139 citations · 362 across the 10 of their papers we have counts for
10 papers
Chemical Composition of Young Stars in the Leading Arm of the Magellanic System
Lan Zhang, Christian Moni Bidin, Dana I. Casetti-Dinescu +6
Chemical abundances of eight O- and B-type stars are determined from high-resolution spectra obtained with the MIKE instrument on the Magellan 6.5m Clay telescope. The sample is se…
A comprehensive view of the Virgo Stellar Stream
Sonia Duffau, A. Katherina Vivas, Robert Zinn +2
Radial velocities and metallicities have been measured for 82 RR Lyrae identified by the QUEST survey in the direction of the Virgo constellation. Distributed over 90 sq. deg. of t…
NPARSEC: NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results
R. L. Smart, C. G. Tinney, B. Bucciarelli +21
The discovery and subsequent detailed study of T dwarfs has provided many surprises and pushed the physics and modeling of cool atmospheres in unpredicted directions. Distance is a…
Proper motions of Local Group dwarf spheroidal galaxies I: First ground-based results for Fornax
René. A. Méndez, Edgardo Costa, Mario H. Pedreros +3
In this paper we present in detail the methodology and the first results of a ground-based program to determine the absolute proper motion of the Fornax dwarf spheroidal galaxy. Th…
The Chemical Enrichment History of the Small Magellanic Cloud and Its Gradients
Ricardo Carrera, Carme Gallart, Antonio Aparicio +3
We present stellar metallicities derived from Ca II triplet spectroscopy in over 350 red giant branch stars in 13 fields distributed in different positions in the SMC, ranging from…
Three active M dwarfs within 8 pc: L 449-1, L 43-72, & LP 949-15
R. -D. Scholz, G. Lo Curto, R. A. Méndez +4
Three nearby star candidates were selected as bright 2MASS point sources without associated optical sources, i.e. with potentially large proper motions, subsequently confirmed by m…