Zobrazeno 1 - 10
of 73
pro vyhledávání: '"David Sprayberry"'
Autor:
Timothy N. Miller, Peter Doel, Gaston Gutierrez, Robert Besuner, David Brooks, Giuseppe Gallo, Henry Heetderks, Patrick Jelinsky, Stephen M. Kent, Michael Lampton, Michael E. Levi, Ming Liang, Aaron Meisner, Michael J. Sholl, Joseph Harry Silber, David Sprayberry, Jessica Nicole Aguilar, Axel de la Macorra, Daniel Eisenstein, Kevin Fanning, Andreu Font-Ribera, Enrique Gaztañaga, Satya Gontcho A Gontcho, Klaus Honscheid, Jorge Jimenez, Dick Joyce, Robert Kehoe, Theodore Kisner, Anthony Kremin, Martin Landriau, Laurent Le Guillou, Christophe Magneville, Paul Martini, Ramon Miquel, John Moustakas, Jundan Nie, Will Percival, Claire Poppett, Francisco Prada, Graziano Rossi, David Schlegel, Michael Schubnell, Hee-Jong Seo, Ray Sharples, Gregory Tarlé, Mariana Vargas-Magaña, Zhimin Zhou, the DESI Collaboration
Publikováno v:
The Astronomical Journal, Vol 168, Iss 2, p 95 (2024)
The Dark Energy Spectroscopic Instrument (DESI) is currently measuring the spectra of 40 million galaxies and quasars, the largest such survey ever made to probe the nature of cosmological dark energy. The 4 m Mayall telescope at Kitt Peak National O
Externí odkaz:
https://doaj.org/article/b3fbf7400914497ea1f219a4974ec686
Autor:
Linhua Jiang, Zhiwei Pan, Jessica Nicole Aguilar, Steven Ahlen, Robert Blum, David Brooks, Todd Claybaugh, Axel de la Macorra, Arjun Dey, Peter Doel, Kevin Fanning, Simone Ferraro, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Klaus Honscheid, Stephanie Juneau, Martin Landriau, Laurent Le Guillou, Michael Levi, Marc Manera, Ramon Miquel, John Moustakas, Eva-Maria Mueller, Andrea Muñoz-Gutiérrez, Adam Myers, Jundan Nie, Gustavo Niz, Claire Poppett, Francisco Prada, Mehdi Rezaie, Graziano Rossi, Eusebio Sanchez, Edward Schlafly, Michael Schubnell, Hee-Jong Seo, David Sprayberry, Gregory Tarlé, Benjamin Alan Weaver, Hu Zou, The DESI Collaboration
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 120 (2024)
We present strong constraints on the spacetime variation of the fine-structure constant α using the Dark Energy Spectroscopic Instrument (DESI). In this pilot work, we utilize ∼110,000 galaxies with strong and narrow [O iii ] λ λ 4959, 5007 emis
Externí odkaz:
https://doaj.org/article/65c3ca715f49425e9543e34b7872d607
Autor:
Joseph Harry Silber, Parker Fagrelius, Kevin Fanning, Michael Schubnell, Jessica Nicole Aguilar, Steven Ahlen, Jon Ameel, Otger Ballester, Charles Baltay, Chris Bebek, Dominic Benton Beard, Robert Besuner, Laia Cardiel-Sas, Ricard Casas, Francisco Javier Castander, Todd Claybaugh, Carl Dobson, Yutong Duan, Patrick Dunlop, Jerry Edelstein, William T. Emmet, Ann Elliott, Matthew Evatt, Irena Gershkovich, Julien Guy, Stu Harris, Henry Heetderks, Ian Heetderks, Klaus Honscheid, Jose Maria Illa, Patrick Jelinsky, Sharon R. Jelinsky, Jorge Jimenez, Armin Karcher, Stephen Kent, David Kirkby, Jean-Paul Kneib, Andrew Lambert, Mike Lampton, Daniela Leitner, Michael Levi, Jeremy McCauley, Aaron Meisner, Timothy N. Miller, Ramon Miquel, Juliá Mundet, Claire Poppett, David Rabinowitz, Kevin Reil, David Roman, David Schlegel, Santiago Serrano, William Van Shourt, David Sprayberry, Gregory Tarlé, Suk Sien Tie, Curtis Weaverdyck, Kai Zhang, Marco Azzaro, Stephen Bailey, Santiago Becerril, Tami Blackwell, Mohamed Bouri, David Brooks, Elizabeth Buckley-Geer, Jose Peñate Castro, Mark Derwent, Arjun Dey, Govinda Dhungana, Peter Doel, Daniel J. Eisenstein, Nasib Fahim, Juan Garcia-Bellido, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Philipp Hörler, Robert Kehoe, Theodore Kisner, Anthony Kremin, Luzius Kronig, Martin Landriau, Laurent Le Guillou, Paul Martini, John Moustakas, Nathalie Palanque-Delabrouille, Xiyan Peng, Will Percival, Francisco Prada, Carlos Allende Prieto, Guillermo Gonzalez de Rivera, Eusebio Sanchez, Justo Sanchez, Ray Sharples, Marcelle Soares-Santos, Edward Schlafly, Benjamin Alan Weaver, Zhimin Zhou, Yaling Zhu, Hu Zou, (DESI Collaboration)
Publikováno v:
The Astronomical Journal, Vol 165, Iss 1, p 9 (2022)
A system of 5020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically retarget their optical fibers every 10–20 minutes, each to a precision of several microns, with a
Externí odkaz:
https://doaj.org/article/ec5f6d0d08344650ae772c420efc6552
Publikováno v:
Bulletin of the AAS.
Autor:
Joseph Harry Silber, Parker Fagrelius, Kevin Fanning, Michael Schubnell, Jessica Nicole Aguilar, Steven Ahlen, Jon Ameel, Otger Ballester, Charles Baltay, Chris Bebek, Dominic Benton Beard, Robert Besuner, Laia Cardiel-Sas, Ricard Casas, Francisco Javier Castander, Todd Claybaugh, Carl Dobson, Yutong Duan, Patrick Dunlop, Jerry Edelstein, William T. Emmet, Ann Elliott, Matthew Evatt, Irena Gershkovich, Julien Guy, Stu Harris, Henry Heetderks, Ian Heetderks, Klaus Honscheid, Jose Maria Illa, Patrick Jelinsky, Sharon R. Jelinsky, Jorge Jimenez, Armin Karcher, Stephen Kent, David Kirkby, Jean-Paul Kneib, Andrew Lambert, Mike Lampton, Daniela Leitner, Michael Levi, Jeremy McCauley, Aaron Meisner, Timothy N. Miller, Ramon Miquel, Juliá Mundet, Claire Poppett, David Rabinowitz, Kevin Reil, David Roman, David Schlegel, Santiago Serrano, William Van Shourt, David Sprayberry, Gregory Tarlé, Suk Sien Tie, Curtis Weaverdyck, Kai Zhang, Marco Azzaro, Stephen Bailey, Santiago Becerril, Tami Blackwell, Mohamed Bouri, David Brooks, Elizabeth Buckley-Geer, Jose Peñate Castro, Mark Derwent, Arjun Dey, Govinda Dhungana, Peter Doel, Daniel J. Eisenstein, Nasib Fahim, Juan Garcia-Bellido, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Philipp Hörler, Robert Kehoe, Theodore Kisner, Anthony Kremin, Luzius Kronig, Martin Landriau, Laurent Le Guillou, Paul Martini, John Moustakas, Nathalie Palanque-Delabrouille, Xiyan Peng, Will Percival, Francisco Prada, Carlos Allende Prieto, Guillermo Gonzalez de Rivera, Eusebio Sanchez, Justo Sanchez, Ray Sharples, Marcelle Soares-Santos, Edward Schlafly, Benjamin Alan Weaver, Zhimin Zhou, Yaling Zhu, Hu Zou
Publikováno v:
Astron.J.
Astron.J., 2023, 165 (1), pp.9. ⟨10.3847/1538-3881/ac9ab1⟩
Astronomical Journal, 2023, Vol.165(1), pp.9 [Peer Reviewed Journal]
Astron.J., 2023, 165 (1), pp.9. ⟨10.3847/1538-3881/ac9ab1⟩
Astronomical Journal, 2023, Vol.165(1), pp.9 [Peer Reviewed Journal]
Full list of authors: Silber, Joseph Harry; Fagrelius, Parker; Fanning, Kevin; Schubnell, Michael; Aguilar, Jessica Nicole; Ahlen, Steven; Ameel, Jon; Ballester, Otger; Baltay, Charles; Bebek, Chris; Beard, Dominic Benton; Besuner, Robert; Cardiel-Sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cee75956e3f853465d8fd44633f643c
http://hdl.handle.net/10261/295416
http://hdl.handle.net/10261/295416
Autor:
Klaus Honscheid, Kevin Fanning, Stephen Bailey, Robert Besuner, Arjun Dey, Carl Dobson, Ann Elliott, Parker Fagrelius, Julien Guy, Jorge Jimenez, Stephen Kent, David Kirkby, Martin Landriau, Michael Levi, Robert Marshall, Paul Martini, Aaron Meisner, Claire Poppett, David Rabinowitz, Edward Schafly, Michael Schubnell, Joseph H. Silber, David Sprayberry
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy IX.
Autor:
Michael Schubnell, John B. Donaldson, Gregory Tarle, Pat Jelinsky, Michael Hawes, David J. Brooks, Francisco Prada, Daniel Pappalardo, Bob Stupak, Michael Levi, Derek Guenther, Parker Fagrelius, Armin Karcher, G. Gutierrez, Ashley J. Ross, C. Baltay, Patrick Dunlop, K. Honscheid, David Sprayberry, Enrique Gaztanaga, William V. Shourt, Robert Besuner, Kai Zhang, Yutong Duan, Ray M. Sharples, Christophe Magneville, Andrew Peter Doel, Matt Evatt, Lori Allen, Joseph H. Silber, P. H. Carton, Paul Martini, Jerry Edelstein, Robert Marshall, Claire Poppett, Richard R. Joyce, Martin Landriau
Publikováno v:
Proc.SPIE Int.Soc.Opt.Eng.
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online, United States. pp.1144710, ⟨10.1117/12.2561507⟩
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online, United States. pp.1144710, ⟨10.1117/12.2561507⟩
International audience; The Dark Energy Spectroscopic Instrument (DESI) is a Stage IV ground-based dark energy experiment that will measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 milli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::032eb6f798af5c050e822c32b800bb77
http://arxiv.org/abs/2101.11794
http://arxiv.org/abs/2101.11794
Autor:
Ting S. Li, C. M. Rockosi, David Sprayberry, David Brooks, Christophe Magneville, Michael E. Levi, Arjun Dey, Michael Schubnell, Behzad Abareshi, Gregory Tarle, Ashley J. Ross, Yutong Duan, D. Kirkby, Peter Doel, Francisco Prada, Bob Marshall, Richard Joyce, Robert Besuner, Martin Landriau, K. Honscheid, Enrique Gaztanaga, Hui Kong, Paul Martini, Aaron M. Meisner
Publikováno v:
Proc.SPIE Int.Soc.Opt.Eng.
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online, United States. pp.1144794, ⟨10.1117/12.2574776⟩
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online, United States. pp.1144794, ⟨10.1117/12.2574776⟩
In preparation for the Dark Energy Spectroscopic Instrument (DESI), a new top end was installed on the Mayall 4-meter telescope at Kitt Peak National Observatory. The refurbished telescope and the DESI instrument were successfully commissioned on sky
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b2350bc2c853822069c87d5702677af
https://hal.archives-ouvertes.fr/hal-03115886
https://hal.archives-ouvertes.fr/hal-03115886
Autor:
Thomas P. O'Brien, Mark Derwent, Paul Martini, Richard R. Joyce, Claire Poppett, Ronald G. Probst, G. Gallo, David Sprayberry, G. Gutierrez, Lori Allen, B. Flaugher, P. Jelinsky, Ray M. Sharples, D. Friend, Arjun Dey, Joseph H. Silber, Todd M. Claybaugh, T. Lavoie, David Bramall, David J. Brooks, Matthew Evatt, K. Honscheid, Behzad Abareshi, Peter Doel, Robert Marshall, Robert Besuner, Robert Blum
Publikováno v:
Ground-based and Airborne Telescopes VII.
Autor:
Ann Elliott, Anthony Paat, José M. Illa, David J. Schlegel, Laia Cardiel, A. N. Robertson, W. Emmet, Michael Levi, Arjun Dey, Richard R. Joyce, David Rabinowitz, A. Lambert, Parker Fagrelius, Ronald G. Probst, Armin Karcher, Christian Soto, G. Tarle, D. Summers, Christopher J. Manser, Yutong Duan, Jorge Jiménez, Lori Allen, Joseph H. Silber, Behzad Abareshi, O. Ballester, Paul Martini, Michael Schubnell, David Sprayberry, Michael Lampton, C. Baltay, Stephen J. Kent, K. Honscheid, E. Buckley-Geer, C. M. Rockosi, Karen Butler, Robert Besuner, Benjamin A. Weaver, Kevin Reil, Irena Gershkovich, Santiago Serrano, Robert Marshall
Publikováno v:
Publications of the Astronomical Society of the Pacific, vol 130, iss 984
The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the universe using the baryon acoustic oscillations technique. The spectra of 35 million galaxies and quasars over 14,000 square degrees will be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c333c68d46047373cc5934f3b2087b7
https://escholarship.org/uc/item/55n6t108
https://escholarship.org/uc/item/55n6t108