{"paper":{"title":"First light of the VLT planet finder SPHERE. I. Detection and characterization of the sub-stellar companion GJ 758 B","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Baruffolo, A. Boccaletti, A. Costille, A. Delboulb\\'e, A.-L. Maire, A.-M. Lagrange, A. Orign\\'e, A. Pavlov, A. Sevin, A. Smette, A. Vigan, A. Zurlo, B. Salasnich, C. Dominik, C. Ginski, C. Gry, C. Moutou, C. Petit, C. Thalmann, D. Le Mignant, D. Mawet, D. Mesa, D. Mouillet, D. Perret, E. Buenzli, E. Giro, E. Hugot, E. Stadler, F. Madec, F. Vakili, F. Wildi, G. Chauvin, G. Salter, H. Beust, H.-M. Schmid, J. Antichi, J.-F. Sauvage, J. Girard, J. Hagelberg, J.-L. Baudino, J.-L. Beuzit, J. Milli, J. Pragt, K. Dohlen, L. Gluck, L. Malo, L. Weber, M. Bonnefoy, M. Carle, M. Feldt, M. Jacquet, M. Janson, M. Kasper, M. Langlois, M. Llored, M. Suarez, M. Turatto, N. Hubin, P. Baudoz, P. Blanchard, P. Martinez, P. Puget, P. Rabou, R. Claudi, R. Galicher, R. Gratton, R. Roelfsema, S. Desidera, S. Rochat, S. Udry, T. Fusco, T. Henning, T. Moulin, V. D'Orazi, Z. Wahhaj","submitted_at":"2015-11-12T21:00:00Z","abstract_excerpt":"GJ758 B is a brown dwarf companion to a nearby (15.76 pc) solar-type, metal-rich (M/H = +0.2 dex) main-sequence star (G9V) that was discovered with Subaru/HiCIAO in 2009. From previous studies, it has drawn attention as being the coldest (~600K) companion ever directly imaged around a neighboring star. We present new high-contrast data obtained during the commissioning of the SPHERE instrument at the VLT. The data was obtained in Y-, J-, H-, and Ks-bands with the dual-band imaging (DBI) mode of IRDIS, providing a broad coverage of the full near-infrared (near-IR) range at higher contrast and b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04076","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"}