Are the Stellar Winds in IC1613 stronger than expected?
A. Herrero, M. Garcia, K. Uytterhoeven, F. Najarro, D.J. Lennon, S., Sim\'on-D\'iaz, N. Castro, J. Puls, J.S. Vink, M.A. Urbaneja, and A. de Koter
TL;DR
This study analyzes three massive stars in IC 1613, revealing unexpectedly strong stellar winds that challenge existing stellar atmosphere theories, based on spectroscopic data analyzed with advanced modeling tools.
Contribution
First detailed spectroscopic analysis of massive stars in IC 1613 showing stronger winds than predicted, questioning current stellar atmosphere models.
Findings
Two Of stars exhibit unexpectedly strong winds
One star identified as a possible LBV
Stars show contamination by CNO products
Abstract
In this poster we present the results of our analyses of three early massive stars in IC 1613, whose spectra have been observed with VIMOS and analyzed with CMFGEN and FASTWIND. One of the targets resulted a possible LBV and the other two are Of stars with unexpectedly strong winds. The Of stars seem to be strongly contaminated by CNO products. Our preliminary results may represent a challenge for the theory of stellar atmospheres, but they still have to be confirmed by the analysis of more objects and a more complete coverage of the parameter space.
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