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- Publications
- Influence
Binary Interaction Dominates the Evolution of Massive Stars
- H. Sana, S. E. de Mink, +7 authors F. R. Schneider
- Physics, Medicine
- Science
- 26 July 2012
Star Partners Stars more massive than eight times the mass of the Sun are rare and short-lived, yet they are fundamentally important because they produce all the heavy elements in the universe, such… Expand
Early-type stars in the core of the young open cluster Westerlund 2 ⋆⋆⋆
- G. Rauw, J. Manfroid, +5 authors A. Moffat
- Physics
- 21 December 2006
Aims. The properties of the early-type stars in the core of the Westerlund 2 cluster are examined in order to establish a link bet ween the cluster and the very massive Wolf-Rayet binary WR 20a as… Expand
An XMM–Newton view of the young open cluster NGC 6231 – II. The OB star population★
- H. Sana, G. Rauw, Y. Naz'e, E. Gosset, J.-M. Vreux
- Physics
- 20 July 2006
In this second paper of the series, we pursue the analysis of the 180-ks XMM‐Newton campaign towards the young open cluster NGC 6231 and we focus on its rich OB star population. We present a… Expand
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
- K. Nandra, D. Barret, +237 authors I. Zhuravleva
- Physics
- 1 June 2013
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of two key questions in… Expand
The Gaia-ESO Public Spectroscopic Survey
- G. Gilmore, S. Randich, +272 authors T. Zwitter
- Physics
- 1 March 2012
The Gaia-ESO Public Spectroscopic Survey has begun and will obtain high quality spectroscopy of some 100000 Milky Way stars, in the field and in open clusters, down to magnitude 19, systematically ...
The spectrum of the very massive binary system WR 20a (WN6ha + WN6ha): Fundamental parameters and wind interactions
- G. Rauw, P. Crowther, +6 authors P. Williams
- Physics
- 1 March 2005
We analyse the optical spectrum of the very massive binary system WR 20a (WN6ha + WN6ha). The most prominent emission lines, Hα and He λ 4686, display strong phase-locked profile variability. From… Expand
WR 20a: a massive cornerstone binary system comprising two extreme early-type stars ⋆
- G. Rauw, M. D. Becker, +6 authors P. Williams
- Physics
- 28 April 2004
We analyse spectroscopic observations of WR 20a revealing that this star is a massive early-type binary system with a most probable orbital period of ∼3.675 days. Our spectra indicate that both… Expand
Gaia Data Release 2: Properties and validation of the radial velocities
- D. Katz, P. Sartoretti, +51 authors M. vZerjal
- Physics
- 25 April 2018
For Gaia DR2 (GDR2), 280 million spectra, collected by the RVS instrument on-board Gaia, were processed and median radial velocities were derived for 9.8 million sources brighter than Grvs = 12 mag.… Expand
Gaia Data Release 2. Gaia Radial Velocity Spectrometer
- M. Cropper, D. Katz, +40 authors Y. Damerdji
- Physics
- 25 April 2018
This paper presents the specification, design, and development of the Radial Velocity Spectrometer (RVS) on the European Space Agency’s Gaia mission. Starting with the rationale for the full six… Expand
The massive star binary fraction in young open clusters – II. NGC 6611 (Eagle Nebula)
- H. Sana, E. Gosset, C. J. Evans
- Physics
- 2 September 2009
Based on a set of over 100 medium- to high-resolution optical spectra collected from 2003 to 2009, we investigate the properties of the O-type star population in NGC 6611 in the core of the Eagle… Expand