132 citations · 271 across the 3 of their papers we have counts for
3 papers
High-Resolution Spectroscopic Study of Extremely Metal-Poor Star Candidates from the SkyMapper Survey
Heather. R. Jacobson, Stefan Keller, Anna Frebel +13
The SkyMapper Southern Sky Survey is carrying out a search for the most metal-poor stars in the Galaxy. It identifies candidates by way of its unique filter set that allows for est…
The Aquarius Co-Moving Group is Not a Disrupted Classical Globular Cluster
Andrew R. Casey, Stefan Keller, Alan Alves-Brito +8
We present a detailed analysis of high-resolution, high S/N spectra for 5 Aquarius stream stars observed with the MIKE spectrograph on the Magellan Clay telescope. Our sample repre…
Deriving Stellar Effective Temperatures of Metal-Poor Stars with the Excitation Potential Method
Anna Frebel, Andrew R. Casey, Heather R. Jacobson +1
It is well established that stellar effective temperatures determined from photometry and spectroscopy yield systematically different results. We describe a new, simple method to c…