{"paper":{"title":"Review of small-angle coronagraphic techniques in the wake of ground-based second-generation adaptive optics systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Anthony Boccaletti, Ben Oppenheimer, Bertrand Mennesson, Bruce Macintosh, Christian Marois, Christophe V\\'erinaud, David Mouillet, Dimitri Mawet, Dmitri Savransky, Eugene Serabyn, Harrisson Barrett, James K. Wallace, Jean-Luc Beuzit, John Krist, John Trauger, Julien Girard, Julien Milli, Laurent Mugnier, Laurent Pueyo, Lisa Poyneer, Markus Kasper, Naoshi Murakami, Nicolas Devaney, Olivier Guyon, Peter Lawson, Pierre Baudoz, Ruslan Belikov, Szymon Gladysz, Wesley Traub","submitted_at":"2012-07-23T18:42:47Z","abstract_excerpt":"Small-angle coronagraphy is technically and scientifically appealing because it enables the use of smaller telescopes, allows covering wider wavelength ranges, and potentially increases the yield and completeness of circumstellar environment - exoplanets and disks - detection and characterization campaigns. However, opening up this new parameter space is challenging. Here we will review the four posts of high contrast imaging and their intricate interactions at very small angles (within the first 4 resolution elements from the star). The four posts are: choice of coronagraph, optimized wavefro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.5481","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"}