Astronomy & Astrophysics

Table of contents

A&A Vol. 449 No. 1

	Astronomy and Astrophysics
	Vol. 449 No. 1 (April I 2006)
Cover illustration: Minimum spanning trees of three young star clusters (Schmeja, S., & Klessen, R. S., p. 154)

Letters

Phase asynchrony of the north-south sunspot activity p. L1
N. V. Zolotova and D. I. Ponyavin
Abstract | Full HTML | PDF file (265 KB) | PS file (870 KB) | References

Two-phase X-ray burst from GX 3+1 observed by INTEGRAL p. L5
J. Chenevez, M. Falanga, S. Brandt, R. Farinelli, F. Frontera, A. Goldwurm, J. J. M. in 't Zand, E. Kuulkers and N. Lund
Abstract | Full HTML | PDF file (160 KB) | PS file (274 KB) | References

Astrophysical processes

Collisional depolarization of molecular lines. Application to the SiO+H isotropic collisions p. 1
M. Derouich
Abstract | Full HTML | PDF file (233 KB) | PS file (235 KB) | References

Cosmology (including clusters of galaxies)

Spectral shape of the UV ionizing background and O VI absorbers at z $\mathsf{\sim 1.5}$ towards HS 0747+4259 p. 9
D. Reimers, I. I. Agafonova, S. A. Levshakov, H.-J. Hagen, C. Fechner, D. Tytler, D. Kirkman and S. Lopez
Abstract | Full HTML | PDF file (851 KB) | PS file (369 KB) | References

Galaxy pairs in cosmological simulations: effects of interactions on star formation p. 23
M. J. Perez, P. B. Tissera, D. G. Lambas and C. Scannapieco
Abstract | Full HTML | PDF file (204 KB) | PS file (81.6 KB) | References

Kinematics and star formation activity in the z $\mathsf{_{abs}}$ = 2.03954 damped Lyman- $\mathsf{\alpha}$ system towards PKS 0458-020 p. 33
J. Heinmüller, P. Petitjean, C. Ledoux, S. Caucci and R. Srianand
Abstract | Full HTML | PDF file (336 KB) | PS file (145 KB) | References

Spectral indications of thermal Sunyaev-Zel'dovich effect in ARCHEOPS and WMAP data p. 41
C. Hernández-Monteagudo, J. F. Macías-Pérez, M. Tristram and F.-X. Désert
Abstract | Full HTML | PDF file (681 KB) | PS file (164 KB) | References

Extragalactic astronomy

The B3-VLA CSS sample - VI. VLA images at 2 cm p. 49
A. Rossetti, C. Fanti, R. Fanti, D. Dallacasa and C. Stanghellini
Abstract | Full HTML | PDF file (1.48 MB) | PS file (1.74 MB) | References | Online Material

Evidence for intrinsic absorption in the Swift X-ray afterglows p. 61
S. Campana, P. Romano, S. Covino, D. Lazzati, A. De Luca, G. Chincarini, A. Moretti, G. Tagliaferri, G. Cusumano, P. Giommi, V. Mangano, M. Perri, V. La Parola, M. Capalbi, T. Mineo, L. A. Antonelli, D. N. Burrows, J. E. Hill, J. L. Racusin, J. A. Kennea, D. C. Morris, C. Pagani, J. A. Nousek, J. P. Osborne, M. R. Goad, K. L. Page, A. P. Beardmore, O. Godet, P. T. O'Brien, A. A. Wells, L. Angelini and N. Gehrels
Abstract | Full HTML | PDF file (96.8 KB) | PS file (43.8 KB) | References

Surface photometry and structure of high redshift disk galaxies in the HDF-S NICMOS field p. 67
A. Tamm and P. Tenjes
Abstract | Full HTML | PDF file (1.58 MB) | PS file (1.35 MB) | References

Constraining the GRB collimation with a survey for orphan afterglows p. 79
A. Rau, J. Greiner and R. Schwarz
Abstract | Full HTML | PDF file (682 KB) | PS file (1.47 MB) | References

Swift observations of the prompt X-ray emission and afterglow from GRB050126 and GRB050219A p. 89
M. R. Goad, G. Tagliaferri, K. L. Page, A. Moretti, J. P. Osborne, S. Kobayashi, P. Kumar, P. I. Mészáros, G. Chincarini, T. Sakamoto, B. Zhang, S. D. Barthelmy, A. P. Beardmore, D. N. Burrows, S. Campana, M. Capalbi, L. Cominsky, G. Cusumano, N. Gehrels, P. Giommi, O. Godet, J. E. Hill, J. A. Kennea, H. Krimm, V. La Parola, V. Mangano, T. Mineo, D. C. Morris, K. Mukerjee, J. A. Nousek, P. T. O'Brien, C. Pagani, M. Perri, P. Romano and A. A. Wells
Abstract | Full HTML | PDF file (294 KB) | PS file (125 KB) | References

RR Lyrae stars in the inner Large Magellanic Cloud: halo-like location with a disk-like distribution p. 101
A. Subramaniam
Abstract | Full HTML | PDF file (298 KB) | PS file (127 KB) | References

Galactic structure, stellar clusters, and populations

Prospects for population synthesis in the H band: NeMo grids of stellar atmospheres compared to observations p. 109
J. Frémaux, F. Kupka, C. Boisson, M. Joly and V. Tsymbal
Abstract | Full HTML | PDF file (891 KB) | PS file (379 KB) | References

Chemical abundances of 32 mildly metal-poor stars p. 127
H. W. Zhang and G. Zhao
Abstract | Full HTML | PDF file (205 KB) | PS file (67.7 KB) | References

A population synthesis study on the faint X-ray sources in the Galactic center region p. 135
X.-W. Liu and X.-D. Li
Abstract | Full HTML | PDF file (369 KB) | PS file (148 KB) | References

Age estimations of M 31 globular clusters from their spectral energy distributions p. 143
J. Ma, X. Zhou, D. Burstein, Y. Yang, Z. Fan, J. Chen, Z. Jiang, Z. Wu, J. Wu and T. Zhang
Abstract | Full HTML | PDF file (602 KB) | PS file (645 KB) | References | Online Material

Evolving structures of star-forming clusters p. 151
S. Schmeja and R. S. Klessen
Abstract | Full HTML | PDF file (417 KB) | PS file (204 KB) | References | Online Material

Why is the mass function of NGC 6218 flat? p. 161
G. De Marchi, L. Pulone and F. Paresce
Abstract | Full HTML | PDF file (1.38 MB) | PS file (560 KB) | References

Interstellar and circumstellar matter

X-ray emission from radiative shocks in type II supernovae p. 171
T. K. Nymark, C. Fransson and C. Kozma
Abstract | Full HTML | PDF file (821 KB) | PS file (305 KB) | References

An empirical calibration of sulphur abundance in ionised gaseous nebulae p. 193
E. Pérez-Montero, A. I. Díaz, J. M. Vílchez and C. Kehrig
Abstract | Full HTML | PDF file (175 KB) | PS file (112 KB) | References

Dust-scattered X-ray halos around gamma-ray bursts: GRB 031203 revisited and the new case of GRB 050713A p. 203
A. Tiengo and S. Mereghetti
Abstract | Full HTML | PDF file (101 KB) | PS file (3.52 MB) | References

Polarimetry of Li-rich giants p. 211
A. Pereyra, B. V. Castilho and A. M. Magalhães
Abstract | Full HTML | PDF file (1.19 MB) | PS file (3.17 MB) | References

A detailed spectral and morphological study of the gamma-ray supernova remnant RX J1713.7-3946 with HESS p. 223
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, P. M. Chadwick, L.-M. Chounet, R. Cornils, L. Costamante, B. Degrange, H. J. Dickinson, A. Djannati-Ataï, L. O'C. Drury, G. Dubus, D. Emmanoulopoulos, P. Espigat, F. Feinstein, G. Fontaine, Y. Fuchs, 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, S. Klages, 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, C. Schuster, U. Schwanke, M. Siewert, H. Sol, D. Spangler, 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 and S. J. Wagner
Abstract | Full HTML | PDF file (4.03 MB) | PS file (11.1 MB) | References

The interior of the SNR RX J0852.0-4622 (Vela Jr) at radio wavelengths p. 243
E. M. Reynoso, G. Dubner, E. Giacani, S. Johnston and A. J. Green
Abstract | Full HTML | PDF file (915 KB) | PS file (846 KB) | References

VLT-ISAAC 3-5 $\mu$ m spectroscopy of embedded young low-mass stars - III. Intermediate-mass sources in Vela p. 251
W.-F. Thi, E. F. van Dishoeck, E. Dartois, K. M. Pontoppidan, W. A. Schutte, P. Ehrenfreund, L. d'Hendecourt and H. J. Fraser
Abstract | Full HTML | PDF file (3.15 MB) | PS file (5.51 MB) | References | Online Material

Resolving the disk rotation of HD 97048 and HD 100546 in the [O I] 6300 Å line: evidence for a giant planet orbiting HD 100546 p. 267
B. Acke and M. E. van den Ancker
Abstract | Full HTML | PDF file (995 KB) | PS file (398 KB) | References

Stellar structure and evolution

A spectroscopic study of southern (candidate) $\gamma$ Doradus stars - I. Time series analysis p. 281
P. De Cat, L. Eyer, J. Cuypers, C. Aerts, B. Vandenbussche, K. Uytterhoeven, K. Reyniers, K. Kolenberg, M. Groenewegen, G. Raskin, T. Maas and S. Jankov
Abstract | Full HTML | PDF file (1.14 MB) | PS file (342 KB) | References | Online Material

Modeling $\mathsf{\beta}$ Virginis using seismological data p. 293
P. Eggenberger and F. Carrier
Abstract | Full HTML | PDF file (345 KB) | PS file (206 KB) | References

Multiperiodicity in the large-amplitude rapidly-rotating $\beta\,$ Cephei star HD 203664 p. 305
C. Aerts, P. De Cat, J. De Ridder, H. Van Winckel, G. Raskin, G. Davignon and K. Uytterhoeven
Abstract | Full HTML | PDF file (1.69 MB) | PS file (714 KB) | References

New evolutionary calculations for the born again scenario p. 313
M. M. Miller Bertolami, L. G. Althaus, A. M. Serenelli and J. A. Panei
Abstract | Full HTML | PDF file (695 KB) | PS file (596 KB) | References | Online Material

AO Velorum: a young quadruple system with a ZAMS eclipsing BpSi primary p. 327
J. F. González, S. Hubrig, N. Nesvacil and P. North
Abstract | Full HTML | PDF file (539 KB) | PS file (520 KB) | References

A multisite photometric campaign on the pre-main-sequence $\delta$ Scuti pulsator IP Persei p. 335
V. Ripepi, S. Bernabei, M. Marconi, F. Palla, A. Arellano Ferro, A. Bonanno, P. Ferrara, A. Frasca, X. J. Jiang, S.-L. Kim, S. Marinoni, G. Mignemi, M. J. P. F. G. Monteiro, T. D. Oswalt, P. Reegen, R. Janulis, E. Rodriguez, A. Rolland, A. Ruoppo, L. Terranegra and K. Zwintz
Abstract | Full HTML | PDF file (1.28 MB) | PS file (2.24 MB) | References | Online Material

Stellar atmospheres

The sodium abundance in ${\lambda}$ Bootis stars p. 345
S. M. Andrievsky
Abstract | Full HTML | PDF file (61.1 KB) | PS file (27.0 KB) | References

VLT-UVES analysis of two giants in the bulge metal-poor globular cluster HP-1 - Analysis of two giants in HP-1 p. 349
B. Barbuy, M. Zoccali, S. Ortolani, Y. Momany, D. Minniti, V. Hill, A. Renzini, R. M. Rich, E. Bica, L. Pasquini and R. K. S. Yadav
Abstract | Full HTML | PDF file (1.77 MB) | PS file (3.48 MB) | References | Online Material

The Sun

Slow halo CMEs with shock signatures p. 359
S. Pohjolainen and N. J. Lehtinen
Abstract | Full HTML | PDF file (2.35 MB) | PS file (3.24 MB) | References | Online Material

Observation of a bright coronal downflow by SOHO/EIT p. 369
D. Tripathi, S. K. Solanki, R. Schwenn, V. Bothmer, M. Mierla and G. Stenborg
Abstract | Full HTML | PDF file (1.40 MB) | PS file (1.63 MB) | References

Evidence for low dimensional chaos in sunspot cycles p. 379
C. Letellier, L. A. Aguirre, J. Maquet and R. Gilmore
Abstract | Full HTML | PDF file (1.43 MB) | PS file (879 KB) | References

Leakage of waves from coronal loops by wave tunneling p. 389
C. S. Brady, E. Verwichte and T. D. Arber
Abstract | Full HTML | PDF file (2.63 MB) | PS file (1.17 MB) | References

Planets and planetary systems

Time-dependent 3D modulation of Jovian electrons - Comparison with Ulysses/KET observations p. 401
D. Lange, H. Fichtner and R. Kissmann
Abstract | Full HTML | PDF file (1.36 MB) | PS file (1.20 MB) | References

Saturn's internal structure and carbon enrichment p. 411
O. Mousis, Y. Alibert and W. Benz
Abstract | Full HTML | PDF file (125 KB) | PS file (172 KB) | References

A massive planet to the young disc star HD 81040 p. 417
A. Sozzetti, S. Udry, S. Zucker, G. Torres, J. L. Beuzit, D. W. Latham, M. Mayor, T. Mazeh, D. Naef, C. Perrier, D. Queloz and J.-P. Sivan
Abstract | Full HTML | PDF file (336 KB) | PS file (259 KB) | References

Online catalogs and data

Optical identification of ROSAT-FSC sources p. 425
A. M. Mickaelian, L. R. Hovhannisyan, D. Engels, H.-J. Hagen and W. Voges
Abstract | Full HTML | PDF file (795 KB) | PS file (4.21 MB) | References

The CdC2000 Bordeaux Carte du Ciel catalogue ( $\mathsf{+11\degr \leq \delta \leq +18\degr}$ ) p. 435
M. Rapaport, C. Ducourant, J. F. Le Campion, A. Fresneau, R. W. Argyle, C. Soubiran, R. Teixeira, J. I. B. Camargo, J. Colin, G. Daigne, J. P. Périé and Y. Réquième
Abstract | Full HTML | PDF file (4.43 MB) | PS file (1.27 MB) | References

Astronomy and Astrophysics