Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27308
DC Field | Value | Language |
---|---|---|
dc.contributor.author | DeBoer, David R. | en_US |
dc.contributor.author | Parsons, Aaron R. | en_US |
dc.contributor.author | Aguirre, James E. | en_US |
dc.contributor.author | Alexander, Paul | en_US |
dc.contributor.author | Ali, Zaki S. | en_US |
dc.contributor.author | Beardsley, Adam P. | en_US |
dc.contributor.author | BERNARDI, GIANNI | en_US |
dc.contributor.author | Bowman, Judd D. | en_US |
dc.contributor.author | Bradley, Richard F. | en_US |
dc.contributor.author | Carilli, Chris L. | en_US |
dc.contributor.author | Cheng, Carina | en_US |
dc.contributor.author | de Lera Acedo, Eloy | en_US |
dc.contributor.author | Dillon, Joshua S. | en_US |
dc.contributor.author | Ewall-Wice, Aaron | en_US |
dc.contributor.author | Fadana, Gcobisa | en_US |
dc.contributor.author | Fagnoni, Nicolas | en_US |
dc.contributor.author | Fritz, Randall | en_US |
dc.contributor.author | Furlanetto, Steve R. | en_US |
dc.contributor.author | Glendenning, Brian | en_US |
dc.contributor.author | Greig, Bradley | en_US |
dc.contributor.author | Grobbelaar, Jasper | en_US |
dc.contributor.author | Hazelton, Bryna J. | en_US |
dc.contributor.author | Hewitt, Jacqueline N. | en_US |
dc.contributor.author | Hickish, Jack | en_US |
dc.contributor.author | Jacobs, Daniel C. | en_US |
dc.contributor.author | Julius, Austin | en_US |
dc.contributor.author | Kariseb, MacCalvin | en_US |
dc.contributor.author | Kohn, Saul A. | en_US |
dc.contributor.author | Lekalake, Telalo | en_US |
dc.contributor.author | Liu, Adrian | en_US |
dc.contributor.author | Loots, Anita | en_US |
dc.contributor.author | MacMahon, David | en_US |
dc.contributor.author | Malan, Lourence | en_US |
dc.contributor.author | Malgas, Cresshim | en_US |
dc.contributor.author | Maree, Matthys | en_US |
dc.contributor.author | Martinot, Zachary | en_US |
dc.contributor.author | Mathison, Nathan | en_US |
dc.contributor.author | Matsetela, Eunice | en_US |
dc.contributor.author | Mesinger, Andrei | en_US |
dc.contributor.author | Morales, Miguel F. | en_US |
dc.contributor.author | Neben, Abraham R. | en_US |
dc.contributor.author | Patra, Nipanjana | en_US |
dc.contributor.author | Pieterse, Samantha | en_US |
dc.contributor.author | Pober, Jonathan C. | en_US |
dc.contributor.author | Razavi-Ghods, Nima | en_US |
dc.contributor.author | Ringuette, Jon | en_US |
dc.contributor.author | Robnett, James | en_US |
dc.contributor.author | Rosie, Kathryn | en_US |
dc.contributor.author | Sell, Raddwine | en_US |
dc.contributor.author | Smith, Craig | en_US |
dc.contributor.author | Syce, Angelo | en_US |
dc.contributor.author | Tegmark, Max | en_US |
dc.contributor.author | Thyagarajan, Nithyanandan | en_US |
dc.contributor.author | Williams, Peter K. G. | en_US |
dc.contributor.author | Zheng, Haoxuan | en_US |
dc.date.accessioned | 2020-09-11T10:16:36Z | - |
dc.date.available | 2020-09-11T10:16:36Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-6280 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27308 | - |
dc.description.abstract | The Hydrogen Epoch of Reionization Array (HERA) is a staged experiment to measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic reionization (z = 6-12), and to explore earlier epochs of our Cosmic Dawn (z ∼ 30). During these epochs, early stars and black holes heated and ionized the IGM, introducing fluctuations in 21 cm emission. HERA is designed to characterize the evolution of the 21 cm power spectrum to constrain the timing and morphology of reionization, the properties of the first galaxies, the evolution of large-scale structure, and the early sources of heating. The full HERA instrument will be a 350-element interferometer in South Africa consisting of 14 m parabolic dishes observing from 50 to 250 MHz. Currently, 19 dishes have been deployed on site and the next 18 are under construction. HERA has been designated as an SKA Precursor instrument. In this paper, we summarize HERA’s scientific context and provide forecasts for its key science results. After reviewing the current state of the art in foreground mitigation, we use the delay-spectrum technique to motivate high-level performance requirements for the HERA instrument. Next, we present the HERA instrument design, along with the subsystem specifications that ensure that HERA meets its performance requirements. Finally, we summarize the schedule and status of the project. We conclude by suggesting that, given the realities of foreground contamination, current-generation 21 cm instruments are approaching their sensitivity limits. HERA is designed to bring both the sensitivity and the precision to deliver its primary science on the basis of proven foreground filtering techniques, while developing new subtraction techniques to unlock new capabilities. The result will be a major step toward realizing the widely recognized scientific potential of 21 cm cosmology. | en_US |
dc.language.iso | eng | en_US |
dc.title | Hydrogen Epoch of Reionization Array (HERA) | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1088/1538-3873/129/974/045001 | en_US |
dc.identifier.scopus | 2-s2.0-85015827276 | en_US |
dc.identifier.isi | 000423185000001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/1538-3873/129/974/045001 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 129 | en_US |
dc.relation.issue | 974 | en_US |
dc.relation.firstpage | 045001 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017PASP..129d5001D | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0002-0916-7443 | - |
crisitem.journal.journalissn | 0004-6280 | - |
crisitem.journal.ance | E139082 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
PASP1606.07473.pdf | postprint | 13.49 MB | Adobe PDF | View/Open |
DeBoer17.pdf | [Administrators only] | 5.21 MB | Adobe PDF |
Page view(s)
56
checked on Apr 24, 2024
Download(s)
20
checked on Apr 24, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.