|Line||lam, Å||Fline/FH-alpha||Lline/Msolyr-1, 1040 erg s-1||Plots|
Plot (PS) of Ly-alpha photon count rate against redshift, for SFR=1Msolyr-1 and for three different cosmologies.
Plot (PS) of comoving survey volume, in Mpc3, against redshift, assuming a redshift slice dz = 0.1, and field of view 8.5'x8.5', for three different cosmologies.
Plot (PS) of angular scale, for the same three cosmologies.
Density of Ly-alpha emitters at z=4, with SFR=1 Msolyr-1 is comparable to phi*, however. Hierarchical cosmogonies (CDM) lead us to expect low-mass systems to dominate at high z, so these objects are far more representative of the early stages of galaxy formation than the bright submm sources. DAZLE's detection rate, in a small (dz=0.1) redshift slice, in the low-SFR regime, should rival LMA's with bright objects over a much larger (hence uncertain) redshift range.
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Anthony Horton email@example.com