E
E. Walker
Researcher at University of Virginia
Publications - 7
Citations - 2605
E. Walker is an academic researcher from University of Virginia. The author has contributed to research in topics: Spectrograph & Observatory. The author has an hindex of 6, co-authored 7 publications receiving 2259 citations.
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Journal ArticleDOI
The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
Steven R. Majewski,Ricardo P. Schiavon,Peter M. Frinchaboy,Carlos Allende Prieto,Carlos Allende Prieto,Robert H. Barkhouser,Dmitry Bizyaev,Dmitry Bizyaev,Basil Blank,Sophia Brunner,Adam Burton,Ricardo Carrera,Ricardo Carrera,S. Drew Chojnowski,S. Drew Chojnowski,Katia Cunha,Courtney R. Epstein,Greg Fitzgerald,Ana E. García Pérez,Ana E. García Pérez,Fred Hearty,Fred Hearty,Chuck Henderson,Jon A. Holtzman,Jennifer A. Johnson,Charles R. Lam,James E. Lawler,Paul Maseman,Szabolcs Mészáros,Szabolcs Mészáros,Szabolcs Mészáros,Matthew J. Nelson,Duy Coung Nguyen,David L. Nidever,David L. Nidever,Marc H. Pinsonneault,Matthew Shetrone,Stephen A. Smee,Verne V. Smith,T. Stolberg,Michael F. Skrutskie,E. Walker,John C. Wilson,Gail Zasowski,Gail Zasowski,Friedrich Anders,Sarbani Basu,Stephane Beland,Michael R. Blanton,Jo Bovy,Jo Bovy,Joel R. Brownstein,Joleen K. Carlberg,Joleen K. Carlberg,William J. Chaplin,William J. Chaplin,Cristina Chiappini,Daniel J. Eisenstein,Yvonne Elsworth,Diane Feuillet,Scott W. Fleming,Scott W. Fleming,Jessica Galbraith-Frew,Rafael A. García,D. Anibal García-Hernández,D. Anibal García-Hernández,Bruce Gillespie,Léo Girardi,James E. Gunn,Sten Hasselquist,Sten Hasselquist,Michael R. Hayden,Saskia Hekker,Saskia Hekker,Inese I. Ivans,Karen Kinemuchi,Mark A. Klaene,Suvrath Mahadevan,Savita Mathur,Benoit Mosser,Demitri Muna,Jeffrey A. Munn,Robert C. Nichol,Robert W. O'Connell,John K. Parejko,Annie C. Robin,H. J. Rocha-Pinto,M. Schultheis,Aldo Serenelli,Neville Shane,Victor Silva Aguirre,Jennifer Sobeck,Benjamin A. Thompson,Nicholas W. Troup,David H. Weinberg,Olga Zamora,Olga Zamora +96 more
TL;DR: In this article, the Hungarian National Research, Development and Innovation Office (K-119517) and Hungarian National Science Foundation (KNFI) have proposed a method to detect the presence of asteroids in Earth's magnetic field.
Journal ArticleDOI
The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
Steven R. Majewski,Ricardo P. Schiavon,Peter M. Frinchaboy,Carlos Allende Prieto,Robert H. Barkhouser,Dmitry Bizyaev,Basil Blank,Sophia Brunner,Adam Burton,Ricardo Carrera,S. Drew Chojnowski,Katia Cunha,Courtney R. Epstein,Greg Fitzgerald,Ana G. Pérez,Fred R. Hearty,Chuck Henderson,Jon A. Holtzman,Jennifer A. Johnson,Charles R. Lam,James E. Lawler,Paul Maseman,Szabolcs Mészáros,Matthew J. Nelson,Duy Coung Nguyen,David L. Nidever,Marc H. Pinsonneault,Matthew Shetrone,Stephen A. Smee,Verne V. Smith,T. Stolberg,Michael F. Skrutskie,E. Walker,John C. Wilson,Gail Zasowski,Friedrich Anders,Sarbani Basu,Stephane Beland,Michael R. Blanton,Jo Bovy,Joel R. Brownstein,Joleen K. Carlberg,William J. Chaplin,Cristina Chiappini,Daniel J. Eisenstein,Yvonne Elsworth,Diane Feuillet,Scott W. Fleming,Jessica Galbraith-Frew,Rafael A. García,D. Anibal García-Hernández,Bruce Gillespie,Léo Girardi,James E. Gunn,Sten Hasselquist,Michael R. Hayden,Saskia Hekker,Inese I. Ivans,Karen Kinemuchi,Mark A. Klaene,Suvrath Mahadevan,Savita Mathur,Benoit Mosser,Demitri Muna,Jeffrey A. Munn,Robert C. Nichol,Robert W. O'Connell,Annie C. Robin,Helio J. Rocha-Pinto,M. Schultheis,Aldo Serenelli,Neville Shane,Victor Silva Aguirre,Jennifer Sobeck,Benjamin A. Thompson,Nicholas W. Troup,David H. Weinberg,Olga Zamora +77 more
TL;DR: The Apache Point Observatory Galactic Evolution Experiment (APOGEE) as discussed by the authors collected a half million high resolution (R~22,500), high S/N (>100), infrared (1.51-1.70 microns) spectra for 146,000 stars, with time series information via repeat visits to most of these stars.
Proceedings ArticleDOI
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph
John C. Wilson,Fred Hearty,Michael F. Skrutskie,Steven R. Majewski,Ricardo P. Schiavon,Daniel J. Eisenstein,James E. Gunn,Basil Blank,Chuck Henderson,Stephen A. Smee,Robert H. Barkhouser,Al Harding,Greg Fitzgerald,T. Stolberg,Jim Arns,Matthew J. Nelson,Sophia Brunner,Adam Burton,E. Walker,Charles R. Lam,Paul Maseman,Jim Barr,F. Leger,Larry N. Carey,Nick MacDonald,T. Horne,Erick T. Young,George H. Rieke,Marcia J. Rieke,Thomas P. O'Brien,Steve Hope,John Krakula,Jeff Crane,Bo Zhao,Michael A. Carr,Craig Harrison,R. Stoll,Mary Ann Vernieri,Jon A. Holtzman,Matthew Shetrone,Carlos Allende-Prieto,Jennifer A. Johnson,Peter M. Frinchaboy,Gail Zasowski,Dmitry Bizyaev,Bruce Gillespie,David H. Weinberg +46 more
TL;DR: The Apache Point Observatory Galactic Evolution Experiment (APOGEE) as mentioned in this paper uses a dedicated 300-fiber, narrow-band (1.5-1.7 micron) near-infrared spectrograph to survey approximately 100,000 giant stars across the Milky Way.
Journal ArticleDOI
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) Spectrographs
John C. Wilson,Frederick R. Hearty,Mike Skrutskie,Steve Majewski,Jon A. Holtzman,Daniel J. Eisenstein,James E. Gunn,Basil Blank,Calen B. Henderson,Stephen A. Smee,Matthew J. Nelson,David L. Nidever,James A. Arns,Robert H. Barkhouser,J. Barr,Stephane Beland,Matthew A. Bershady,Michael R. Blanton,Sophia Brunner,Andrew J. Burton,Larry N. Carey,Michael A. Carr,J. P. Colque,Jeff Crane,G. J. Damke,G. J. Damke,James W. Davidson,Janice D. R. Dean,F. Di Mille,K. W. Don,Garrett Ebelke,Michael L. Evans,Greg Fitzgerald,Bruce Gillespie,Matthew Hall,Al Harding,Paul Harding,Rosemarie W. Hammond,D. Hancock,C. Harrison,Stephen C. Hope,T. Horne,J. Karakla,Charles R. Lam,F. Leger,Nicholas MacDonald,Paul Maseman,J. Matsunari,S. Melton,T. Mitcheltree,Thomas P. O'Brien,Robert W. O'Connell,Alim Y. Patten,W. Richardson,George H. Rieke,Marcia J. Rieke,Alexandre Roman-Lopes,Ricardo P. Schiavon,Jennifer Sobeck,T. Stolberg,R. Stoll,Mita Tembe,J. D. Trujillo,A. Uomoto,M. Vernieri,E. Walker,David H. Weinberg,Erick T. Young,B. Anthony-Brumfield,Dmitry Bizyaev,Dmitry Bizyaev,Ben Breslauer,N. De Lee,N. De Lee,J. Downey,Samuel Halverson,Joseph Huehnerhoff,Mark A. Klaene,E. Leon,Dan Long,Suvrath Mahadevan,Elena Malanushenko,D. C. Nguyen,Russell Owen,José R. Sánchez-Gallego,Conor Sayres,N. Shane,Stephen A. Shectman,Matthew Shetrone,D. Skinner,Fritz Stauffer,Bo Zhao +91 more
TL;DR: The Apache Point Observatory Galactic Evolution Experiment (APOGEE) as mentioned in this paper is a survey of ~ 10^5 red giant stars that systematically sampled all Milky Way populations (bulge, disk, and halo) to study the Galaxy's chemical and kinematical history.
Proceedings ArticleDOI
Performance of the Apache Point Observatory Galactic Evolution Experiment (APOGEE) high-resolution near-infrared multi-object fiber spectrograph
John C. Wilson,Frederick R. Hearty,Mike Skrutskie,Steven R. Majewski,Ricardo P. Schiavon,Daniel J. Eisenstein,James E. Gunn,Jon A. Holtzman,David L. Nidever,Bruce Gillespie,David H. Weinberg,Basil Blank,Chuck Henderson,Stephen A. Smee,Robert H. Barkhouser,Albert Harding,Stephen C. Hope,Greg Fitzgerald,T. Stolberg,Jim Arns,Matthew J. Nelson,Sophia Brunner,Adam Burton,E. Walker,Charles R. Lam,Paul Maseman,J. Barr,F. Leger,Larry N. Carey,Nicholas MacDonald,Garrett Ebelke,Stephane Beland,T. Horne,Erick T. Young,George H. Rieke,Marcia J. Rieke,Thomas P. O'Brien,Jeffrey D. Crane,Michael A. Carr,C. Harrison,R. Stoll,M. Vernieri,Matthew Shetrone,Carlos Allende-Prieto,J. A. Johnson,Peter M. Frinchaboy,Gail Zasowski,A. E. García Pérez,D. V. Bizyaev,Katia Cunha,Verne V. Smith,Sz. Meszaros,Bo Zhao,Michael R. Hayden,S. D. Chojnowski,Brett H. Andrews,Craig P. Loomis,Russell Owen,Mark A. Klaene,J. Brinkmann,Fritz Stauffer,Dan Long,Wendell P. Jordan,Diana Holder,Frances Cope,Tracy Naugle,B. Pfaffenberger,David J. Schlegel,M. R. Blanton,Demitri Muna,Benjamin A. Weaver,S. A. Snedden,Kaike Pan,Howard Brewington,Elena Malanushenko,Viktor Malanushenko,A. Simmons,Daniel Oravetz,Suvrath Mahadevan,Samuel Halverson +79 more
TL;DR: The Apache Point Observatory Galactic Evolution Experiment (APOGEE) uses a dedicated 300-fiber, narrow-band near-infrared spectrograph to survey approximately 100,000 giant stars across the Milky Way.