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Properties of O dwarf stars in 30 Doradus

Published online by Cambridge University Press:  28 July 2017

Carolina Sabín-Sanjulián  and
the VFTS collaboration
Carolina Sabín-Sanjulián
Affiliation:
Departamento de Física y Astronomía, Universidad de La Serena, Av. Cisternas 1200 Norte, La Serena, Chile Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Raúl Bitrán 1305, La Serena, Chile email: [email protected]
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Abstract

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We perform a quantitative spectroscopic analysis of 105 presumably single O dwarf stars in 30 Doradus, located within the Large Magellanic Cloud. We use mid-to-high resolution multi-epoch optical spectroscopic data obtained within the VLT-FLAMES Tarantula Survey. Stellar and wind parameters are derived by means of the automatic tool iacob-gbat, which is based on a large grid of fastwind models. We also benefit from the Bayesian tool bonnsai to estimate evolutionary masses. We provide a spectral calibration for the effective temperature of O dwarf stars in the LMC, deal with the mass discrepancy problem and investigate the wind properties of the sample.

Keywords

Galaxies: Magellanic Clouds Stars: atmospheres Stars: early-type Stars: fundamental parameters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 228 - 232
Copyright
Copyright © International Astronomical Union 2017 

References

Brott, I., et al., 2011, A&A, 530, A115 Google Scholar
Evans, C. J., et al., 2011, A&A, 530, A108 Google Scholar
Grin, N. J., Ramirez-Agudelo, O. H., de Koter, A., et al. 2017, A&A, 600, A82 Google Scholar
Herrero, A., Kudritzki, R. P., Vilchez, J. M., Kunze, D., Butler, K., Haser, S., 1992, A&A, 261, 209 Google Scholar
Köhler, K., et al., 2015, A&A, 573, A71 Google Scholar
Maíz Apellániz, J., et al., 2014, A&A, 564, A63 Google Scholar
Mokiem, M. R., et al., 2007, A&A, 465, 1003 Google Scholar
Mokiem, M. R., et al., 2007, A&A, 473, 603 Google Scholar
Puls, J., Urbaneja, M. A., Venero, R., Repolust, T., Springmann, U., Jokuthy, A., Mokiem, M. R., 2005, A&A, 435, 669 Google Scholar
Ramírez-Agudelo, O. H., et al., 2013, A&A, 560, A29 Google Scholar
Ramírez-Agudelo, O. H., et al., 2015, A&A, 580, A92 Google Scholar
Ramírez-Agudelo, O. H., Sana, H., de Koter, A., et al. 2017, A&A, 600, A81 Google Scholar
Rivero González, J. G., Puls, J., Najarro, F., Brott, I., 2012, A&A, 537, A79 Google Scholar
Rivero González, J. G., Puls, J., Massey, P., Najarro, F., 2012, A&A, 543, A95 Google Scholar
Sabín-Sanjulián, C., et al., 2014, A&A, 564, A39 Google Scholar
Sabín-Sanjulián, C., Simón-Díaz, S., Herrero, A., et al. 2017, A&A, 601, A79 Google Scholar
Sana, H., et al., 2013, A&A, 550, A107 Google Scholar
Santolaya-Rey, A. E., Puls, J., Herrero, A., 1997, A&A, 323, 488 Google Scholar
Schneider, F. R. N., Langer, N., de Koter, A., Brott, I., Izzard, R. G., Lau, H. H. B., 2014, A&A, 570, A66 Google Scholar
Simón-Díaz, S., Castro, N., Herrero, A., Puls, J., Garcia, M., Sabín-Sanjulián, C., 2011, JPhCS, 328, 012021 Google Scholar
Vink, J. S., de Koter, A., Lamers, H. J. G. L. M., 2001, A&A, 369, 574 Google Scholar
Walborn, N. R., et al., 2014, A&A, 564, A40 Google Scholar