http://arxiv.org/abs/2209.06012
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.
Y. Solovyeva, A. Kostenkov, E. Dedov, et. al.
Wed, 14 Sep 22
31/90
Comments: Submitted to Proceedings of Science. Conference “The Multifaceted Universe: Theory and Observations – 2022 (MUTO2022)”, 23-27 May 2022, SAO RAS, Nizhny Arkhyz, Russia
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