'Ly alpha' presentation slideshows

The 21cm signature of the First Stars

The 21cm signature of the First Stars. Xuelei Chen ??? National Astronomical Observatory of China. KIAS workshop on cosmology and structure formation , Seoul, Korea, Sept 20, 2006. z ~ 1000. z ~ 30. z ~ 6. z ~ 0. The Cosmic History. ?. small perturbations. gravity.

505 views • 36 slides

FRENEL Meeting, Nice, 23-25 September 2009

390 views • 32 slides

The Dark Age and Cosmology

The Dark Age and Cosmology. Xuelei Chen ( ??? ) National Astronomical Observarories of China. The 2nd Sino-French Workshop on the Dark Universe, Aug 31st 2006, Beijing. z ~ 1000. z ~ 30. z ~ 6. z ~ 0. The Cosmic History. small perturbations. gravity. collapse to form dark halos.

491 views • 31 slides

IFU observations of the high-z Universe

Constraints on feedback from deep field observations with SAURON and VIMOS. IFU observations of the high-z Universe. Joris Gerssen. Overview. Until a decade ago only extreme objects were known in the distant universe

389 views • 29 slides

Decoding Absorption in the IGM

Decoding Absorption in the IGM. Precision measurement program with integrated observations and simulations 50+ large full hydrodynamic simulations of IGM publicly available Calibrated 1% measurements of mean flux 1.6 < z < 3.5

365 views • 24 slides

Nowcasting of neutral and ion composition of the mesosphere: Ionosphere chemistry module.

Nowcasting of neutral and ion composition of the mesosphere: Ionosphere chemistry module. Egorova, T., E. Rozanov, J.-F. Hochedez, and W. Schmutz PMOD/WRC, Davos, Switzerland ROB, Brussels, Belgium SCSL meeting, 29 Nov.-1 Dec., 2006. The project idea:

167 views • 16 slides