{"paper":{"title":"Toward Understanding the B[e] Phenomenon. VII. AS 386, a single-lined binary with a candidate black hole component","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. A. Arkharov, A. Agishev, A. B. Smith, A. K. Kuratova, A. S. Miroshnichenko, A. V. Kusakin, Ch. T. Omarov, D. B. Caton, D. E. Reichart, E. A. Laag, J. B. Haislip, K. B. Crawford, K. S. Kuratov, N. Efimova, N. Manset, R. B. Perry, R. C. Puetter, R. I. Kokumbaeva, R. J. Rudy, R. L. Hawkins, S. A. Khokhlov, S. D. Chojnowski, S. Klimanov, S. V. Zharikov, T. K. Swift, V M. Larionov, V. V. Kouprianov","submitted_at":"2018-03-11T03:52:12Z","abstract_excerpt":"We report the results of spectroscopic and photometric observations of the emission-line object AS 386. For the first time, we found that it exhibits the B[e] phenomenon and fits the definition of an FS CMa type object. The optical spectrum shows the presence of a B-type star with the following properties: T_ eff = 11000+/-500 K, log L/L_sun = 3.7+/-0.3, a mass of 7+/-1 M_sun, and a distance D = 2.4+/-0.3 kpc from the Sun. We detected regular radial velocity variations of both absorption and emission lines with the following orbital parameters: P_orb = 131.27+/-0.09 days, semi-amplitude K_1 = "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03892","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"}