{"paper":{"title":"An Adaptive Optics Search for Companions to Stars with Planets","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"K. L. Luhman (CfA), Ray Jayawardhana (UCB)","submitted_at":"2001-10-25T14:13:50Z","abstract_excerpt":"We have performed a Keck adaptive optics (AO) imaging survey of 25 extrasolar planetary systems discovered by the radial velocity programs. Typically, the high-resolution (FWHM~0.04\") near-infrared images are able to detect point sources at dH=10 at 1\", L and T dwarfs at 0.5\" to 2.0\", and stars and brown dwarfs at 3-10 AU and 10-100 AU from the targets. The AO images reveal 15 faint sources (H=14-20) near the stars HD 37124, HD 168443, HD 187123, and HD 190228 out to a search radius of 3.3. We have obtained AO images at a second epoch for five of the candidate companions at Keck and Gemini Obs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0110550","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}