NASA NTRS · 19910071366
Lyman-alpha emission from young galaxy disks
Abstract
An imaging survey of Ly-alpha disk absorption systems for Ly-alpha emission from the absorbing objects, which are candidate young disk galaxies, has been conducted. Limits are set to the flux in Ly-alpha from these objects of approximately 10 exp -16 ergs/sq cm s (3 sigma), which corresponds to a limit on the star formation rate of 2-7 solar masses/yr, in the absence of dust. This suggests that although disk structures form early, rapid star formation does not occur immediately, or else occurs in episodic fashion.
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Cohen, Ross D., Smith, Harding E.. 1990-01-01. Lyman-alpha emission from young galaxy disks. https://ntrs.nasa.gov/citations/19910071366
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