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28 papers · 2 filters
The effect of using different EOS in modelling the Alpha Centauri binary system
Andrea Miglio
In this preliminary study we investigate the effects of using different equations of state (CEFF and OPAL) in the calibration of the binary system Alpha Centauri. Constraints comin…
NGC 6231: X-ray properties of the early-type star population
H. Sana, Y. Naze, E. Gosset +3
Based on a deep XMM-Newton observation of the young open cluster NGC 6231, we derive the main X-ray properties of its early-type star population. Among the 610 X-ray sources detect…
The Massive Runaway Stars HD 14633 and HD 15137
T. S. Boyajian, T. D. Beaulieu, D. R. Gies +6
We present results from a radial velocity study of two runaway O-type stars, HD 14633 (ON8.5 V) and HD 15137 (O9.5 III(n)). We find that HD 14633 is a single-lined spectroscopic bi…
A-type stars: evolution, rotation and binarity
A. Noels, J. Montalban, C. Maceroni
We discuss the internal structure of stars in the mass range 1.5 to 4 M_sun from the PMS to the subgiant phase with a particular emphasis on the convective core and the convective…
Hard X-ray Emission Clumps in the gamma-Cygni Supernova Remnant: an INTEGRAL-ISGRI View
A. M. Bykov, A. M. Krassilchtchikov, Yu. A. Uvarov +12
Spatially resolved images of the galactic supernova remnant G78.2+2.1 (gamma-Cygni) in hard X-ray energy bands from 25 keV to 120 keV are obtained with the IBIS-ISGRI imager aboard…
Line formation in solar granulation VI. [C I], C I, CH and C2 lines and the photospheric C abundance
M. Asplund, N. Grevesse, A. J. Sauval +2
The solar photospheric carbon abundance has been determined from [C I], C I, CH vibration-rotation, CH A-X electronic and C2 Swan electronic lines by means of a time-dependent, 3D,…