VizieR Online Data Catalog: Abundances of metal-poor stars from SkyMapper (Yong+, 2021)
Abstract
We present the high-resolution spectroscopic analysis for a sample of 150 stars selected from SkyMapper photometry that have been vetted using intermediate-resolution spectroscopy via spectrographs like WiFeS, MIKE, HIRES, FEROS. We further proceed to data extraction with their respectives data reduction pipelines (see section 2 Selection, Observations, and Data Reduction).
Here, the table1.dat shows the programme stars and observing details. As first results, the table2.dat exhibits the list of optical lines observed for each stars, the linked ionized species and the measured equivalent width used to computed element abundances. Secondly, as explained in the section 3 Analysis, we use model atmospheres NEWODF grid of ATLAS9 models and LTE stellar line analysis programme MOOG in order to fit observed and synthetic spectra which leads us to element abundances values. The table3.dat resume the model atmosphere parameters computed for each program stars. Hereafter, the table5.dat expose the calculated carbon abundances, the table7.dat and table8.dat reveal the chemical abundances of all found elements for each stars. To complete the three last tables, the table9.dat resumes details on total abundance errors. Finally, the table sup.dat summarizes the stellar parameters, stars metal-deficient classfications and all the chemical abundances precisely computed for the 150 metal-poor Galactic stars of our study. (8 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- July 2024
- Bibcode:
- 2024yCat..75074102Y
- Keywords:
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- Stars: metal-deficient;
- Stars: carbon;
- Space observations;
- Optical;
- Photometry;
- Radial velocities;
- Spectroscopy;
- Equivalent widths;
- Effective temperatures;
- Models: atmosphere;
- Abundances;
- Abundances: [Fe/H]