30 citations · 96 across the 7 of their papers we have counts for
6 papers · 1 filter
Comparing the spatial and kinematic distribution of gas and young stars around the shell-like structure in the CMa OB1 association
Jane Gregorio-Hetem, Bertrand Lefloch, Annibal Hetem +4
The relationship between young stellar clusters and respective parental molecular clouds is still an open issue: for instance, are the similarities between substructures of clouds…
Searching for active low-mass stars in CMa star-forming region: multi-band photometry with T80S
J. Gregorio-Hetem, F. Navarete, A. Hetem +10
An exotic environment surrounds the young stellar groups associated with the Canis Major (CMa) OB1/R1 region, which probably was formed under feedback from at least three supernova…
Runaways and shells around the CMa OB1 association
B. Fernandes, T. Montmerle, T. Santos-Silva +1
The origin of the arc-shaped Sh2-296 nebula is still unclear. Mainly due to its morphology, the nebula has been suggested to be a 0.5 Myr-old supernova remnant (SNR) that could be…
Statistical fractal analysis of 25 young star clusters
J. Gregorio-Hetem, A. Hetem, T. Santos-Silva +1
A large sample of young stellar groups is analysed aiming to investigate their clustering properties and dynamical evolution. A comparison of the Q statistical parameter, measured…
Spectroscopic characterization of X-ray emitting young stars associated with the Sh 2-296 nebula
B. Fernandes, J. Gregorio-Hetem, T. Montmerle +1
We studied a sample of stars associated with the Sh 2-296 nebula, part of the reflection nebulae complex in the region of Canis Major (CMa R1). Our sample corresponds to optical co…
Probing the anomalous extinction of four young star clusters: the use of colour-excess, main sequence fitting and fractal analysis
B. Fernandes, J. Gregorio-Hetem, A. Hetem
Four young star clusters were studied in order to characterize their anomalous extinction or variable reddening that could be due to a possible contamination by dense clouds or cir…