VLT observations of Compact Central Objects

We present the first results of our VLT observation campaign of the Central Compact Objects (CCOs) in SNRs RX J085201.4‐461753 (Vela Jr), 1E 1648‐5051 (RCW 103) and RX J171328.4‐394955 (G347.3‐0.5). For Vela Jr., we found that the source is embedded in a compact optical nebulosity, possibly a bow‐shock or a photo‐ionization nebula, and we identified a candidate IR counterpart to the CCO. For RCW 103, we found no convincing evidence neither for 6 hrs IR modulation nor for variability on any time scale from the proposed counterpart, as well as for the other candidates close to the revised Chandra position. For G347.3‐0.5, we identified few possible IR counterparts but none of them is apparently associated with the CCO.