47 citations · 86 across the 9 of their papers we have counts for
9 papers
Stellar Multiplicity in Open Clusters: Investigating Binary Fractions and Their Relationship with Cluster Properties
Ruan P. Alves, Hektor Monteiro, Wilton S. Dias +1
Stellar multiplicity is key in dynamical evolution of open clusters (OCs) and processes of stellar formation and evolution. Since most stars form in multiple systems, investigating…
The OPD Photometric Survey of Open Clusters II. robust determination of the fundamental parameters of 24 open clusters
Hektor Monteiro, Wilton S. Dias, Gabriel R. Hickel +1
In the second paper of the series we continue the investigation of open cluster fundamental parameters using a robust global optimization method to fit model isochrones to photomet…
He II 4686 emission from the massive binary system in Car: constraints to the orbital elements and the nature of the periodic minima
M. Teodoro, A. Damineli, B. Heathcote +27
η Carinae is an extremely massive binary system in which rapid spectrum variations occur near periastron. Most notably, near periastron the He II line increases rapidly in…
Cyclotron Modeling of the Polar CP Tuc
C. V. Rodrigues, J. E. R. Costa, K. M. G. Silva +3
CP Tuc (AX J2315-592) is a polar for which two accretion geometries have been put forward. They differ in the location of the accretion column on the white-dwarf surface. In this s…
Optical polarimetry of HH 135/HH 136
C. V. Rodrigues, G. R. Hickel, A. H. Cerqueira +1
We present optical linear polarimetry in the line of sight to HH135/HH136. The polarimetry of the field stars reveals two populations: one corresponds to a foreground interstellar…
Optical polarimetric monitoring of the type II-plateau SN 2005af
A. Pereyra, A. M. Magalhaes, C. V. Rodrigues +4
Aims. Core-collapse supernovae may show significant polarization that implies non-spherically symmetric explosions. We observed the type II-plateau SN 2005af using optical polarime…