activity
20032026
most citedHE 0557-4840 - Ultra-Metal-Poor and Carbon-Rich

241 citations · 934 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.SR2026

Detection of circumstellar disks around nearby young brown dwarf candidates

N. Phan-Bao, M. S. Bessell, E. L. Martín

It is important to detect and study circumstellar disks around late-M and brown dwarfs of nearby young associations to understand how these very low-mass objects form and how rocky…

astro-ph.GA2025★ 3 cited

The Rise of the Milky Way Disk through EMP Stars

B. Lowe, T. Nordlander, L. Casagrande +6

We present a chemo-dynamical study conducted with 2dFAAOmega of Gaia DR3 non-variable candidate metal-poor stars that lie in the direction of the Galactic plane. Our…

astro-ph.SR2018★ 58 cited

SkyMapper stellar parameters for Galactic Archaeology on a grand-scale

L. Casagrande, C. Wolf, A. D. Mackey +3

The SkyMapper photometric surveys provides uvgriz photometry for several millions sources in the Southern sky. We use DR1.1 to explore the quality of its photometry, and develop a…

astro-ph.SR2014★ 73 cited

The Gaia-ESO Survey: the most metal-poor stars in the Galactic bulge

L. Howes, M. Asplund, A. R. Casey +39

We present the first results of the EMBLA survey (Extremely Metal-poor BuLge stars with AAOmega), aimed at finding metal-poor stars in the Milky Way bulge, where the oldest stars s…

astro-ph.SR2014★ 102 cited

Exploring the Origin of Lithium, Carbon, Strontium and Barium with four new Ultra Metal-Poor Stars

T. Hansen, C. J. Hansen, N. Christlieb +8

We present an elemental abundance analysis for four newly discovered ultra metal-poor stars from the Hamburg/ESO survey, with . Based on high-resolution, hig…

astro-ph.GA2012★ 78 cited

The Most Metal-Poor Stars. I. Discovery, Data, and Atmospheric Parameters

John E. Norris, M. S. Bessell, David Yong +7

We report the discovery of 34 stars in the Hamburg/ESO Survey for metal-poor stars and the Sloan Digital Sky Survey that have [Fe/H] < -3.0. Their median and minimum abundances are…