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A good candidate for a polar-ring galaxy has been detected in the HubbleUltra Deep Field (HUDF). The galaxy HUDF 1619 (V~25 mag, z~1) is the mostdistant object of this type known to date. A large-scale structure crosses thehighly warped disk of the main galaxy seen almost edge-on at an angle of about70 grad. The luminosity of this structure (the possible polar ring) reaches\~1/3 of the luminosity of the central galaxy. A strong absorption lane is seenin the region where this structure is projected onto the disk of the centralobject. There are two galaxies of comparable luminosity adjacent to HUDF 1619(in projection). One of them may be the donor galaxy in the interaction whichgave rise to the ring structure.Comment: 5 pages, 4 figure

HUDF 1619—A candidate for polar-ring galaxies in the Hubble Ultra Deep Field