SIMBAD references

We look for wide, faint companions around members of the 5Myr Lambda Orionis open cluster. We used optical, near-infrared, and Spitzer/IRAC photometry. We report the discovery of a very wide very low mass visual binary, LOri167, formed by a brown dwarf and a planetary-mass candidate located at 5 arcsec, which seems to belong to the cluster. We derive T_eff of 2125 and 1750K. If they are members, comparisons with theoretical models indicate masses of 17⁺³_–2 and 8⁺⁵_–1M_jup, with a projected separation of 2000 AU. Such a binary system would be difficult to explain in most models, particularly those where substellar objects form in the disks surrounding higher mass stars.