Fig. 39
Spatial distribution of the bona fide Cepheids released in Gaia DR2 (about 8900 sources in total). Red filled circles are known Cepheids in the literature (OGLE and other surveys), and blue filled circles are new Cepheids detected by Gaia in the LMC, SMC (118 in total), and All-Sky (about 240 in total). The latter sample has been cleaned from other types of variable objects that do not follow the PL and PW relations, see discussion at the end of Sect. 3.2.
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