A search for distant solar system bodies in the region of Sedna
We present the results of a wide-field survey for distant Sedna-like bodies in the outer solar system using the 1.2 m Samuel Oschin Telescope at Palomar Observatory. We searched ~12,000 deg^2 down to a mean limiting magnitude of 21.3 in R. A total number of 53 Kuiper Belt objects and Centaurs have been detected, 25 of which were discovered in this survey. No additional Sedna-like bodies with perihelia beyond 70 AU were found despite a sensitivity to motions out to ~1000 AU. We place constraints on the size and distribution of objects on Sedna orbits.
Additional Information© 2009 The American Astronomical Society. Received 2009 January 7; accepted 2009 January 27; published 2009 February 26. This research is supported by NASA Origins of Solar Systems Program grant NNG05GI02G. We thank the staff at Palomar Observatory for their dedicated support of the robotic operation of the Samuel Oschin Telescope and QUEST camera. The authors also thank Greg Aldering for his help in scheduling the observations. We acknowledge Mansi Kasliwal, Henry Roe, and John Subasavage for their assistance with recovery observations of our new discoveries. We also thank Darin Ragozzine for insightful conversations. Facilities: PO:1.2 m
Published - Schwamb2009p1050Astrophys_J_Lett.pdf
Accepted Version - 0901.4173.pdf