R
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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Journal ArticleDOI
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.
Journal ArticleDOI
New constraints on the chemical evolution of the solar neighbourhood and galactic disc(s) - improved astrophysical parameters for the Geneva-Copenhagen Survey
Luca Casagrande,Ralph Schönrich,Martin Asplund,Santi Cassisi,I. Ramirez,Jorge Melendez,Thomas Bensby,Sofia Feltzing +7 more
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.
Journal ArticleDOI
Chemical evolution with radial mixing
Ralph Schönrich,James Binney +1 more
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.
Journal ArticleDOI
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,Franco D. Albareti,Carlos Allende Prieto,Carlos Allende Prieto,Andres Almeida,Friedrich Anders,Scott F. Anderson,Brett H. Andrews,Alfonso Aragón-Salamanca,Maria Argudo-Fernández,Maria Argudo-Fernández,Eric Armengaud,Éric Aubourg,Vladimir Avila-Reese,Carles Badenes,Stephen Bailey,Beatriz Barbuy,Kat Barger,Jorge K. Barrera-Ballesteros,Curtis Bartosz,Sarbani Basu,Dominic Bates,Giuseppina Battaglia,Giuseppina Battaglia,Falk Baumgarten,Falk Baumgarten,Julien Baur,Julian E. Bautista,Timothy C. Beers,Francesco Belfiore,Matthew A. Bershady,Sara Bertran de Lis,Sara Bertran de Lis,Jonathan C. Bird,Dmitry Bizyaev,Dmitry Bizyaev,Dmitry Bizyaev,Guillermo A. Blanc,Guillermo A. Blanc,Michael R. Blanton,Michael Blomqvist,Adam S. Bolton,Jura Borissova,Jura Borissova,Jo Bovy,W. N. Brandt,Jonathan Brinkmann,Joel R. Brownstein,Kevin Bundy,Etienne Burtin,Nicolás G. Busca,Hugo Orlando Camacho Chavez,M. Cano Díaz,Michele Cappellari,Ricardo Carrera,Ricardo Carrera,Yanping Chen,Brian Cherinka,Edmond Cheung,Cristina Chiappini,Drew Chojnowski,Chia-Hsun Chuang,Haeun Chung,Rafael Fernando Cirolini,Nicolas Clerc,Roger E. Cohen,Julia M. Comerford,Johan Comparat,Johan Comparat,Janaina Correa do Nascimento,M. C. Cousinou,Kevin R. Covey,Jeffrey D. Crane,Rupert A. C. Croft,Katia Cunha,Jeremy Darling,Jr. James W. Davidson,Kyle S. Dawson,Luiz N. da Costa,Gabriele da Silva Ilha,Alice Deconto Machado,Timothée Delubac,Nathan De Lee,Nathan De Lee,Axel de la Macorra,Sylvain de la Torre,Aleksandar M. Diamond-Stanic,John Donor,J. J. Downes,J. J. Downes,Niv Drory,Cheng Du,Hélion du Mas des Bourboux,Tom Dwelly,Garrett Ebelke,Arthur Eigenbrot,Daniel J. Eisenstein,Yvonne Elsworth,Yvonne Elsworth,Eric Emsellem,Eric Emsellem,Michael Eracleous,Stephanie Escoffier,Michael L. Evans,Jesús Falcón-Barroso,Jesús Falcón-Barroso,Xiaohui Fan,Ginevra Favole,Ginevra Favole,E. Fernández-Alvar,José G. Fernández-Trincado,Diane Feuillet,Scott W. Fleming,Andreu Font-Ribera,Andreu Font-Ribera,Gordon Freischlad,Gordon Freischlad,Peter M. Frinchaboy,Hai Fu,Yang Gao,Rafael A. García,Rafael Garcia-Dias,Rafael Garcia-Dias,D. A. García-Hernández,D. A. García-Hernández,Ana E. García Pérez,Ana E. García Pérez,Patrick Gaulme,Patrick Gaulme,Junqiang Ge,Douglas Geisler,Bruce Gillespie,Hector Gil Marin,Hector Gil Marin,Léo Girardi,Daniel Goddard,Yilen Gómez Maqueo Chew,Violeta Gonzalez-Perez,Kathleen Grabowski,Kathleen Grabowski,Paul J. Green,Catherine J. Grier,Thomas Grier,Thomas Grier,Hong Guo,Julien Guy,Alex Hagen,Matthew Hall,Paul Harding,R. E. Harley,Sten Hasselquist,Suzanne L. Hawley,Christian R. Hayes,Fred Hearty,Saskia Hekker,Hector Hernandez Toledo,Shirley Ho,Shirley Ho,David W. Hogg,Kelly Holley-Bockelmann,Jon A. Holtzman,Parker H. Holzer,Jian Hu,Jian Hu,Daniel Huber,Daniel Huber,Daniel Huber,Timothy A. Hutchinson,Ho Seong Hwang,Hector Ibarra-Medel,Inese I. Ivans,KeShawn Ivory,KeShawn Ivory,Kurt P. Jaehnig,Trey W. Jensen,Jennifer A. Johnson,Amy Jones,Eric Jullo,Thomas Kallinger,Karen Kinemuchi,Karen Kinemuchi,D. Kirkby,Mark A. Klaene,Jean-Paul Kneib,Juna A. Kollmeier,Ivan Lacerna,Rebecca Lane,Dustin Lang,Pierre Laurent,David R. Law,Alexie Leauthaud,Jean-Marc Le Goff,Chen Li,Cheng Li,Cheng Li,Niu Li,Ran Li,Fu-Heng Liang,Yu Liang,Marcos Lima,Lihwai Lin,Lin Lin,Yen-Ting Lin,Chao Liu,Dan Long,Sara Lucatello,Nicholas MacDonald,Chelsea L. MacLeod,J. Ted Mackereth,Suvrath Mahadevan,Marcio A. G. Maia,Roberto Maiolino,Steven R. Majewski,Olena Malanushenko,Olena Malanushenko,Viktor Malanushenko,Viktor Malanushenko,Nícolas Dullius Mallmann,Arturo Manchado,Arturo Manchado,Claudia Maraston,Rui Marques-Chaves,Rui Marques-Chaves,Inma Martinez Valpuesta,Inma Martinez Valpuesta,Karen L. Masters,Savita Mathur,Ian D. McGreer,Andrea Merloni,Michael R. Merrifield,Szabolcs Mészáros,Andres Meza,Andrea Miglio,Ivan Minchev,Karan Molaverdikhani,Karan Molaverdikhani,Antonio D. Montero-Dorta,Benoit Mosser,Demitri Muna,Adam D. Myers,P. Nair,Kirpal Nandra,Melissa Ness,Jeffrey A. Newman,Robert C. Nichol,D. L. Nidever,Christian Nitschelm,Julia E. O'Connell,Audrey Oravetz,Audrey Oravetz,Daniel Oravetz,Daniel Oravetz,Zachary J. Pace,Nelson Padilla,Nathalie Palanque-Delabrouille,Kaike Pan,Kaike Pan,John K. Parejko,I. Paris,Changbom Park,John A. Peacock,Sebastien Peirani,Sebastien Peirani,Marcos Pellejero-Ibanez,Marcos Pellejero-Ibanez,Samantha J. Penny,Will J. Percival,Jeffrey W. Percival,Ismael Perez-Fournon,Ismael Perez-Fournon,Patrick Petitjean,Matthew M. Pieri,Marc H. Pinsonneault,Alice Pisani,Alice Pisani,Francisco Prada,Francisco Prada,Abhishek Prakash,Natalie Price-Jones,M. Jordan Raddick,Mubdi Rahman,Anand Raichoor,Sandro Barboza Rembold,A. M. Reyna,James Rich,Hannah Richstein,J. Ridl,Rogemar A. Riffel,Rogério Riffel,Hans-Walter Rix,Annie C. Robin,Constance M. Rockosi,Sergio Rodríguez-Torres,T. S. Rodrigues,T. S. Rodrigues,Natalie A. Roe,A. Roman Lopes,Carlos Román-Zúñiga,Ashley J. Ross,Graziano Rossi,John J. Ruan,Rossana Ruggeri,Jessie C. Runnoe,Salvador Salazar-Albornoz,Mara Salvato,Sebastián F. Sánchez,Ariel G. Sánchez,José R. Sánchez-Gallego,Basilio X. Santiago,Ricardo P. Schiavon,J. S. Schimoia,Edward F. Schlafly,David J. Schlegel,Donald P. Schneider,Ralph Schönrich,Mathias Schultheis,Axel Schwope,Hee-Jong Seo,Aldo Serenelli,Branimir Sesar,Zhengyi Shao,Matthew Shetrone,Michael Shull,Victor Silva Aguirre,Michael F. Skrutskie,Anže Slosar,Michael J. Smith,Verne V. Smith,Jennifer Sobeck,Garrett Somers,Garrett Somers,Diogo Souto,David V. Stark,Keivan G. Stassun,Matthias Steinmetz,Dennis Stello,Dennis Stello,Thaisa Storchi Bergmann,Michael A. Strauss,Alina Streblyanska,Alina Streblyanska,Guy S. Stringfellow,Genaro Suárez,Jing Sun,Manuchehr Taghizadeh-Popp,Baitian Tang,Charling Tao,Charling Tao,Jamie Tayar,Mita Tembe,Daniel Thomas,Jeremy L. Tinker,Rita Tojeiro,Christy Tremonti,Nicholas W. Troup,Jonathan R. Trump,Eduardo Unda-Sanzana,Octavio Valenzuela,Remco C. E. van den Bosch,Mariana Vargas-Magaña,Jose Alberto Vazquez,Sandro Villanova,M. Vivek,Nicole P. Vogt,David A. Wake,David A. Wake,Rene A. M. Walterbos,Yuting Wang,Yuting Wang,Enci Wang,Benjamin A. Weaver,Anne-Marie Weijmans,David H. Weinberg,Kyle B. Westfall,D. G. Whelan,Eric M. Wilcots,Vivienne Wild,Rob A. Williams,John Wilson,W. M. Wood-Vasey,Dominika Wylezalek,Ting Xiao,Renbin Yan,Meng Yang,Jason E. Ybarra,Jason E. Ybarra,Christophe Yèche,Fang-Ting Yuan,Nadia L. Zakamska,Olga Zamora,Olga Zamora,Gail Zasowski,Kai Zhang,Cheng Zhao,Gong-Bo Zhao,Gong-Bo Zhao,Zheng Zheng,Zhimin Zhou,Guangtun Zhu,Joel C. Zinn,Hu Zou +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).
Journal ArticleDOI
Origin and structure of the Galactic disc(s)
Ralph Schönrich,James Binney +1 more
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.