VizieR Online Data Catalog: Extremely metal-poor galaxies in SDSS. II. (Sanchez Almeida+ 2016)

First, we search for XMP candidates using the algorithm k-means (Sanchez Almeida et al. 2010ApJ...714..487S; Ordovas-Pascual & Sanchez Almeida 2014A&A...565A..53O). It leads to 1281 candidates. Then, we use the SDSS-DR7 spectra of the candidates to measure their integrated metallicity, which narrows down the list to 196 XMPs. We also include a second list (Table 2) with 332 potential XMPs that are selected under less restrictive noise constraints.

(2 data files).