'Reionization' diaporamas de présentation

Cosmology in the 21 st Century

Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide Show mode (presentation mode). Cosmology in the 21 st Century. Chapter 18. Guidepost.

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CMB Anisotropy thru WMAP III

CMB Anisotropy thru WMAP III. Ned Wright, UCLA. True Contrast CMB Sky. 33, 41 & 94 GHz as RGB, 0-4 K scale. Enhanced Contrast:. Conklin 1969 - 2 ? Henry 1971 - 3? Corey & Wilkinson 1976 - 4? Smoot et al. 1977 - 6?. A Big Media Splash in 1992:. 25 April 1992.

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A hot topic: the 21cm line II

A hot topic: the 21cm line II. Benedetta Ciardi. MPA. Timeline in cosmic history. Years since the Big Bang ~350000 (z~1300) ~100 million (z~20-40) ~1 billion (z~6) ~13 billion (z=0). Big Bang: the Universe is filled with hot plasma.

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The Intergalactic Medium: Where the Baryons Are

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A 20/20 vision of Reionization and Galaxy formation

A 20/20 vision of Reionization and Galaxy formation. Sangeeta Malhotra School of Earth and Space Exploration Arizona State University. Why Reionization?. As a watermark for galaxy-formation: 10 ionizing photons per Baryon produced by galaxies. Why Reionization?.

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HI 21cm Signal from Cosmic Reionization IAU 2006, Long Wavelength Astrophysics

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z=1.5

The First Billion Years of Galaxy Evolution Ranga-Ram Chary Spitzer Science Center/Planck Data Center California Institute of Technology, Pasadena, USA. z=1000. z=6. z=1.5. z=0. z=10. Colleagues and Collaborators: Asantha Cooray (UCI) Ian Sullivan (Caltech) GOODS team (Earth)

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21 cm cosmology

The Dawn of 21 cm Cosmology with EDGES Judd D. Bowman Caltech Alan E. E. Rogers Haystack Observatory. 21 cm cosmology. 75% Hydrogen (by mass). WFC3/HUDF09, z = 7-8. Illingworth. Image: Scientific American 2006. 21 cm hyperfine line of hydrogen.

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Neutrinos and Cosmology

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WMAP Implications for Reionization

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In search of reionization:

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L. Calcada/ESO

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Simona Gallerani

Constraining cosmic reionization models with QSOs, GRBs and LAEs observational data. Simona Gallerani. Astronomical Observatory of Rome. In collaboration with: A. Ferrara, X. Fan, T. Choudhury, R. Salvaterra , P. Dayal.

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Cosmic Dawn and IGM Reionization

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Simona Gallerani (Osservatorio Astronomico di Roma)

The proximity effect around high-redshift quasars. Simona Gallerani (Osservatorio Astronomico di Roma). In collaboration with: T. Roy Choudhury, X. Fan, A. Ferrara, A. Maselli. 8 th February 2010 2 nd Roman Young Researchers Meeting. Cosmic reionization. B I G B A N G.

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EOR signal extraction using skewness

EOR signal extraction using skewness. (astro-ph: 0809.2428) Geraint Harker Kapteyn Astronomical Institute, Groningen. The problem. Extract a cosmological signal from a datacube, the three axes of which are x and y positions, and frequency. Consider three components:

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Remote Quadrupole Measurements from Reionization

Remote Quadrupole Measurements from Reionization. Gil Holder. Collaborators: Jon Dudley; Alex van Engelen (McGill) Ilian Iliev (CITA/Zurich); Olivier Dore (CITA). Reionization signatures in the CMB. Varying z of reionization.

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History of IGM

History of IGM. ionized. C.Carilli (NRAO) NNIW Dec 04. neutral. Epoch of Reionization (EoR). bench-mark in cosmic structure formation indicating the first luminous structures. ionized. z=5.80. z=5.82. z=5.99. z=6.28. The Gunn Peterson Effect.

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JD Bowman & AEE Rogers Nature 468 , 796-798 (2010) doi:10.1038/nature09601

Lower confidence bounds on the duration of the reionization transition. Statistical and systematic uncertainties are included. JD Bowman & AEE Rogers Nature 468 , 796-798 (2010) doi:10.1038/nature09601.

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