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## PowerPoint Slideshow about ' Ly-alpha emission line' - moesha

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Ly-alpha emission line

LyaF Future: 3D map of LSS

- SDSS-III/BOSS quasar density (20 per sq. deg.)
- WFMOS can do up to ~8 times denser
- 100 Mpc/h deep
- 400 times this volume in SDSS

Current: very sparse

- SDSS-II quasar density (1 per sq. deg.)
- 100 Mpc/h deep
- 400 times this volume in SDSS

Current parameter highlights (all including tensors, kp=0.05 1/Mpc, WMAP5+Eisenstein BAO+LyaF)

(for T/S, BAO & LyaF independently find this level)

- With WMAP3, sum m_nu < 0.2 eV

Observed (3D) power

Ideal 3D power

(perfectly sampled)

Resolution

Sampling noise

n=surface density of lines of sight

(analogous to galaxy shot noise)

Detector noise

Simulated 3D flux power, relative to real-space linear theory(McDonald 2003)

Bottom to top on left:

mu=

0-0.25,

0.25-0.5,

0.5-0.75,

0.75-1.0

Theory/fitting formula for redshift-space power theory

- Linear theory on large scales
- Non-linearity + pressure + fingers-of-god
- Baryon wiggles simply modify P_L(k)

Parameter dependence of 3D flux power theory(McDonald 2003)

Black - increased amplitude

Red - increased slope

Solid - LOS

Dotted - transverse

Parameter dependence of 3D flux power theory(McDonald 2003)

Black - increased temperature

Red - increased dependence of temperature on density (gamma-1)

Solid - LOS

Dotted - transverse

Parameter dependence of 3D flux power theory(McDonald 2003)

Black - increased <F>

Red - never mind (related to Jeans filtering)

Solid - LOS

Dotted - transverse

Future BAO: Measure 3D power theory

- Band power measurement from BOSS
- Black: radial
- Green:transverse
- Red: diagonal
- Dotted: Seo & Eisenstein non-linear smearing
- Normalizations compressed.

Constraints vs. resolution theory

R=

62.5,

125,

250,

2000

(This was for a WFMOS-like survey, less area than BOSS)

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