The Rest-ultraviolet Morphologies Of Z=3.1 Lyα Emitters In The ECDF-S

Details The Rest-ultraviolet Morphologies Of Z=3.1 Lyα Emitters In The ECDF-S The Rest-ultraviolet Morphologies Of Z=3.1 Lyα Emitters In The ECDF-S

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342424b&link_type=abstract

American Astronomical Society, AAS Meeting #213, #424.24; Bulletin of the American Astronomical Society, Vol. 41, p.250

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We present a rest--UV morphological analysis of 103 z 3.1 Lyman Alpha Emitters (LAEs) in the Extended Chandra Deep Field South. Using V-band HST images taken as part of the GEMS and GOODS surveys, we generate the half-light radius and Sersic index distributions of the LAEs. Initial results suggest that they have a wide range of Sersic indices (1 < n < 10) but most commonly show disk-like morphology. Many of the candidate LAEs have multiple components in the HST images -- it is unclear if these reveal galaxy-galaxy interactions or a clumpy distribution of star-forming regions. In addition, their half-light radii are typically small (< 1 kpc, 4 pixels on HST/ACS) and concentration indices are typically high (> 2.5), with 50% being consistent with a point source.

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