'Redshift space' diaporamas de présentation

LAMOST .vs. Dark matter and Dark energy

LAMOST .vs. Dark matter and Dark energy. ????????????????? The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). Location Xinglong Station, National Astronomical Observatories, Chinese Academy of Sciences Cost RMB 235 Million yuan (~$30M) Construction Period 7 years.

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Observational Approaches to Understanding Dark Energy

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High-redshift 21cm and redshift distortions

High-redshift 21cm and redshift distortions. Antony Lewis Institute of Astronomy, Cambridge http://cosmologist.info/. Work with:. Anthony Challinor (IoA, DAMTP); astro-ph/0702600 Richard Shaw (IoA ), arXiv:0808.1724.

377 views • 37 slides

Baryon Acoustic Oscillations and DE Figure of Merit

BAO as a robust dark energy probe Forecasting DE FoM from BAO. Baryon Acoustic Oscillations and DE Figure of Merit. Yun Wang WFIRST SDT #2, March 2011. How We Probe Dark Energy. Cosmic expansion history H ( z ) or DE density ? X ( z ): tells us whether DE is a cosmological constant

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The Void Probability function and related statistics

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Eric Linder 23 September 2013

Advances and Opportunities in Cosmology. a t KASI. Eric Linder 23 September 2013. Berkeley Center for Cosmological Physics. Role of Observations. ???? ??. But ? , what big teeth you have! . Before we jump into bed with ? , we should be sure it is not something more beastly. .

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Redshift -Space Enhancement of LOS Baryon Acoustic Oscillations in the SDSS-MGS

Redshift -Space Enhancement of LOS Baryon Acoustic Oscillations in the SDSS-MGS. Reporter: Haijun Tian Alex Szalay, Mark Neyrinck, Tamas Budavari. arXiv:1011.2481. Outline. Background Redshift Space ? in Linear Theory Measurement from simulations Measurement from SDSS

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What Figure of Merit Should We Use to Evaluate Dark Energy Projects?

What Figure of Merit Should We Use to Evaluate Dark Energy Projects?. Yun Wang STScI Dark Energy Symposium May 6, 2008. How We Probe Dark Energy. Cosmic expansion history H ( z ) or DE density ? X ( z ): tells us whether DE is a cosmological constant

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The Alcock-Paczynski Probe of Cosmology

The Alcock-Paczynski Probe of Cosmology. Lyman- ? forest, LSS, And Cosmic Consistency. Albert Stebbins Fermilab. Dark Energy Workshop Center for Cosmological Physics University of Chicago 15 December 2001. z. ?.

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(Higher-order) Clustering in the SDSS

(Higher-order) Clustering in the SDSS. Bob Nichol (Portsmouth) Gauri Kulkarni (CMU) SDSS collaboration. 3pt primer. 3. r. dP 12 = n 2 dV 1 dV 2 [1 + x (r)]. ?. dV 2. 2. dV 1. s. qr. dP 123 =n 3 dV 1 dV 2 dV 3 [1+ x 23 (r)+ x 13 (r)+ x 12 (r)+ x 123 (r)].

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Anisotropic Correlation Function of Large-Scale Galaxy Distribution from the SDSS LRG Sample

Anisotropic Correlation Function of Large-Scale Galaxy Distribution from the SDSS LRG Sample. OQSCM @ Imperial College London Mar. 29, 2007. Teppei O KUMURA (Nagoya University, Japan) Takahiko Matsubara 1 , Daniel Eisenstein 2 , Issha Kayo 1 , Chiaki Hikage 1 , & Alex Szalay 3 ,

312 views • 16 slides