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MeerKLASS: MeerKAT Large Area Synoptic Survey
Mario G. Santos,Michelle E. Cluver,Matt Hilton,Matt J. Jarvis,Gyula I. G. Józsa,Lerothodi Leonard Leeuw,Oleg Smirnov,Russ Taylor,Filipe B. Abdalla,Jose Afonso,David Alonso,David Bacon,Bruce A. Bassett,Gianni Bernardi,Philip Bull,Stefano Camera,H. Cynthia Chiang,S. Colafrancesco,Pedro G. Ferreira,José Fonseca,Kurt van der Heyden,Ian Heywood,Kenda Knowles,Michelle Lochner,Yin-Zhe Ma,Roy Maartens,S. Makhathini,Kavilan Moodley,Alkistis Pourtsidou,Matthew Prescott,Jonathan Sievers,Kristine Spekkens,Mattia Vaccari,Amanda Weltman,I. H. Whittam,Amadeus Witzemann,Laura Wolz,Jonathan T. L. Zwart +37 more
TLDR
The MeerKLASS (MeerKAT Large Area Synoptic Survey) as mentioned in this paper is a large-scale survey of the sky that uses the Meer-KAT telescope.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 science applications that require large survey speeds but not necessarily high angular resolutions. In particular, for cosmology, a large survey over $\sim 4,000 \, {\rm deg}^2$ for $\sim 4,000$ 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 exquisite constraints on primordial non-Gaussianity using the multi-tracer technique, as well as a better handle on foregrounds and systematics. Such a wide survey with MeerKAT is also a great match for HI galaxy studies, providing unrivalled statistics in the pre-SKA era for galaxies resolved in the HI emission line beyond local structures at z > 0.01. It will also produce a large continuum galaxy sample down to a depth of about 5\,$\mu$Jy in L-band, which is quite unique over such large areas and will allow studies of the large-scale structure of the Universe out to high redshifts, complementing the galaxy HI survey to form a transformational multi-wavelength approach to study galaxy dynamics and evolution. Finally, the same survey will supply unique information for a range of other science applications, including a large statistical investigation of galaxy clusters 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 and other commensal surveys, as described in the top priority SKA key science projects (abridged).read more
Citations
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Journal ArticleDOI
MIGHTEE-HI: The HI emission project of the MeerKAT MIGHTEE survey
Natasha Maddox,B. S. Frank,Anastasia A. Ponomareva,Matt J. Jarvis,E. A. K. Adams,Romeel Davé,Tom Oosterloo,Mario G. Santos,S. L. Blyth,Marcin Glowacki,R. C. Kraan-Korteweg,Wanga Mulaudzi,B. Namumba,Isabella Prandoni,Sambatriniaina H. A. Rajohnson,Kristine Spekkens,N. J. Adams,Rebecca A. A. Bowler,Jordan D. Collier,Ian Heywood,Srikrishna Sekhar,A. R. Taylor +21 more
TL;DR: In this paper, the authors presented the first deep, blind, medium-wide interferometric survey for neutral hydrogen (HI) ever undertaken, extending our knowledge of HI emission to z = 0.6.
Journal ArticleDOI
The atomic Hydrogen content of the post-reionization Universe
TL;DR: In this paper, a comprehensive analysis of atomic hydrogen (HI) properties using a semi-analytical model of galaxy formation and N-body simulations covering a large cosmological volume at high resolution is presented.
Journal ArticleDOI
Simulated multitracer analyses with H I intensity mapping
TL;DR: In this paper, the authors used full sky simulations, including the effects of foreground contamination and removal, to explore multi-tracer synergies between a SKA-like 21cm intensity mapping survey and a LSST-like photometric galaxy redshift survey.
Journal ArticleDOI
Semi-analytic forecasts for JWST-IV. Implications for cosmic reionization and LyC escape fraction
L. Y. Aaron Yung,L. Y. Aaron Yung,Rachel S. Somerville,Rachel S. Somerville,Steven L. Finkelstein,Gergö Popping,Romeel Davé,Romeel Davé,Aparna Venkatesan,Peter Behroozi,Henry C. Ferguson +10 more
TL;DR: In this article, a physically motivated model of galaxy formation that reproduces the observed abundance of faint galaxies in the nearby Universe is also consistent with available observational constraints on the reionization history.
Journal ArticleDOI
21-cm foregrounds and polarization leakage: cleaning and mitigation strategies
Steven Cunnington,Melis O. Irfan,Melis O. Irfan,Isabella P. Carucci,Alkistis Pourtsidou,Alkistis Pourtsidou,Jérôme Bobin +6 more
TL;DR: In this paper, the authors present a range of simulated foreground data from four different sky regions, with and without effects from polarization leakage, and analyze the contribution from foreground residuals.
References
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