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A Large Sky Survey with MeerKAT

Santos, Mário G. and Bull, Philip and Camera, Stefano and Chen, Song and Fonseca, José and Heywood, Ian and Hilton, Matt and Jarvis, Matt and Józsa, Gyula I. G. and Knowles, Kenda and Leeuw, Lerothodi and Maartens, Roy and Malefahlo, Eliab and McAlpine, Kim and Moodley, Kavilan and Patel, Prina and Pourtsidou, Alkistis and Prescott, Matthew and Spekkens, Kristine and Taylor, Russ and Witzemann, Amadeus and Whittam, Imogen H. (2018) A Large Sky Survey with MeerKAT. In: MeerKAT Science: On the Pathway to the SKA (MeerKAT2016). Proceedings of Science. Vol.277. SISSA , Trieste, Italy, Art. No. 032. http://resolver.caltech.edu/CaltechAUTHORS:20180824-084901516

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Abstract

We discuss the ground-breaking science that will be possible with a wide area survey, using the MeerKAT telescope, known as MeerKLASS (MeerKAT Large Area Synoptic Survey). The current specifications of MeerKAT make it a great fit for cosmological applications, which require large volumes. In particular, a large survey over ~4,000 deg^2 for ~4,000 hours will potentially provide the first ever measurements of the baryon acoustic oscillations using the 21cm intensity mapping technique, with enough accuracy to impose constraints on the nature of dark energy. The combination with multi-wavelength data will give unique additional information, such as the first constraints on primordial non-Gaussianity using the multi-tracer technique, as well as a better handle on foregrounds and systematics. The survey will also produce a large continuum galaxy sample down to a depth of 5 µJy in L-band, unmatched by any other concurrent telescope, which will allow to study the large-scale structure of the Universe out to high redshifts. Finally, the same survey will supply unique information for a range of other science applications, including a large statistical investigation of galaxy clusters, and the discovery of rare high-redshift AGN that can be used to probe the epoch of reionization as well as produce a rotation measure map across a huge swathe of the sky. The MeerKLASS survey will be a crucial step on the road to using SKA1-MID for cosmological applications, as described in the top priority SKA key science projects.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.22323/1.277.0032DOIArticle
https://arxiv.org/abs/1709.06099arXivDiscussion Paper
ORCID:
AuthorORCID
Spekkens, Kristine0000-0002-0956-7949
Alternate Title:MeerKLASS: MeerKAT Large Area Synoptic Survey
Additional Information:Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. Published on: 2018 February 01. JF, MJ, RM, EM, KM, MP, PP, MGS, AW and IW are supported by the South African Square Kilometre Array Project and the National Research Foundation. PB is supported by the NASA Postdoctoral Program at the Jet Propulsion Laboratory, California Institute of Technology, administered by Universities Space Research Association under contract with NASA. AP is supported by a Dennis Sciama Fellowship at the University of Portsmouth, and acknowledges the University of Western Cape for hospitality. KK is supported by the Claude Leon Foundation.
Funders:
Funding AgencyGrant Number
South African Square Kilometre Array ProjectUNSPECIFIED
National Research Foundation (South Africa)UNSPECIFIED
NASA Postdoctoral ProgramUNSPECIFIED
NASA/JPL/CaltechUNSPECIFIED
University of PortsmouthUNSPECIFIED
Claude Leon FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:20180824-084901516
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180824-084901516
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89127
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Aug 2018 16:15
Last Modified:24 Aug 2018 16:15

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