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Towards the main sequence: detailed analysis of weak line and post-T Tauri stars
(WILEY-BLACKWELL, 2008)
A detailed study was performed for a sample of low-mass pre-main-sequence (PMS) stars, previously identified as weak-line T Tauri stars, which are compared to members of the Tucanae and Horologium Associations. Aiming to ...
Pre-main-sequence stars in the Lagoon Nebula (M8)
(Oxford University Press, 2007-02)
We report the discovery of new pre-main-sequence (PMS) stars in the Lagoon Nebula (M8) at a distance of 1.25 kpc, based on intermediate-resolution spectra obtained with the Boiler & Chivens spectrograph at the 6.5-m Magellan ...
Rotationally modulated variations and the mean longitudinal magnetic field of the Herbig Ae star HD 101412
(Edp Sciences, 2011-01)
Context. Despite the importance of magnetic fields to a full understanding of the properties of accreting Herbig Ae/Be stars, these fields have scarcely been studied until now over the rotation cycle. One reason for the ...
Fundamental properties of pre-main sequence stars in young, southern star forming regions: Metallicities the weak-lined T-Tauri stars
(EDP Sciences, 2006)
Aims. The primary motivation for this project is to search for metal-rich star forming regions, in which, stars of super-solar metallicity will be created, as hopefully, will be extra-solar planets orbiting them! The two ...
Can T Tauri stars produce high-energy radiation?
(Universidad Nacional Autónoma de México, 2010)
T Tauri stars are low mass, pre-main sequencestars. These objects are surrounded by an accretion disk and present strongmagnetic activity. T Tauri stars are copious X-rays emitters. The X-rays arelikely generated by powerful ...
Spectral energy distribution analysis of class i and class ii fu orionis stars
(IOP Publishing, 2014-06)
FU Orionis stars (FUors) are eruptive pre-main sequence objects thought to represent quasi-periodic or recurring stages of enhanced accretion during the low-mass star-forming process. We characterize the sample of known ...
Abundances in the Herbig Ae star HD 101412. Abundance anomalies; λ Boo-Vega characteristics?
(Edp Sciences, 2010-11)
Context. Recent attention has been directed to abundance variations among very young stars.
Aims. We perform a detailed abundance study of the Herbig Ae star HD 101412, taking advantage of its unusually sharp spectral ...
Star formation history of Canis Major R1 I. Wide-Field X-ray study of the young stellar population
(EDP SCIENCES S A, 2009)
Aims. The CMa R1 star-forming region contains several compact clusters as well as many young early-B stars. It is associated with a well-known bright rimmed nebula, the nature of which is unclear (fossil HII region or ...