Zobrazeno 1 - 10
of 19
pro vyhledávání: '"William P Walbrugh"'
Autor:
Tamirat G Gogo, Yin-Zhe Ma, Piyanat Kittiwisit, Jonathan L Sievers, Aaron R Parsons, Jonathan C Pober, Daniel C Jacobs, Carina Cheng, Matthew Kolopanis, Adrian Liu, Saul A Kohn, James E Aguirre, Zaki S Ali, Gianni Bernardi, Richard F Bradley, David R DeBoer, Matthew R Dexter, Joshua S Dillon, Pat Klima, David H E MacMahon, David F Moore, Chuneeta D Nunhokee, William P Walbrugh, Andre Walker
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 510:1680-1696
Observation of redshifted 21-cm signal from the Epoch of Reionization (EoR) is challenging due to contamination from the bright foreground sources that exceed the signal by several orders of magnitude. The removal of this very high foreground relies
Autor:
Chuneeta D. Nunhokee, David MacMahon, Matthew Kolopanis, Joshua S. Dillon, Andre Walker, Joshua Kerrigan, William P. Walbrugh, Zaki S. Ali, Chris Carilli, Adrian Liu, Nithyanandan Thyagarajan, Gianni Bernardi, Pat Klima, Jonathan C. Pober, Carina Cheng, Saul A. Kohn, Aaron R. Parsons, Matthew R. Dexter, David DeBoer, James E. Aguirre, Richard F. Bradley, David F. Moore, Daniel C. Jacobs
We present limits on the 21cm power spectrum from the Epoch of Reionization (EoR) using data from the 64 antenna configuration of the Donald C. Backer Precision Array for Probing the Epoch of Reionization (PAPER) analyzed through a power spectrum pip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::784deccf0713e55e72c9f1b3e03dc33b
Autor:
James E. Aguirre, William P. Walbrugh, Richard F. Bradley, David F. Moore, Irina I. Stefan, David DeBoer, Matthys Maree, David MacMahon, Adrian Liu, Jasper Horrell, Andre Walker, Aaron R. Parsons, Haoxuan Zheng, Matthew R. Dexter, Pat Klima, Gianni Bernardi, Jonathan C. Pober, Jasper Grobbelaar, Nima Razavi, Daniel C. Jacobs, Zaki S. Ali, Carina Cheng, Chris Carilli
Publikováno v:
The Astrophysical Journal, vol 863, iss 2
Author(s): Ali, ZS; Parsons, AR; Zheng, H; Pober, JC; Liu, A; Aguirre, JE; Bradley, RF; Bernardi, G; Carilli, CL; Cheng, C; Deboer, DR; Dexter, MR; Grobbelaar, J; Horrell, J; Jacobs, DC; Klima, P; Macmahon, DHE; Maree, M; Moore, DF; Razavi, N; Stefan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7936d658a7d8a7a9fd0753dbee63ae83
http://hdl.handle.net/20.500.12386/27781
http://hdl.handle.net/20.500.12386/27781
Autor:
Jonathan C. Pober, Chris Carilli, Joshua S. Dillon, David MacMahon, Daniel C. Jacobs, Adrian Liu, Chuneeta D. Nunhokee, Aaron R. Parsons, Gianni Bernardi, Pat Klima, Richard F. Bradley, Matthew Kolopanis, Matthew R. Dexter, David DeBoer, Zaki S. Ali, Carina Cheng, Saul A. Kohn, James E. Aguirre, David F. Moore, William P. Walbrugh, Andre Walker
Publikováno v:
The Astrophysical Journal. 868:26
The Epoch of Reionization (EoR) is an uncharted era in our Universe's history during which the birth of the first stars and galaxies led to the ionization of neutral hydrogen in the intergalactic medium. There are many experiments investigating the E
Autor:
Nicole E. Gugliucci, Richard F. Bradley, James E. Aguirre, David F. Moore, P. Klima, Daniel C. Jacobs, Saul A. Kohn, Irina I. Stefan, Aaron R. Parsons, D. MacMahon, Gianni Bernardi, Jonathan C. Pober, D. R. DeBoer, Chris Carilli, Chuneeta D. Nunhokee, William P. Walbrugh, Zaki S. Ali, Jason Manley
Current-generation low frequency interferometers constructed with the objective of detecting the high-redshift 21 cm background, aim to generate power spectra of the brightness-temperature contrast of neutral hydrogen in primordial intergalactic medi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e63b11fb3f84181a6e72ad58a581fa24
http://hdl.handle.net/20.500.12386/26313
http://hdl.handle.net/20.500.12386/26313
Autor:
Haoxuan Zheng, Daniel C. Jacobs, James E. Aguirre, David F. Moore, Gianni Bernardi, Aaron R. Parsons, Irina I. Stefan, Adrian Liu, Matthew R. Dexter, David DeBoer, Zaki S. Ali, Richard F. Bradley, William P. Walbrugh, Jasper Horrell, David MacMahon, Andre Walker, Matthys Maree, Nima Razavi, Carina Cheng, Chris Carilli, Pat Klima, Jonathan C. Pober, Jasper Grobbelaar
In this paper, we report new limits on 21cm emission from cosmic reionization based on a 135-day observing campaign with a 64-element deployment of the Donald C. Backer Precision Array for Probing the Epoch of Reionization (PAPER) in South Africa. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57e486e8e98fede5e15db7664f3e21e4
http://arxiv.org/abs/1502.06016
http://arxiv.org/abs/1502.06016
Autor:
Aaron R. Parsons, Gianni Bernardi, Matthew R. Dexter, Jonathan C. Pober, Andrei Mesinger, Jasper Horrell, David F. Moore, David DeBoer, Jasper Grobbelaar, Chris Carilli, Daniel C. Jacobs, David MacMahon, Carina Cheng, Saul A. Kohn, Irina I. Stefan, Nima Razavi-Ghods, Steven R. Furlanetto, James E. Aguirre, Patricia J. Klima, Richard F. Bradley, William P. Walbrugh, Haoxuan Zheng, Adrian Liu, Zaki S. Ali, Matthys Maree, Andre Walker, Matthew McQuinn
We present constraints on both the kinetic temperature of the intergalactic medium (IGM) at z=8.4, and on models for heating the IGM at high-redshift with X-ray emission from the first collapsed objects. These constraints are derived using a semi-ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebcab0317e223e28fdb914c0879b2e33
http://hdl.handle.net/20.500.12386/26329
http://hdl.handle.net/20.500.12386/26329
Autor:
Daniel C. Jacobs, Pat Klima, James E. Aguirre, Nicole E. Gugliucci, Jason Manley, Zaki S. Ali, Richard F. Bradley, David F. Moore, Aaron R. Parsons, Irina I. Stefan, Jonathan C. Pober, Matthew R. Dexter, Chris Carilli, Adrian Liu, Saul A. Kohn, William P. Walbrugh, David MacMahon, David DeBoer
Publikováno v:
The Astrophysical Journal. 836:154
Polarized foreground emission is a potential contaminant of attempts to measure the fluctuation power spectrum of highly redshifted 21 cm H i emission from the epoch of reionization. Using the Donald C. Backer Precision Array for Probing the Epoch of
Autor:
David A. Green, David DeBoer, Jonathan C. Pober, William P. Walbrugh, Aaron R. Parsons, Nicole E. Gugliucci, Matthew R. Dexter, P. Klima, Irina I. Stefan, David MacMahon, James E. Aguirre, Zaki S. Ali, Richard F. Bradley, David F. Moore, D. E. Harris, Jason Manley, Chris L. Carilli, Daniel C. Jacobs
We present observations taken with the Precision Array for Probing the Epoch of Reionization (PAPER) of the Centaurus A field in the frequency range 114 to 188 MHz. The resulting image has a 25' resolution, a dynamic range of 3500 and an r.m.s. of 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf41ded48d2cbe556abc37ec2e96a14b
Autor:
James E. Aguirre, Daniel C. Jacobs, Richard F. Bradley, Irina I. Stefan, David F. Moore, David MacMahon, Adrian Liu, Zaki S. Ali, David DeBoer, William P. Walbrugh, Aaron R. Parsons, Judd D. Bowman, Jonathan C. Pober, Matthew R. Dexter, Jason Manley, Nicole E. Gugliucci, Chris Carilli, Pat Klima
Publikováno v:
The Astrophysical Journal. 801:51
The epoch of reionization power spectrum is expected to evolve strongly with redshift, and it is this variation with cosmic history that will allow us to begin to place constraints on the physics of reionization. The primary obstacle to the measureme