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Radio galaxy populations and the multitracer technique: pushing the limits on primordial non-Gaussianity

Abstract:

We explore the use of different radio galaxy populations as tracers of different mass haloes and therefore, with different bias properties, to constrain primordial non-Gaussianity of the local type.We perform a Fisher matrix analysis based on the predicted auto- and cross-angular power spectra of these populations, using simulated redshift distributions as a function of detection flux and the evolution of the bias for the different galaxy types (star-forming galaxies, starburst galaxies, radi...

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Publication status:
Published

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Publisher copy:
10.1093/mnras/stu1015

Authors


Publisher:
Oxford University Press
Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
442
Issue:
3
Pages:
2511-2518
Publication date:
2014-08-11
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:ef7e3168-646b-41a8-a224-0d508902e65e
Source identifiers:
478794
Local pid:
pubs:478794

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