Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26309
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Trott, C. M. | en_US |
dc.contributor.author | Pindor, B. | en_US |
dc.contributor.author | Procopio, P. | en_US |
dc.contributor.author | Wayth, R. B. | en_US |
dc.contributor.author | Mitchell, D. A. | en_US |
dc.contributor.author | McKinley, B. | en_US |
dc.contributor.author | Tingay, S. J. | en_US |
dc.contributor.author | Barry, N. | en_US |
dc.contributor.author | Beardsley, A. P. | en_US |
dc.contributor.author | BERNARDI, GIANNI | en_US |
dc.contributor.author | Bowman, Judd D. | en_US |
dc.contributor.author | Briggs, F. | en_US |
dc.contributor.author | Cappallo, R. J. | en_US |
dc.contributor.author | Carroll, P. | en_US |
dc.contributor.author | de Oliveira-Costa, A. | en_US |
dc.contributor.author | Dillon, Joshua S. | en_US |
dc.contributor.author | Ewall-Wice, A. | en_US |
dc.contributor.author | Feng, L. | en_US |
dc.contributor.author | Greenhill, L. J. | en_US |
dc.contributor.author | Hazelton, B. J. | en_US |
dc.contributor.author | Hewitt, J. N. | en_US |
dc.contributor.author | Hurley-Walker, N. | en_US |
dc.contributor.author | Johnston-Hollitt, M. | en_US |
dc.contributor.author | Jacobs, Daniel C. | en_US |
dc.contributor.author | Kaplan, D. L. | en_US |
dc.contributor.author | Kim, H. S. | en_US |
dc.contributor.author | Lenc, E. | en_US |
dc.contributor.author | Line, J. | en_US |
dc.contributor.author | Loeb, A. | en_US |
dc.contributor.author | Lonsdale, C. J. | en_US |
dc.contributor.author | Morales, M. F. | en_US |
dc.contributor.author | Morgan, E. | en_US |
dc.contributor.author | Neben, A. R. | en_US |
dc.contributor.author | Thyagarajan, Nithyanandan | en_US |
dc.contributor.author | Oberoi, D. | en_US |
dc.contributor.author | Offringa, A. R. | en_US |
dc.contributor.author | Ord, S. M. | en_US |
dc.contributor.author | Paul, S. | en_US |
dc.contributor.author | Pober, J. C. | en_US |
dc.contributor.author | Prabu, T. | en_US |
dc.contributor.author | Riding, J. | en_US |
dc.contributor.author | Udaya Shankar, N. | en_US |
dc.contributor.author | Sethi, Shiv K. | en_US |
dc.contributor.author | Srivani, K. S. | en_US |
dc.contributor.author | Subrahmanyan, R. | en_US |
dc.contributor.author | Sullivan, I. S. | en_US |
dc.contributor.author | Tegmark, M. | en_US |
dc.contributor.author | Webster, R. L. | en_US |
dc.contributor.author | Williams, A. | en_US |
dc.contributor.author | Williams, C. L. | en_US |
dc.contributor.author | Wu, C. | en_US |
dc.contributor.author | Wyithe, J. S. B. | en_US |
dc.date.accessioned | 2020-07-03T09:44:33Z | - |
dc.date.available | 2020-07-03T09:44:33Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26309 | - |
dc.description.abstract | Detection of the cosmological neutral hydrogen signal from the Epoch of Reionization (EoR) and estimation of its basic physical parameters are principal scientific aims of many current low-frequency radio telescopes. Here we describe the Cosmological H I Power Spectrum Estimator (CHIPS), an algorithm developed and implemented with data from the Murchison Widefield Array, to compute the two-dimensional and spherically-averaged power spectrum of brightness temperature fluctuations. The principal motivations for CHIPS are the application of realistic instrumental and foreground models to form the optimal estimator, thereby maximizing the likelihood of unbiased signal estimation, and allowing a full covariant understanding of the outputs. CHIPS employs an inverse-covariance weighting of the data through the maximum likelihood estimator, thereby allowing use of the full parameter space for signal estimation (“foreground suppression”). We describe the motivation for the algorithm, implementation, application to real and simulated data, and early outputs. Upon application to a set of 3 hr of data, we set a 2σ upper limit on the EoR dimensionless power at k=0.05 {{h}} Mpc<SUP>-1</SUP> of {{{∆ }}}<SUB>k</SUB><SUP>2</SUP>\lt 7.6× {10}<SUP>4</SUP> mK<SUP>2</SUP> in the redshift range z = [6.2-6.6], consistent with previous estimates. | en_US |
dc.language.iso | eng | en_US |
dc.title | CHIPS: The Cosmological H I Power Spectrum Estimator | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/818/2/139 | en_US |
dc.identifier.scopus | 2-s2.0-84960145189 | en_US |
dc.identifier.isi | 000372302800038 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/818/2/139 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 818 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 139 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | AUS | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...818..139T | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | 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.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0002-0916-7443 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Trott2016.pdf | Pdf editoriale | 1.95 MB | Adobe PDF | View/Open |
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