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Ralph Schönrich

Researcher at University College London

Publications -  75
Citations -  8751

Ralph Schönrich is an academic researcher from University College London. The author has contributed to research in topics: Stars & Galaxy. The author has an hindex of 40, co-authored 74 publications receiving 7909 citations. Previous affiliations of Ralph Schönrich include University of Oxford & Ohio State University.

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Local kinematics and the local standard of rest

TL;DR: In this article, the stellar kinematics of the solar neighbourhood in terms of the velocity υ� of the Sun with respect to the local standard of rest were examined. But the results were not robust to the metallicity gradient in the disc, which introduces a correlation between the colour of a group of stars and the radial gradients of its properties.
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New constraints on the chemical evolution of the solar neighbourhood and galactic disc(s) - improved astrophysical parameters for the Geneva-Copenhagen Survey

TL;DR: In this article, the Geneva-Copenhagen survey was used for a re-analysis of the spectral properties of the stars in the solar neighborhood and the results showed that the stars are on average 100 K hotter and 0.1 dex more metal rich, which shifted the peak of the metallicity distribution function around the solar value.
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Chemical evolution with radial mixing

TL;DR: In this article, a model of the chemical evolution of our Galaxy is extended to include radial migration of stars and flow of gas through the disc, and the model provides a good fit to the distribution of GCS stars in the age-metallicity plane, although this plane was not used in the fitting process.
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The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory

Franco D. Albareti, +400 more
TL;DR: Data Release 13 (DR13) as discussed by the authors provides the first 1390 spatially resolved integral field unit observations of nearby galaxies from the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS).
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Origin and structure of the Galactic disc(s)

TL;DR: In this paper, the chemical and dynamical structure in the solar neighbourhood of a model galaxy is examined, which is the endpoint of a simulation of the chemical evolution of the Milky Way in the presence of radial mixing of stars and gas.