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The Gaia -ESO Survey: Age spread in the star forming region NGC 6530 from the HR diagram and gravity indicators
(EDP Sciences, 2019)
Context. In very young clusters, stellar age distribution is empirical proof of the duration of star cluster formation and thus it gives indications of the physical mechanisms involved in the star formation process. ...
A rotação estelar revelada pela modulação fotométrica
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2019-12-16)
Stellar rotation is one of the most important parameters in astrophysics and its effects
are observed in all evolutionary stage, since the beginning. This present work shows an
analysis of the rotation from photometric ...
Recovery of the star formation history of the LMC from the VISTA survey of the Magellanic system
(EDP SCIENCES S A, 2009)
The VISTA near infrared survey of the Magellanic System (VMC) will provide deep YJK(s) photometry reaching stars in the oldest turn-off point throughout the Magellanic Clouds (MCs). As part of the preparation for the survey, ...
The VMC survey. XI. Radial stellar population gradients in the galactic globular cluster 47 Tucanae
(IOP Publishing, 2014-07)
We present a deep near-infrared color-magnitude diagram of the Galactic globular cluster 47 Tucanae, obtained with the Visible and Infrared Survey Telescope for Astronomy (VISTA) as part of the VISTA near-infrared Y, J, K ...
Extinction in the Star Cluster SAI 113 and Galactic Structure in Carina
(IOP Publishing, 2017-04-07)
Photometric CCD UB VI C photometry obtained for 4860 stars surrounding the embedded southern cluster SAI 113 (Skiff 8) is used to examine the reddening in the field and derive the distance to the cluster and nearby van ...
Diagramas Hertzsprung-Russell de cúmulos estelares en la Vía Láctea a partir de Gaia Data Release 3
(Universidad de los AndesFísicaFacultad de CienciasDepartamento de Física, 2023-06-01)
"Una de las formas de estudiar la Vía Láctea es mediante el análisis de diagramas Hertzsprung-Russell, que permiten el estudio de estrellas según su ubicación en los mismos. Los cúmulos
estelares son un ejemplo de este ...
SMASHing the low surface brightness SMC
(Oxford University Press, 2020)
The periphery of the Small Magellanic Cloud (SMC) can unlock important information regarding galaxy formation and evolution in interacting systems. Here, we present a detailed study of the extended stellar structure of the ...
Globular clusters as laboratories for stellar evolution
(2010)
Globular clusters have long been considered the closest approximation to a physicist's laboratory in astrophysics, and as such a near-ideal laboratory for (low-mass) stellar evolution. However, recent observations have ...
Galactic Structure in the Outer Disk: The Field in the Line of Sight to the Intermediate-Age open Cluster Tombaugh
(2017)
We employ optical photometry and high-resolution spectroscopy to study a field toward the open cluster Tombaugh. 1, where we identify a complex population mixture that we describe in terms of young and old Galactic thin ...
An Overview of the Rotational Behavior of Metal-poor Stars
(2009)
We describe the behavior of the rotational velocity in metal-poor stars ([Fe/H] ~ -0.5 dex) at different evolutionary stages, based on v sin i values from the literature. Our sample is composed of stars in the field and ...