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Properties of protostars in the Elephant Trunk globule IC 1396A
William T. Reach, Dohy Faied, Jeonghee Rho +7
Extremely red objects, identified in the early Spitzer Space Telescope observations of the bright-rimmed globule IC 1396A and photometrically classified as Class I protostars Class…
An assessment of Li abundances in weak-lined and classical T Tauri stars of the Taurus-Auriga association
P. Sestito, F. Palla, S. Randich
Accurate measurements of lithium abundances in young low-mass stars provide an independent and reliable age diagnostics. Previous studies of nearby star forming regions have identi…
Effects of primordial chemistry on the cosmic microwave background
D. R. G. Schleicher, D. Galli, F. Palla +4
Previous works have demonstrated that the generation of secondary CMB anisotropies due to the molecular optical depth is likely too small to be observed. In this paper, we examine…
Detection of the lithium depletion boundary in the young open cluster IC 4665
S. Manzi, S. Randich, W. J. de Wit +1
The so-called lithium depletion boundary (LDB) provides a secure and independent tool for deriving the ages of young open clusters.In this context, our goal is to determine members…
X-Rays From Massive OB Stars: Thermal Emission From Radiative Shocks
Svetozar A. Zhekov, Francesco Palla
Chandra gratings spectra of a sample of 15 massive OB stars were analyzed under the basic assumption that the X-ray emission is produced in an ensemble of shocks formed in the wind…
A theoretical approach for the interpretation of pulsating PMS intermediate-mass stars
A. Ruoppo, M. Marconi, J. P. Marques +4
The investigation of the pulsation properties of pre-main-sequence intermediate-mass stars is a promising tool to evaluate the intrinsic properties of these stars and to constrain…