307 citations · 1.4k across the 31 of their papers we have counts for
6 papers · 1 filter
First stars VII. Lithium in extremely metal poor dwarfs
P. Bonifacio, P. Molaro, T. Sivarani +12
Aims. This study aims to determine the level and constancy of the Spite plateau as definitively as possible from homogeneous high-quality VLT-UVES spectra of 19 of the most metal-p…
The HgMn Binary Star Phi Herculis: Detection and Properties of the Secondary and Revision of the Elemental Abundances of the Primary
R. T. Zavala, S. J. Adelman, C. A. Hummel +6
Observations of the Mercury-Manganese star Phi Herculis with the Navy Prototype Optical Interferometer (NPOI) conclusively reveal the previously unseen companion in this single-lin…
Short timescale variability in the Faint Sky Variability Survey
L. Morales-Rueda, P. J. Groot, T. Augusteijn +3
We present the V band variability analysis of the point sources in the Faint Sky Variability Survey on time scales from 24 minutes to tens of days. We find that about one percent o…
Molecular excitation in the Eagle nebula's fingers
F. Schuller, S. Leurini, C. Hieret +5
Context: The M16 nebula is a relatively nearby Hii region, powered by O stars from the open cluster NGC 6611, which borders to a Giant Molecular Cloud. Radiation from these hot sta…
The old globular cluster system of the dIrr galaxy NGC1427A in the Fornax cluster
Iskren Y. Georgiev, Michael Hilker, Thomas H. Puzia +5
We present a study of the old globular cluster (GC) population of the dwarf irregular galaxy NGC 1427A using multi-wavelength VLT observations in U, B, V, I, H_alpha, J, H, and Ks…
Spatial clustering of USS sources and galaxies
Carlos G. Bornancini, Nelson Padilla, Diego G. Lambas +1
We present measurements of the clustering properties of galaxies in the field of redshift range Ultra Steep Spectrum (USS) radio sources selected from…