{"paper":{"title":"X-shooter, NACO, and AMBER observations of the LBV Pistol Star \\footnote{Based on ESO runs 85.D-0182A, 085.D-0625AC}","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Alex Lobel, Andrew Fox (ESO-Chile), Antoine Merand (ESO-Chile), Christophe Martayan (ESO-Chile, Dietrich Baade (ESO-HQ), Fabien Patru (ESO-Chile), Fabrice Martins (GRAAL), Fernando Selman (ESO-Chile), GEPI), Guillaume Montagnier (ESO-Chile), Hugues Sana, Jean-Baptiste Le Bouquin (LAOG), Jean Zorec (IAP), Julien Girard (ESO-Chile), Ronny Blomme, Stan Stefl (ESO-Chile), Thierry Semaan (GEPI), Thomas Rivinius (ESO-Chile), Yves Fremat","submitted_at":"2010-10-16T12:32:00Z","abstract_excerpt":"We present multi-instruments and multi-wavelengths observations of the famous LBV star Pistol Star. These observations are part of a larger program about early O stars at different metallicities. The Pistol star has been claimed as the most massive star known, with 250 solar masses. We present the preliminary results based on X-Shooter spectra, as well as the observations performed with the VLTI-AMBER and the VLT-NACO adaptive optics. The X-shooter spectrograph allows to obtain simultaneously a spectrum from the UV to the K-band with a resolving power of $\\sim$15000. The preliminary results ob"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.3344","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"}