VizieR Online Data Catalog: Candidate fossil groups brightest central galaxies (Chu+, 2023)

The aim of this paper is to increase the number of known FGs to shed light on their formation process. Here, we increase the sample by 87 FG candidates confirmed spectroscopically, and with a high probability of being real FGs in view of their estimated large halo mass, though the confirmation of the X-ray condition on their X-ray luminosity (LX>10⁴²erg/s) is still missing. For the FGs with UNIONS data available (35 in the u band, 25 in the r band and 19 in the rLSB band (r band treated with the Elixir-LSB software), we analyse the morphological properties of their brightest group galaxy (BGG), and compare these properties with those of a control sample of 30 non-FG BGGs.

(2 data files).