386 citations · 4.7k across the 101 of their papers we have counts for
29 papers · 1 filter
Solar-like oscillation amplitudes and line-widths as a probe for turbulent convection in stars
R. Samadi, K. Belkacem, M. -J. Goupil +2
Excitation of solar-like oscillations is attributed to turbulent convection and takes place at the upper-most part of the outer convective zones. Amplitudes of these oscillations d…
First stars VII. Lithium in extremely metal poor dwarfs
P. Bonifacio, P. Molaro, T. Sivarani +12
Aims. This study aims to determine the level and constancy of the Spite plateau as definitively as possible from homogeneous high-quality VLT-UVES spectra of 19 of the most metal-p…
Chandra point-source counts in distant galaxy clusters
M. Branchesi, I. M. Gioia, C. Fanti +2
With the superb angular resolution of the Chandra Observatory, it is now possible to detect X-ray point sources, either embedded in galaxy clusters or along the cluster line of sig…
The stellar mass content of distant galaxy groups
Michael L. Balogh, Dave Wilman, Robert D. E. Henderson +8
We have obtained near-infrared imaging of 58 galaxy groups, in the redshift range 0.1<z<0.6, from the William Herschel Telescope and from the Spitzer IRAC data archive. The groups…
Spectral analysis of X-ray pulsars with the INTEGRAL observatory
E. V. Filippova, S. S. Tsygankov, A. A. Lutovinov +1
We studied spectra for 34 accretion-powered X-ray and one millisecond pulsars that were within the field of view of the INTEGRAL observatory over two years (December 2002 - January…
Pulse profiles and cyclotron line energy dependence on X-ray pulsars luminosity
S. Tsygankov, A. Lutovinov, E. Churazov +1
We present the results of broad band (3-100 keV) observations of several X-ray pulsars with the INTEGRAL and RXTE observatories. We concentrate on the luminosity and energy depende…