STELLAR ABUNDANCES IN THE SOLAR NEIGHBORHOOD: THE HYPATIA CATALOG

By Natalie R. Hinkel, Francis Timmes, P. Young, M. Pagano, M. Turnbull. 2014

206 citations recorded by the source corpus.

We compile spectroscopic abundance data from 84 literature sources for 50 elements across 3058 stars in the solar neighborhood, within 150 pc of the Sun, to produce the Hypatia Catalog. We evaluate the variability of the spread in abundance measurements reported for the same star by different surveys. We also explore the likely association of the star within the Galactic disk, the corresponding observation and abundance determination methods for all catalogs in Hypatia, the influence of specific catalogs on the overall abundance trends, and the effect of normalizing all abundances to the same solar scale. The resulting stellar abundance determinations in the Hypatia Catalog are analyzed only for thin-disk stars with observations that are consistent between literature sources. As a result of our large data set, we find that the stars in the solar neighborhood may reveal an asymmetric abundance distribution, such that a [Fe/H]-rich group near the midplane is deficient in Mg, Si, S, Ca, Sc ii, Cr ii, and Ni as compared to stars farther from the plane. The Hypatia Catalog has a wide number of applications, including exoplanet hosts, thick- and thin-disk stars, and stars with different kinematic properties.

Subfields: Astronomy and Astrophysics, Education, Instrumentation

View Paper: https://www.semanticscholar.org/paper/9f36ccfd646f55452f9095380a7973b3f204b659

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In Astronomy and Astrophysics

1. Hans-Walter Rix
2. A. Mann
3. E. Gaidos
4. M. Ness
5. David W. Hogg
6. Jo Bovy
7. K. von Braun
8. G. Feiden

In Education

1. Hans-Walter Rix
2. G. Zasowski
3. G. Feiden
4. David W. Hogg
5. A. Mann
6. E. Gaidos
7. Jo Bovy
8. I. Minchev

In Instrumentation

1. Hans-Walter Rix
2. M. Ness
3. David W. Hogg
4. A. Mann
5. G. Zasowski
6. E. Gaidos
7. G. Feiden
8. T. Boyajian

Citations in the corpus

• The PASTEL catalogue: 2016 version (2016, background): “…of PASTEL to provide them, but we mention here several large compilations of abundances that can be cross-matched to PASTEL: – the Hypatia Catalog (Hinkel et al. 2014) made of 84 literature sources for 50 elements across 3058 stars in the solar neighbourhood within 150 pc of the Sun; – chemical…”
• THE CANNON: A DATA-DRIVEN APPROACH TO STELLAR LABEL DETERMINATION (2015, result): “As a consequence, it happens that different research groups obtain discrepant results for same stars, resulting from analysis across different wavelength regions and different input assumptions and methods used (e.g., Hinkel et al. 2014; Jofré et al. 2014; Allende Prieto et al. 1999).”
• HOW TO CONSTRAIN YOUR M DWARF: MEASURING EFFECTIVE TEMPERATURE, BOLOMETRIC LUMINOSITY, MASS, AND RADIUS (2015, background): “This might be due to overlap in the calibration sample of the aforementioned studies, or underestimated errors in the FGK star metallicities (Torres et al. 2012; Hinkel et al. 2014).”