42 citations · 114 across the 11 of their papers we have counts for
11 papers
Gravity modes and potential evidence for Rossby Waves in late O-type supergiants
Lydia S. Cidale, Alejandra Christen, Aldana Alberici Adam +6
The properties of O-type supergiant stars remain largely unexplored. By analysing their light variations, we can unravel underlying physical phenomena, such as binarity, stellar pu…
MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy
P. Royer, T. Merle, K. Dsilva +71
Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a given object or a given spec…
The Belgian repository of fundamental atomic data and stellar spectra (BRASS) II. Quality assessment of atomic data for unblended lines in FGK stars
M. Laverick, A. Lobel, P. Royer +7
Fundamental atomic transition parameters, such as oscillator strengths and wavelengths, play a key role in modelling and understanding the chemical composition of stars in the univ…
The Belgian repository of fundamental atomic data and stellar spectra (BRASS). I. Cross-matching atomic databases of astrophysical interest
Mike Laverick, Alex Lobel, Thibault Merle +5
Fundamental atomic parameters, such as oscillator strengths, play a key role in modelling and understanding the chemical composition of stars in the universe. Despite the significa…
On the super-orbital modulation of supergiant high mass X-ray binaries
E. Bozzo, L. Oskinova, A. Lobel +1
The long-term X-ray lightcurves of classical supergiant X-ray binaries and supergiant fast X-ray transients show relatively similar super-orbital modulations, which are still lacki…
A test field for Gaia. Radial velocity catalogue of stars in the South Ecliptic Pole
Y. Frémat, M. Altmann, E. Pancino +25
Gaia is a space mission currently measuring the five astrometric parameters as well as spectrophotometry of at least 1 billion stars to G = 20.7 mag with unprecedented precision. T…
Automated procedure to derive fundamental parameters of B and A stars: Application to the young cluster NGC 3293
E. Aydi, M. Gebran, R. Monier +3
This work describes a procedure to derive several fundamental parameters such as the effective temperature, surface gravity, equatorial rotational velocity and microturbulent veloc…
The yellow hypergiant HR 5171 A: Resolving a massive interacting binary in the common envelope phase
O. Chesneau, A. Meilland, E. Chapellier +20
We initiated long-term optical interferometry monitoring of the diameters of unstable yellow hypergiants (YHG) with the goal of detecting both the long-term evolution of their radi…
Microturbulence in A/F Am/Fm stars
M. Gebran, R. Monier, F. Royer +2
A programme to observe all A dwarfs in open clusters brighter than V=6.5 mag of various ages and in the field was initiated several years ago. In this work we present the current s…
Modeling the Asymmetric Wind of Massive LBV Binary MWC 314
A. Lobel, J. Groh, K. Torres Dozinel +13
Spectroscopic monitoring with Mercator-HERMES over the past two years reveals that MWC 314 is a massive binary system composed of an early B-type primary LBV star and a less-lumino…
X-shooter, NACO, and AMBER observations of the LBV Pistol Star \footnote{Based on ESO runs 85.D-0182A, 085.D-0625AC}
Christophe Martayan, Ronny Blomme, Jean-Baptiste Le Bouquin +15
We present multi-instruments and multi-wavelengths observations of the famous LBV star Pistol Star. These observations are part of a larger program about early O stars at different…