{"paper":{"title":"The HIP 79977 debris disk in polarized light","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Baruffolo, A. Bazzon, A. Boccaletti, A. Costille, A. Pavlov, B. Salasnich, C. Dominik, C. Ginski, Ch. Thalmann, D. Gisler, D. Mouillet, E. Lagadec, E. Sissa, F. M\\'enard, F. Wildi, H. M. Schmid, J. H. Girard, J. L. Beuzit, J. Milli, J. Olofsson, J. Pragt, J. Szulagyi, K. Dohlen, M. Feldt, M. Janson, M. Kasper, M. Langlois, M. R. Meyer, M. Suarez, M. Turatto, N. Engler, N. Hubin, P. Puget, Q. Kral, R. Claudi, R. Gratton, R. Roelfsema, R. Siebenmorgen, S. Desidera, S. P. Quanz, S. Udry, T. Fusco, T. Henning","submitted_at":"2017-09-01T18:00:03Z","abstract_excerpt":"We present observations of the known edge-on debris disk around HIP 79977 (HD 146897, F star in Upper Sco, 123 pc), taken with the ZIMPOL differential polarimeter of the SPHERE instrument in the Very Broad Band filter ($\\lambda_c=735$ nm, $\\Delta\\lambda=290$ nm) with a spatial resolution of about 25 mas. We measure the polarization flux along and perpendicular to the disk spine of the highly inclined disk for projected separations between 0.2\" (25 AU) and 1.6\" (200 AU) and investigate the diagnostic potential of such data with model simulations. The polarized flux contrast ratio for the disk i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.00417","kind":"arxiv","version":2},"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"}