbal, S. J. Nolan, A. Noutsos, K. J. Orford, J. L. Osborne, M. Ouchrif, M. Panter, G. Pelletier, S. Pita, G. Pühlhofer, M. Punch, B. C. Raubenheimer, M. Raue, S. M. Rayner, A. Reimer, O. Reimer, J. Ripken, L. Rob, L. Rolland, G. Rowell, V. Sahakian, L. Saugé, S. Schlenker, R. Schlickeiser, U. Schwanke, H. Sol, D. Spangler, F. Spanier, R. Steenkamp, C. Stegmann, G. Superina, J.-P. Tavernet, R. Terrier, C. G. Théoret, M. Tluczykont, C. van Eldik, G. Vasileiadis, C. Venter, P. Vincent, H. J. Völk, S. J. Wagner and M. Ward
Abstract | Full HTML | PDF file (146 KB) | PS file (62.4 KB) | References

Truncated stellar disks in the near infrared - I. Observations p. 467
E. Florido, E. Battaner, A. Guijarro, F. Garzón and A. Castillo-Morales
Abstract | Full HTML | PDF file (1.00 MB) | PS file (889 KB) | References | Online Material

Truncated stellar discs in the near infrared - II. Statistical properties and interpretation p. 475
E. Florido, E. Battaner, A. Guijarro, F. Garzón and A. Castillo-Morales
Abstract | Full HTML | PDF file (125 KB) | PS file (100 KB) | References

Galactic structure, stellar clusters, and populations

Global properties of the HI high velocity sky - A statistical investigation based on the LAB survey p. 481
P. M. W. Kalberla and U. Haud
Abstract | Full HTML | PDF file (1.47 MB) | PS file (400 KB) | References

Global dynamics in galactic triaxial systems. I p. 499
P. M. Cincotta, C. M. Giordano and M. J. Pérez
Abstract | Full HTML | PDF file (352 KB) | PS file (634 KB) | References

Interstellar and circumstellar matter

Dust distributions in debris disks: effects of gravity, radiation pressure and collisions p. 509
A. V. Krivov, T. Löhne and M. Sremcevic
Abstract | Full HTML | PDF file (307 KB) | PS file (446 KB) | References | Online Material

Outflows from the high-mass protostars NGC 7538 IRS1/2 observed with bispectrum speckle interferometry - Signatures of flow precession p. 521
S. Kraus, Y. Balega, M. Elitzur, K.-H. Hofmann, Th. Preibisch, A. Rosen, D. Schertl, G. Weigelt and E. T. Young
Abstract | Full HTML | PDF file (4.33 MB) | PS file (29.3 MB) | References

H $\alpha$ line profiles for a sample of supergiant HII regions - I. The main spectral component p. 539
M. Rozas,
M. G. Richer, J. A. López, M. Relaño and J. E. Beckman
Abstract | Full HTML | PDF file (242 KB) | PS file (452 KB) | References

H $\mathsf{\alpha}$ line profiles for a sample of supergiant HII regions - II. Broad, low intensity components p. 549
M. Rozas, M. G. Richer, J. A. López, M. Relaño and J. E. Beckman
Abstract | Full HTML | PDF file (233 KB) | PS file (712 KB) | References

VLT K-band spectroscopy of massive young stellar objects in (ultra-)compact HII regions p. 561
A. Bik, L. Kaper and L. B. F. M. Waters
Abstract | Full HTML | PDF file (503 KB) | PS file (230 KB) | References

On the internal structure of starless cores - II. A molecular survey of L1498 and L1517B p. 577
M. Tafalla, J. Santiago-García, P. C. Myers, P. Caselli, C. M. Walmsley and A. Crapsi
Abstract | Full HTML | PDF file (1.15 MB) | PS file (970 KB) | References | Online Material

Stellar structure and evolution

Long-term starspot evolution, activity cycle, and orbital period variation of V711 Tauri (HR 1099) p. 595
A. F. Lanza, N. Piluso, M. Rodonò, S. Messina and G. Cutispoto
Abstract | Full HTML | PDF file (2.06 MB) | PS file (576 KB) | References | Online Material

Acoustic oscillations of rapidly rotating polytropic stars - I. Effects of the centrifugal distortion p. 607
F. Lignières, M. Rieutord and D. Reese
Abstract | Full HTML | PDF file (393 KB) | PS file (182 KB) | References | Online Material

Acoustic oscillations of rapidly rotating polytropic stars - II. Effects of the Coriolis and centrifugal accelerations p. 621
D. Reese, F. Lignières and M. Rieutord
Abstract | Full HTML | PDF file (584 KB) | PS file (304 KB) | References | Online Material

Optical/near-infrared observations of the black hole candidate XTE J1720-318 : from high-soft to low-hard state p. 639
S. Chaty and N. Bessolaz
Abstract | Full HTML | PDF file (248 KB) | PS file (364 KB) | References

Near-IR spectroscopy of OH/IR stars in the Galactic centre p. 645
E. Vanhollebeke, J. A. D. L. Blommaert, M. Schultheis, B. Aringer and A. Lançon
Abstract | Full HTML | PDF file (388 KB) | PS file (410 KB) | References | Online Material

IGR J17544-2619: a new supergiant fast X-ray transient revealed by optical/infrared observations p. 653
L. J. Pellizza, S. Chaty and I. Negueruela
Abstract | Full HTML | PDF file (267 KB) | PS file (285 KB) | References

Dwarf novae in the Hamburg quasar survey: rarer than expected p. 659
A. Aungwerojwit, B. T. Gänsicke, P. Rodríguez-Gil, H.-J. Hagen, S. Araujo-Betancor, O. Baernbantner, D. Engels, R. E. Fried, E. T. Harlaftis, D. Mislis, D. Nogami, P. Schmeer, R. Schwarz, A. Staude and M. A. P. Torres
Abstract | Full HTML | PDF file (2.10 MB) | PS file (2.12 MB) | References | Online Material

Pulsation of the Lambda Bootis star HD 210111 p. 673
M. Breger, P. Beck, P. Lenz, L. Schmitzberger, E. Guggenberger and R. R. Shobbrook
Abstract | Full HTML | PDF file (253 KB) | PS file (195 KB) | References

Stellar atmospheres

On the relevance of Compton scattering for the soft X-ray spectra of hot DA white dwarfs p. 679
V. Suleimanov, J. Madej, J. J. Drake, T. Rauch and K. Werner
Abstract | Full HTML | PDF file (162 KB) | PS file (113 KB) | References

The Sun

Particle acceleration at shocks propagating in inhomogeneous magnetic fields p. 685
A. Sandroos and R. Vainio
Abstract | Full HTML | PDF file (519 KB) | PS file (452 KB) | References

Solar coronal-hole plasma densities and temperatures p. 697
K. Wilhelm
Abstract | Full HTML | PDF file (650 KB) | PS file (425 KB) | References

Fast magnetohydrodynamic oscillations in a force-free line-tied coronal arcade p. 709
A. J. Díaz, T. Zaqarashvili and B. Roberts
Abstract | Full HTML | PDF file (435 KB) | PS file (172 KB) | References

On the Lyman $\alpha$ and $\beta$ lines in solar coronal streamers p. 719
N. Labrosse, X. Li and B. Li
Abstract | Full HTML | PDF file (133 KB) | PS file (58.3 KB) | References

Planets and planetary systems

TNO surface ices - Observations of the TNO 55638 (2002 VE $_\mathsf$ ) and analysis of the population's spectral properties p. 725
M. A. Barucci, F. Merlin, E. Dotto, A. Doressoundiram and C. de Bergh
Abstract | Full HTML | PDF file (161 KB) | PS file (99.7 KB) | References

On the ionisation fraction in protoplanetary disks - III. The effect of X-ray flares on gas-phase chemistry p. 731
M. Ilgner and R. P. Nelson
Abstract | Full HTML | PDF file (255 KB) | PS file (124 KB) | References

Instruments, observational techniques, and data processing

Sunyaev-Zel'dovich cluster reconstruction in multiband bolometer camera surveys p. 741
S. Pires, J. B. Juin, D. Yvon, Y. Moudden, S. Anthoine and E. Pierpaoli
Abstract | Full HTML | PDF file (2.52 MB) | PS file (12.4 MB) | References

Optimal placement of a limited number of observations for period searches p. 757
E. S. Saunders, T. Naylor and A. Allan
Abstract | Full HTML | PDF file (617 KB) | PS file (571 KB) | References

Online catalogs and data

Revised and updated catalogue of Byurakan-IRAS stars p. 765
A. M. Mickaelian and K. S. Gigoyan
Abstract | Full HTML | PDF file (301 KB) | PS file (499 KB) | References

A catalogue of quasars and active nuclei: 12th edition p. 773
M.-P. Véron-Cetty and P. Véron
Abstract | Full HTML | PDF file (137 KB) | PS file (83.1 KB) | References

Astronomy and Astrophysics