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First Stars III
Contact:
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Poster
Title: Mass-to-light Ratio of Ly-alpha Emitters: Implications of Ly-alpha Surveys at Redshifts z=5.7, 6.5, 7, and 8.8 Author(s): Elizabeth Fernandez Abstract: We present a simple, relatively model-independent method to
interpret the galaxy number count data at z>6. The only free parameter is
a mass-to-"observed light" ratio, M_h /L_band , where M_h refers to the
total mass of the host halo, and L_band refers to the observed luminosity
of the source. For narrow-band surveys, L_band is simply related to the
intrinsic Ly-alpha luminosity with a survival fraction of Ly photons,
alpha_esc.
The mass-to-"bolometric light", M_h /L_bol , can also be found, once the
metallicity and initial mass function of stellar populations are given.
We find constraints on the mass-to-light ratio of Ly-alpha emitters from
5.7 |
