AAS 201st Meeting, January, 2003
Session 128. Galaxy Evolution and Surveys" ``Nearby"
Oral, Thursday, January 9, 2003, 10:00-11:30am, 602-604

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[128.04] Lyman alpha emitting galaxies at z~ 2.4

C. Scarlata (STScI)

Searches for high redshift galaxies using medium and broad--band photometry to select Lyman alpha emission, have been proved to be an efficient way to select high redshift galaxies. This technique allows to identify not only young star-forming objects, but also old galaxies with emission lines, since it does not constrain the continuum shape. The emission in these objects can be due either to a secondary burst of star-formation or to nuclear activity.

In this paper we will present VLT optical spectra, and infrared imaging of four objects at redshift 2.4, previously selected by their emission in a medium--band filter centered at 4158Å.

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.