© ESO, 2015.Context. FS CMa stars are low-luminosity objects showing the B[e] phenomenon whose evolutionary state remains a puzzle. These stars are surrounded by compact disks of warm dust of unknown origin. Hitherto, membership of FS CMa stars to coeval populations has never been confirmed. Aims. The discovery of low-luminosity line emitters in the young massive clusters Mercer 20 and Mercer 70 prompts us to investigate the nature of such objects. We intend to confirm membership to coeval populations in order to characterize these emission-line stars through the cluster properties. Methods. Based on ISAAC/VLT medium-resolution spectroscopy and NICMOS/HST photometry of massive cluster members, new characterizations of Mercer 20 and Mercer 7...
Recent photometric studies of RGB stars have found that the presence of multiple stellar populations...
Context. Recent near-infrared data have contributed to unveiling massive and obscured stellar popula...
International audienceThe evolution of massive stars is only partly understood. Observational constr...
Context. FS CMa stars are low-luminosity objects showing the B[e] phenomenon whose evolutionary stat...
International audienceAn exotic environment surrounds the young stellar groups associated with the C...
This paper describes recent studies of the FS CMa-type objects, a group of stars showing the B[e] ph...
International audienceContext. The evolution of massive stars is not fully constrained. Studies of y...
It has recently been claimed that the nebula, Dragonfish, is powered by a superluminous but elusive ...
FS CMa objects is a group of intermediate luminosity B- and early A-type stars that exhibit the B[e]...
FS CMa type stars is a group of ~70 objects formerly known as unclassified stars with the B[e] pheno...
Aims. The Canis Major OB1 Association has an intriguing scenario of star formation, especially in th...
During the last decade, hundreds of young massive cluster candidates have been detected in the disk ...
Q1 The B[e] phenomenon is defined as the simultaneous presence of low-excitation forbidden line emis...
The B[e] phenomenon was defined in the early days of infrared astronomy as a combination of the foll...
International audienceAims: The CMa R1 star-forming region contains several compact clusters as well...
Recent photometric studies of RGB stars have found that the presence of multiple stellar populations...
Context. Recent near-infrared data have contributed to unveiling massive and obscured stellar popula...
International audienceThe evolution of massive stars is only partly understood. Observational constr...
Context. FS CMa stars are low-luminosity objects showing the B[e] phenomenon whose evolutionary stat...
International audienceAn exotic environment surrounds the young stellar groups associated with the C...
This paper describes recent studies of the FS CMa-type objects, a group of stars showing the B[e] ph...
International audienceContext. The evolution of massive stars is not fully constrained. Studies of y...
It has recently been claimed that the nebula, Dragonfish, is powered by a superluminous but elusive ...
FS CMa objects is a group of intermediate luminosity B- and early A-type stars that exhibit the B[e]...
FS CMa type stars is a group of ~70 objects formerly known as unclassified stars with the B[e] pheno...
Aims. The Canis Major OB1 Association has an intriguing scenario of star formation, especially in th...
During the last decade, hundreds of young massive cluster candidates have been detected in the disk ...
Q1 The B[e] phenomenon is defined as the simultaneous presence of low-excitation forbidden line emis...
The B[e] phenomenon was defined in the early days of infrared astronomy as a combination of the foll...
International audienceAims: The CMa R1 star-forming region contains several compact clusters as well...
Recent photometric studies of RGB stars have found that the presence of multiple stellar populations...
Context. Recent near-infrared data have contributed to unveiling massive and obscured stellar popula...
International audienceThe evolution of massive stars is only partly understood. Observational constr...