312 citations · 6.5k across the 153 of their papers we have counts for
8 papers · 1 filter
The young open cluster Berkeley 55
Ignacio Negueruela, Amparo Marco
We present UBV photometry of the highly reddened and poorly studied open cluster Berkeley 55, revealing an important population of B-type stars and several evolved stars of high lu…
The IACOB project: synergies for the Gaia era
S. Simón-Díaz, M. Garcia, A. Herrero +2
The IACOB spectroscopic survey of Galactic OB stars is an ambitious observational project aimed at compiling a large, homogeneous, high-resolution database of optical spectra of ma…
High-mass stars in clusters and associations
Ignacio Negueruela
High-mass stars are major players in the chemical and dynamical evolution of galaxies. Open clusters and associations represent the natural laboratories to study their evolution. I…
A VLT/FLAMES survey for massive binaries in Westerlund 1. III. The WC9d binary W239 and implications for massive stellar evolution
J. S. Clark, B. W. Ritchie, I. Negueruela +4
There is growing evidence that a treatment of binarity amongst OB stars is essential for a full theory of stellar evolution. However the binary properties of massive stars - freque…
The COSPIX mission: focusing on the energetic and obscured Universe
P. Ferrando, A. Goldwurm, P. Laurent +57
Tracing the formation and evolution of all supermassive black holes, including the obscured ones, understanding how black holes influence their surroundings and how matter behaves…
Astrophysical parameters of LS2883 and implications for the PSR B1259-63 gamma-ray binary
Ignacio Negueruela, Marc Ribó, Artemio Herrero +3
Only a few binary systems with compact objects display TeV emission. The physical properties of the companion stars represent basic input to understand the physical mechanisms behi…
The evolution and masses of the neutron star and donor star in the high mass X-ray binary OAO 1657-415
A. B. Mason, J. S. Clark, A. J. Norton +5
We report near-infrared radial velocity measurements of the recently identified donor star in the high mass X-ray binary system OAO 1657-415 obtained in the H band using ISAAC on t…
A massive association around the obscured open cluster RSGC3
Ignacio Negueruela, Carlos Gonzalez-Fernandez, Amparo Marco +1
Four clusters of red supergiants have been discovered in a region of the Milky Way close to base of the Scutum-Crux Arm and the tip of the Long Bar. Population synthesis models ind…