dc.contributor.author | Cunnington, S | |
dc.contributor.author | Harrison, I | |
dc.contributor.author | Pourtsidou, A | |
dc.contributor.author | Bacon, D | |
dc.date.accessioned | 2019-05-02T09:52:02Z | |
dc.date.available | 2018-10-19 | |
dc.date.available | 2019-05-02T09:52:02Z | |
dc.date.issued | 2019-01 | |
dc.identifier.citation | Cunnington, S., Harrison, I., Pourtsidou, A. and Bacon, D. (2018). H i intensity mapping for clustering-based redshift estimation. Monthly Notices of the Royal Astronomical Society, [online] 482(3), pp.3341-3355. Available at: https://academic.oup.com/mnras/article/482/3/3341/5145866 [Accessed 2 May 2019]. | en_US |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/57315 | |
dc.description.abstract | Precision cosmology requires accurate galaxy redshifts, but next-generation optical surveys will observe unprecedented numbers of resolved galaxies, placing strain on the amount of spectroscopic follow-up required. We show how useful information can be gained on the redshift distributions of optical galaxy samples from spatial cross-correlations with intensity maps of unresolved H I (21 cm) spectral-line emission. We construct a redshift distribution estimator, which we test using simulations. We utilize the S3-SAX catalogue that includes H I emission information for each galaxy, which we use to construct H I intensity maps. We also make use of simulated LSST and Euclid-like photometry enabling us to apply the H I clustering calibration to realistic simulated photometric redshifts. While taking into account important limitations to H I intensity mapping such as lost k modes from foreground cleaning and poor angular resolution due to large receiver beams, we show that excellent constraints on redshift distributions can be provided for an optical photometric sample. | en_US |
dc.format.extent | 3341 - 3355 | |
dc.publisher | Oxford University Press | en_US |
dc.relation.ispartof | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | |
dc.rights | This is a pre-copyedited, author-produced version of an article accepted for publication in MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY following peer review. The version of record is available https://academic.oup.com/mnras/article/482/3/3341/5145866 | |
dc.subject | techniques: photometric | en_US |
dc.subject | techniques: spectroscopic | en_US |
dc.subject | galaxies: distances and redshifts | en_US |
dc.subject | large-scale structure of Universe | en_US |
dc.subject | cosmology: observations | en_US |
dc.subject | radio lines: galaxies | en_US |
dc.title | HI intensity mapping for clustering-based redshift estimation | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society | |
dc.identifier.doi | 10.1093/mnras/sty2928 | |
pubs.author-url | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000462312600035&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=612ae0d773dcbdba3046f6df545e9f6a | en_US |
pubs.issue | 3 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 482 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |