'Neutral fraction' presentation slideshows

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EOR signal extraction using skewness

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:

By rhian
(89 views)

Interstellar Turbulence and the Plasma Environment of the Heliosphere

Interstellar Turbulence and the Plasma Environment of the Heliosphere

Interstellar Turbulence and the Plasma Environment of the Heliosphere. Steven R. Spangler University of Iowa. The sky as imaged by the Wisconsin H Alpha Mapper (WHAM; Haffner et al 2003, ApJS 149, 405). The Warm Ionized Medium (WIM): where do stellar structures end and turbulence begin?.

By claire
(197 views)

The Reionization and Galaxy Evolution Probed by z=7 Lyα Emitters

The Reionization and Galaxy Evolution Probed by z=7 Lyα Emitters

The Reionization and Galaxy Evolution Probed by z=7 Lyα Emitters. Ota, 2007, PhD Thesis, Univ. Tokyo Iye, Ota, Kashikawa et al. 2006, Nature, 443, 186 Ota et al. 2007, submitted to ApJ ( arXiv:0707.1561 ). Kazuaki Ota Cosmic Radiation Laboratory, RIKEN

By merton
(76 views)

Post GP-WMAP Reionization: the morning after

Post GP-WMAP Reionization: the morning after

Post GP-WMAP Reionization: the morning after. We need quantitative measures of Epoch of reionization (Z reion ) Neutral fractions Volume fraction of ionized/neutral gas duration of reionization (  Z reion ) Sizes of bubbles: topology. Measuring reionization with Lyman-  emitters.

By cicely
(92 views)

Probing the End of Reionization with High-redshift Quasars

Probing the End of Reionization with High-redshift Quasars

Probing the End of Reionization with High-redshift Quasars. Xiaohui Fan University of Arizona Mar 18, 2005, Shanghai Collaborators: Becker, Gunn, Lupton, Narayanan, Penterrici, Richards, Rix, Strauss, White et al. And SDSS collaboration. Courtesy of Arizona graduate students.

By aelwen
(124 views)

Cosmic reionization and the history of the neutral intergalactic medium

Cosmic reionization and the history of the neutral intergalactic medium

Cosmic reionization and the history of the neutral intergalactic medium MAGPOP Summer School, Kloster Seeon Chris Carilli, NRAO, August 10, 2007. Introduction: What is Cosmic Reionization? Current constraints on the IGM neutral fraction with cosmic epoch

By ronli
(134 views)

Probing Reionization with z>6 Quasars

Probing Reionization with z>6 Quasars

Probing Reionization with z>6 Quasars. Richard L. White Space Telescope Science Institute STScI Workshop, 2006 March 13. Collaborators. Rick White (STScI) Bob Becker (UCD/LLNL) Xiaohui Fan (Arizona) Michael Strauss (Princeton). … and the Sloan Digital Sky Survey Consortium.

By ryann
(66 views)

Introduction: What is Cosmic Reionization?

Introduction: What is Cosmic Reionization?

Probing the neutral intergalactic medium during cosmic reionization using the 21cm line of hydrogen KIAA-PKU Summer School, Beijing, China Chris Carilli, NRAO, August 10, 2007. Introduction: What is Cosmic Reionization? Current constraints on the IGM neutral fraction with cosmic epoch

By elani
(129 views)

Radiation-induced large-scale structure

Radiation-induced large-scale structure

Radiation-induced large-scale structure. Rupert Croft (Carnegie Mellon). Studing Radiation-Induced LSS: Motivation We know a lot about the growth of large-scale structure due to gravitational instability from small seed fluctuations. -> seen in galaxy surveys, Lya forest etc…

By gemma-beard
(183 views)

Cosmic reionization and the history of the neutral intergalactic medium

Cosmic reionization and the history of the neutral intergalactic medium

Cosmic reionization and the history of the neutral intergalactic medium MAGPOP Summer School, Kloster Seeon Chris Carilli, NRAO, August 10, 2007. Introduction: What is Cosmic Reionization? Current constraints on the IGM neutral fraction with cosmic epoch

By kfischer
(0 views)


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