CM2 - Cosmic Backgrounds from radio to far-IR |
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Speaker |
Bolliet, Boris |
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Coauthors |
Barbara Comis, Juan Macias Perez, Eiichiro Komatsu |
| Talk Title |
Cosmological Constraints from the Thermal Sunyaev Zeldovich Power Spectrum |
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Abstract |
I will briefly review the calculations of the thermal SZ power spectrum, both observationally and theoretically. I will show how the amplitude of the tSZ power spectrum on large angular scales depends on the assumed cosmological model. Then I will present a likelihood that can be used to set constraints on the cosmological parameters, based on the latest Planck analyses and including our uncertainty on several foreground signals. Finally, I will show the constraints that can be obtained on the equation of state of dark energy when we add the information relative to the expansion rate to the SZ likelihood, and compare them with those obtained from the CMB lensing data. The potential constraining power of the tSZ cosmological data regarding the mass of neutrinos may be discussed at the end of the presentation. |
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