GALEX-selected Lyman Limit Survey: Preliminary Results

Presentation #342.23 in the session “Galaxy Evolution & Populations”.

by S. Papp, G. M. Williger, J. Ribaudo, J. T. Lauroesch, L. G. Haberzettl, B. S. Mills, D. P. Morkwed, V. L. Knoer, and E. G. Keisling

Published onJan 11, 2021

We have searched GALEX spectra of ~3000 known quasars for Lyman limit systems (LLSs) at z<2. The total redshift path length is ~230, and we identify ~90 LLSs complete for log NHI >~ 17.5 by machine and by eye. About 85% of the LLSs have complementary SDSS optical spectra. We present the redshift density, column density distribution and example spectra. The GALEX-selected LLS sample is in particular sensitive at 1<z<2.5, which complements ground-based and FUV-selected samples.

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Creative Commons Attribution 4.0 International License (CC-BY 4.0)

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