Research summary
Henrot-Versille's publications are from the Planck collaboration and report cosmological measurements derived from full-mission temperature and polarization observations of the cosmic microwave background. The 2015 results paper reports parameters consistent with the six-parameter inflationary LambdaCDM cosmology: H0 = 67.8 +/- 0.9 km/s/Mpc, Omega_m = 0.308 +/- 0.012, and a scalar spectral index n_s = 0.968 +/- 0.006, with the LFI polarization measurements yielding a reionization optical depth tau = 0.066 +/- 0.016 [1]. The 2013 release of XVI Cosmological Parameters reported the first Planck cosmological results, finding that the high-multipole (> 40) temperature spectrum is well described by spatially flat six-parameter LambdaCDM with adiabatic scalar perturbations, and precisely determining the sound-horizon angular size, baryon and cold-dark-matter densities, and the spectral index [2]. A Manchester repository version of the 2015 results paper restates the LambdaCDM consistency with increased precision over the 2013 analysis [3]. A CaltechAUTHORS version of the 2015 results examines implications for cosmic inflation using both temperature and large-scale polarization from the full mission, measuring n_s = 0.968 +/- 0.006 with a scale dependence dn_s/dlnk = -0.003 +/- 0.007 when combined with Planck lensing [4]. The Astronomy and Astrophysics 2015 inflation paper presents the same results with high-ell polarization data included [5]. The 2013 XXII inflation paper combined Planck temperature with WMAP large-angle polarization to constrain n_s = 0.9603 +/- 0.0073, ruling out exact scale invariance at over 5 sigma, and placed an upper bound r < 0.11 (95% CL) on the tensor-to-scalar ratio while disfavouring exponential potentials, simple hybrid models, and n = 2 monomial potentials [6]. The 2013 XI thermal-dust paper used 353, 545, and 857 GHz Planck data with IRAS 100 micron data to fit a modified blackbody model and produce all-sky maps of dust optical depth, temperature, and spectral index over 353-3000 GHz, with about 30% differences from the Finkbeiner-Davis-Schlegel model [7]. The 2013 HFI time-response and beam paper characterises effective beams and window functions for the HFI detectors as the convolution of telescope optics, time-ordered data processing, and scan strategy [8]. The 2015 likelihoods paper describes pixel-based and Gaussian-approximation likelihoods for CMB power spectra [9]. The 2015 SZ cluster paper reports cluster counts and cosmological constraints from a catalogue of 439 Sunyaev-Zeldovich clusters [10].
Recent publications
- Planck2015 resultsDOI
- Planck2013 results. XVI. Cosmological parametersDOI
- Planck 2015 resultsDOI
- Planck 2015 resultsDOI
- Planck2015 resultsDOI
- Planck2013 results. XXII. Constraints on inflationDOI
- Planck2013 results. XI. All-sky model of thermal dust emissionDOI
- Planck 2013 results. VII. HFI time response and beamsDOI
- Planck2015 resultsDOI
- Planck2015 resultsDOI
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How to apply
Email S. Henrot–Versillé 6-12 months before your application deadline. Read several recent papers and reference specific work in your message. Use our how to email a Japanese professor guide for the proven email structure.
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External profiles
- ORCID: https://orcid.org/0000-0003-1218-2991
- OpenAlex: openalex.org
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