Probing the primordial Universe with MeerKAT and DES
Abstract It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on primordial non-Gaussianity from the Planck experiment. We show that two contemporary surveys, with the SKA precursor MeerKAT and th...
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| Published in: | Monthly notices of the Royal Astronomical Society Vol. 466; no. 3; pp. 2780 - 2786 |
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| Main Authors: | , , |
| Format: | Journal Article |
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21-04-2017
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| Abstract | Abstract
It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on primordial non-Gaussianity from the Planck experiment. We show that two contemporary surveys, with the SKA precursor MeerKAT and the Dark Energy Survey (DES), can be combined using the multitracer technique to deliver an accuracy on measurement of f
NL that is up to three times better than Planck. |
|---|---|
| AbstractList | It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on primordial non-Gaussianity from the Planck experiment. We show that two contemporary surveys, with the SKA precursor MeerKAT and the Dark Energy Survey (DES), can be combined using the multitracer technique to deliver an accuracy on measurement of fNL that is up to three times better than Planck. Abstract It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on primordial non-Gaussianity from the Planck experiment. We show that two contemporary surveys, with the SKA precursor MeerKAT and the Dark Energy Survey (DES), can be combined using the multitracer technique to deliver an accuracy on measurement of f NL that is up to three times better than Planck. |
| Author | Maartens, Roy Fonseca, José Santos, Mário G. |
| Author_xml | – sequence: 1 givenname: José surname: Fonseca fullname: Fonseca, José email: josecarlos.s.fonseca@gmail.com organization: 1Department of Physics and Astronomy, University of the Western Cape, Cape Town 7535, South Africa – sequence: 2 givenname: Roy surname: Maartens fullname: Maartens, Roy organization: 1Department of Physics and Astronomy, University of the Western Cape, Cape Town 7535, South Africa – sequence: 3 givenname: Mário G. surname: Santos fullname: Santos, Mário G. organization: 1Department of Physics and Astronomy, University of the Western Cape, Cape Town 7535, South Africa |
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| Cites_doi | 10.1103/PhysRevD.77.123514 10.1046/j.1365-8711.2003.06503.x 10.1103/PhysRevD.82.083508 10.1088/1475-7516/2009/10/007 10.1103/PhysRevLett.102.021302 10.1103/PhysRevD.87.064026 10.3847/0004-637X/817/1/26 10.1051/0004-6361:20053986 10.1093/mnras/stu2754 10.1086/303939 10.1103/PhysRevD.84.063505 10.1093/mnrasl/slv069 10.1088/2041-8205/812/2/L22 10.1051/0004-6361/201525836 10.1086/497068 10.1086/587840 10.1103/PhysRevD.94.042005 10.1088/2041-8205/740/1/L20 10.1103/PhysRevD.82.043515 10.1093/mnras/stw658 10.1088/1475-7516/2016/05/009 10.1093/mnras/stv040 10.1103/PhysRevD.85.041301 10.1103/PhysRevD.84.043516 10.1103/PhysRevD.84.083509 10.1086/380481 10.1103/PhysRevD.92.063525 10.1088/0004-637X/814/2/145 10.22323/1.215.0019 10.1093/mnras/stu1015 10.1103/PhysRevD.90.083520 10.1103/PhysRevD.86.063514 10.1093/mnras/stt465 10.1088/1475-7516/2013/11/044 10.1103/PhysRevD.85.023504 |
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It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best... It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on... |
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| SubjectTerms | Accuracy Astronomy Dark energy Measurement Normal distribution Precursors Sky surveys (astronomy) Time measurement Universe |
| Title | Probing the primordial Universe with MeerKAT and DES |
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