{ "id": "2209.06012", "version": "v1", "published": "2022-09-13T14:06:31.000Z", "updated": "2022-09-13T14:06:31.000Z", "title": "Wind parameters of the new LBV in NGC1156", "authors": [ "Y. Solovyeva", "A. Kostenkov", "E. Dedov", "A. Vinokurov" ], "comment": "Submitted to Proceedings of Science. Conference \"The Multifaceted Universe: Theory and Observations - 2022 (MUTO2022)\", 23-27 May 2022, SAO RAS, Nizhny Arkhyz, Russia", "categories": [ "astro-ph.SR", "astro-ph.GA" ], "abstract": "In this work we present the spectrum modeling results for the newly discovered luminous blue variable (LBV) in the NGC 1156 galaxy. Extended atmosphere models were calculated using the non-LTE code CMFGEN. We have obtained the luminosity of the discovered LBV $L\\simeq (1.6\\pm0.2) \\times 10^{5} L_{\\odot}$, effective temperature $T_{\\text{eff}}=7.9\\pm0.4$ kK and mass-loss rate $\\dot{M}f^{-0.5}= (8.2\\pm1.0) \\times 10^{-4} M_{\\odot}\\text{yr}^{-1}$. The hydrogen abundance in the wind is $\\approx20\\,$% for the metallicity $Z=0.5 Z_{\\odot}$ of the host galaxy.", "revisions": [ { "version": "v1", "updated": "2022-09-13T14:06:31.000Z" } ], "analyses": { "keywords": [ "wind parameters", "non-lte code cmfgen", "mass-loss rate", "spectrum modeling results", "host galaxy" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }