Astronomy & Astrophysics

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A&A Vol. 370 No. 1

	Astronomy and Astrophysics
	Vol. 370 No. 1 (April IV 2001)
Cover illustration: Doppler image of AG Doradus in pole-on view (Washuettl, A., & Strassmeier, K.G. p. 227)

Letters

A second substellar companion in the Gliese 86 system - A brown dwarf in an extrasolar planetary system p. L1
S. G. Els, M. F. Sterzik, F. Marchis, E. Pantin, M. Endl and M. Kürster
Abstract | References | Full HTML | PDF file (261 KB) | PS file (432 KB)

The radio surroundings of the microquasar GRO J1655-40 p. L5
J. A. Combi, G. E. Romero, P. Benaglia and I. F. Mirabel
Abstract | References | Full HTML | PDF file (927 KB) | PS file (1.02 MB)

Intra-day variability and the interstellar medium towards 0917+624 p. L9
D. L. Jauncey and J.-P. Macquart
Abstract | References | Full HTML | PDF file (134 KB) | PS file (406 KB)

Extended radio emission after the soft X-ray maximum of the NOAA 9077 AR solar flare on July 10, 2000 p. L13
Shujuan Wang, Yihua Yan and Qijun Fu
Abstract | References | Full HTML | PDF file (220 KB) | PS file (779 KB)

Observational evidence for mass ejection during soft X-ray dips in GRS 1915+105 p. L17
S. V. Vadawale, A. R. Rao, A. Nandi and S. K. Chakrabarti
Abstract | References | Full HTML | PDF file (507 KB) | PS file (452 KB)

ROSAT-HRI detection of the Class I protostar YLW16A in the $\mathsf{\rho}$ Ophiuchi dark cloud p. L22
N. Grosso
Abstract | References | Full HTML | PDF file (168 KB) | PS file (280 KB)

Deep H I observations of the compact high-velocity cloud HVC 125+41-207 p. L26
C. Brüns, J. Kerp and A. Pagels
Abstract | References | Full HTML | PDF file (307 KB) | PS file (507 KB)

Extragalactic astronomy

The evolution of emission lines in H II galaxies p. 1
G. Stasinska, D. Schaerer and C. Leitherer
Abstract | References | Full HTML | PDF file (971 KB) | PS file (357 KB)

Chemical evolution and depletion pattern in Damped Lyman $\alpha$ systems p. 23
J. L. Hou, S. Boissier and N. Prantzos
Abstract | References | Full HTML | PDF file (897 KB) | PS file (721 KB)

IC 10: More evidence that it is a blue compact dwarf p. 34
M. G. Richer, A. Bullejos, J. Borissova, M. L. McCall, H. Lee, R. Kurtev, L. Georgiev, R. L. Kingsburgh, R. Ross and M. Rosado
Abstract | References | Full HTML | PDF file (527 KB) | PS file (543 KB)

The external shear in the gravitationally lensed system Q 2237+0305: A two-plane lens modelling p. 43
B. M. Mihov
Abstract | References | Full HTML | PDF file (278 KB) | PS file (205 KB)

Bipolar hypershell models of the extended hot interstellar medium in spiral galaxies p. 53
Y. Sofue and A. Vogler
Abstract | References | Full HTML | PDF file (821 KB) | PS file (1.91 MB)

Superluminal motion in a compact steep spectrum radio source 3C 138 p. 65
Z.-Q. Shen, D. R. Jiang, S. Kameno and Y. J. Chen
Abstract | References | Full HTML | PDF file (158 KB) | PS file (131 KB)

On the origin of the FeK $\alpha$ line in the Seyfert 2 galaxy NGC 7172 p. 70
M. Dadina, L. Bassani, M. Cappi, G. G. C. Palumbo, L. Piro, M. Guainazzi, G. Malaguti, G. Di Cocco and M. Trifoglio
Abstract | References | Full HTML | PDF file (246 KB) | PS file (182 KB)

Observations of the bright radio sources in the North Celestial Pole region at the RATAN-600 radio telescope p. 78
M. G. Mingaliev, V. A. Stolyarov, R. D. Davies, S. J. Melhuish, N. A. Bursov and G. V. Zhekanis
Abstract | References | Full HTML | PDF file (165 KB) | PS file (187 KB)

Stellar clusters and associations

The IMF of open star clusters with Tycho-2 p. 87
J. Sanner and M. Geffert
Abstract | References | Full HTML | PDF file (1.15 MB) | PS file (883 KB)

High-resolution imaging of ultracompact HII regions - III. G11.11-0.40 and G341.21-0.21 p. 100
Th. Henning, M. Feldt, B. Stecklum and R. Klein
Abstract | References | Full HTML | PDF file (1.10 MB) | PS file (1.57 MB)

Formation, structure and evolution of stars

Evidence for TeV gamma ray emission from Cassiopeia A p. 112
F. Aharonian, A. Akhperjanian, J. Barrio, K. Bernlöhr, H. Börst, H. Bojahr, O. Bolz, J. Contreras, J. Cortina, S. Denninghoff, V. Fonseca, J. Gonzalez, N. Götting, G. Heinzelmann, G. Hermann, A. Heusler, W. Hofmann, D. Horns, A. Ibarra, C. Iserlohe, I. Jung, R. Kankanyan, M. Kestel, J. Kettler, A. Kohnle, A. Konopelko, H. Kornmeyer, D. Kranich, H. Krawczynski, H. Lampeitl, M. Lopez, E. Lorenz, F. Lucarelli, N. Magnussen, O. Mang, H. Meyer, R. Mirzoyan, A. Moralejo, E. Ona, L. Padilla, M. Panter, R. Plaga, A. Plyasheshnikov, J. Prahl, G. Pühlhofer, G. Rauterberg, A. Röhring, W. Rhode, G. P. Rowell, V. Sahakian, M. Samorski, M. Schilling, F. Schröder, M. Siems, W. Stamm, M. Tluczykont, H. J. Völk, C. A. Wiedner and W. Wittek
Abstract | References | Full HTML | PDF file (312 KB) | PS file (359 KB)

HD 152248: Evidence for a colliding wind interaction p. 121
H. Sana, G. Rauw and E. Gosset
Abstract | References | Full HTML | PDF file (345 KB) | PS file (335 KB)

Excitation of stellar p-modes by turbulent convection - I. Theoretical formulation p. 136
R. Samadi and M.-J. Goupil
Abstract | References | Full HTML | PDF file (204 KB) | PS file (184 KB)

The sun

Excitation of stellar p-modes by turbulent convection - II. The Sun p. 147
R. Samadi, M.-J. Goupil and Y. Lebreton
Abstract | References | Full HTML | PDF file (304 KB) | PS file (208 KB)

Formation, structure and evolution of stars

ROSAT all-sky survey of W Ursae Majoris stars and the problem of supersaturation p. 157
K. Stepien, J. H. M. M. Schmitt and W. Voges
Abstract | References | Full HTML | PDF file (213 KB) | PS file (172 KB)

The origin of the runaway high-mass X-ray binary HD 153919/4U1700-37 p. 170
A. Ankay, L. Kaper, J. H. J. de Bruijne, J. Dewi, R. Hoogerwerf and G. J. Savonije
Abstract | References | Full HTML | PDF file (171 KB) | PS file (149 KB)

The AGB phase-transition outside the local group: K-band observations of young star clusters in NGC 7252 p. 176
C. Maraston, M. Kissler-Patig, J. P. Brodie, P. Barmby and J. P. Huchra
Abstract | References | Full HTML | PDF file (448 KB) | PS file (428 KB)

Chemical yields from low- and intermediate-mass stars: Model predictions and basic observational constraints p. 194
P. Marigo
Abstract | References | Full HTML | PDF file (762 KB) | PS file (393 KB)

Stellar atmospheres

A study of the chromospherically active binaries UX Fornacis and AG Doradus p. 218
A. Washuettl and K. G. Strassmeier
Abstract | References | Full HTML | PDF file (694 KB) | PS file (469 KB)

Diffuse matter in space

A molecular-line study of clumps with embedded high-mass protostar candidates p. 230
J. Brand, R. Cesaroni, F. Palla and S. Molinari
Abstract | References | Full HTML | PDF file (2.12 MB) | PS file (1.86 MB)

The supernova remnants G 67.7+1.8, G 31.5-0.6 and G 49.2-0.7 p. 265
F. Mavromatakis, J. Papamastorakis, J. Ventura, W. Becker, E. V. Paleologou and D. Schaudel
Abstract | References | Full HTML | PDF file (454 KB) | PS file (835 KB)

The sun

Polar surges and macrospicules - II. Dynamics of an eruptive event from off-limb observations p. 273
A. A. Georgakilas, S. Koutchmy and E. B. Christopoulou
Abstract | References | Full HTML | PDF file (365 KB) | PS file (2.66 MB)

SOHO/SUMER observations and analysis of the hydrogen Lyman spectrum in solar prominences p. 281
P. Heinzel, B. Schmieder, J.-C. Vial and P. Kotrc
Abstract | References | Full HTML | PDF file (1.33 MB) | PS file (2.29 MB)

Modelling of explosive events in the solar transition region in a 2D environment - I. General reconnection jet dynamics p. 298
I. Roussev, K. Galsgaard, R. Erdélyi and J. G. Doyle
Abstract | References | Full HTML | PDF file (1.92 MB) | PS file (1.76 MB)

The solar system

Asteroid candidates for mass determination p. 311
A. Galád
Abstract | References | Full HTML | PDF file (120 KB) | PS file (113 KB)

Celestial mechanics and astrometry

Relativistic theory for time and frequency transfer to order $\vec {c}^$ p. 320
L. Blanchet, C. Salomon, P. Teyssandier and P. Wolf
Abstract | References | Full HTML | PDF file (206 KB) | PS file (190 KB)

Hamiltonian theory for the non-rigid Earth: Semidiurnal terms p. 330
J. Getino, J. M. Ferrándiz and A. Escapa
Abstract | References | Full HTML | PDF file (211 KB) | PS file (230 KB)

Physical and chemical processes

Thermal stability of self-gravitating, optically thin accretion disks p. 342
G. Bertin and G. Lodato
Abstract | References | Full HTML | PDF file (238 KB) | PS file (159 KB)

Astronomy and Astrophysics