activity
19962008
most citedThe Hamburg/ESO R-process Enhanced Star survey (HERES) II. Spectroscopic analysis of the survey sample

504 citations · 1.5k across the 25 of their papers we have counts for

collaborators

25 papers

astro-ph2008★ 141 cited

The stellar content of the Hamburg/ESO survey. V. The metallicity distribution function of the Galactic halo

T. Schoerck, N. Christlieb, J. G. Cohen +22

We determine the metallicity distribution function (MDF) of the Galactic halo by means of a sample of 1638 metal-poor stars selected from the Hamburg/ESO objective-prism survey (HE…

astro-ph2006★ 75 cited

Broadband UBVRI Photometry of Horizontal-Branch and Metal-Poor Candidates from the HK and Hamburg/ESO Surveys. I

Timothy C. Beers, Chris Flynn, Silvia Rossi +17

We report broadband UBV and/or BVRI CCD photometry for a total of 1857 stars in the thick-disk and halo populations of the Galaxy. The majority of our targets were selected as cand…

astro-ph2006★ 126 cited

Carbon Stars in the Hamburg/ESO Survey: Abundances

Judith G. Cohen, Andrew McWilliam, Stephen Shectman +6

We have carried out a detailed abundance analysis for a sample of 16 carbon stars found among candidate extremely metal-poor (EMP) stars from the Hamburg/ESO Survey. We find that t…

astro-ph2005★ 94 cited

The Frequency of Carbon Stars Among Extremely Metal-Poor Stars

Judith G. Cohen, Stephen Shectman, Ian Thompson +6

We demonstrate that there are systematic scale errors in the [Fe/H] values determined by the Hamburg/ESO Survey (and by inference by the HK Survey in the past) for certain extremel…

astro-ph2005

The Frequency of Carbon Rich Stars Among Extremely Metal Poor Stars

Judith G. Cohen, Stephen Shectman, Ian Thompson +6

We demonstrate that there are systematic scale errors in the [Fe/H] values determined by the Hamburg/ESO Survey (and by the HK Survey by inference) for certain extremely metal poor…

astro-ph2005★ 504 cited

The Hamburg/ESO R-process Enhanced Star survey (HERES) II. Spectroscopic analysis of the survey sample

P. S. Barklem, N. Christlieb, T. C. Beers +7

We present the results of analysis of ``snapshot'' spectra of 253 metal-poor halo stars -3.8 < [Fe/H] < -1.5 obtained in the HERES survey. The spectra are analysed using an automat…