| dc.contributor.author | Camera, Stefano | |
| dc.contributor.author | Santos, Mario G. | |
| dc.contributor.author | Ferreira, Pedro G. | |
| dc.contributor.author | Ferramacho, Luis | |
| dc.date.accessioned | 2018-02-06T13:33:59Z | |
| dc.date.available | 2018-02-06T13:33:59Z | |
| dc.date.issued | 2013 | |
| dc.identifier.citation | Camera, S. et al. (2013). Cosmology on ultralarge scales with intensity mapping of the neutral hydrogen 21 cm emission: limits on primodial non-gaussianity. Physical Review Letters, 111: 171302 | en_US |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevLett.111.171302 | |
| dc.identifier.uri | http://hdl.handle.net/10566/3480 | |
| dc.description.abstract | The large-scale structure of the Universe supplies crucial information about the physical processes
at play at early times. Unresolved maps of the intensity of 21 cm emission from neutral hydrogen HI at redshifts z ~ 1 − 5 are the best hope of accessing the ultralarge-scale information, directly related to the early Universe. A purpose-built HI intensity experiment may be used to detect the large scale effects of primordial non-Gaussianity, placing stringent bounds on different models of inflation. We argue that it may be possible to place tight constraints on the non-Gaussianity parameter fNL, with an error close to σfNL | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.rights | This is the pre-print version (from arXiv:1305.6928) of the article published online at: http://dx.doi.org/10.1103/PhysRevLett.111.171302 | |
| dc.subject | Universe | en_US |
| dc.subject | Unresolved maps | en_US |
| dc.subject | Galaxies | en_US |
| dc.subject | HI intensity | en_US |
| dc.subject | Non-Gaussianity parameter | en_US |
| dc.title | Cosmology on ultralarge scales with intensity mapping of the neutral hydrogen 21 cm emission: limits on primodial non-gaussianity | en_US |
| dc.type | Article | en_US |
| dc.privacy.showsubmitter | FALSE | |
| dc.status.ispeerreviewed | TRUE | |
| dc.description.accreditation | Web of Science | |
