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The clumped winds of the most massive stars

Published online by Cambridge University Press:  29 August 2024

Sarah A. Brands Open the ORCID record for Sarah A. Brands [Opens in a new window] ,
Alex de Koter ,
Joachim M. Bestenlehner ,
Paul A. Crowther ,
Jon O. Sundqvist ,
Joachim Puls ,
Saida M. Caballero-Nieves ,
Michael Abdul-Masih ,
Florian A. Driessen  and
Miriam García
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Sarah A. Brands*
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands
Alex de Koter
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Joachim M. Bestenlehner
Affiliation:
Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH, UK
Paul A. Crowther
Affiliation:
Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH, UK
Jon O. Sundqvist
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Joachim Puls
Affiliation:
LMU München, Universitätssternwarte, Scheinerstr. 1, 81679 München, Germany
Saida M. Caballero-Nieves
Affiliation:
Department of Aerospace, Physics and Space Sciences, Florida Institute of Technology, 150 W. University Boulevard, Melbourne, FL 32901, USA
Michael Abdul-Masih
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium European Southern Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
Florian A. Driessen
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Miriam García
Affiliation:
Centro de Astrobiología, CSIC-INTA. Crtra. de Torrejón a Ajalvir km 4. 28850 Torrejón de Ardoz (Madrid), Spain
Sam Geen
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands
Götz Gräfener
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
Calum Hawcroft
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Lex Kaper
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands
Zsolt Keszthelyi
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands
Norbert Langer
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
Hugues Sana
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Fabian R. N. Schneider
Affiliation:
Heidelberger Institut für Theoretische Studien, Schloss-Wolfsbrunnenweg 35, 69118 Heidelberg, Germany Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr. 12-14, 69120 Heidelberg, Germany
Tomer Shenar
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands
Jorick S. Vink
Affiliation:
Armagh Observatory, College Hill, Armagh BT61 9DG, UK
*
email: [email protected]
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Abstract

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The core of the cluster R136 in the Large Magellanic Cloud hosts the most massive stars known. The high mass-loss rates of these stars strongly impact their surroundings, as well as the evolution of the stars themselves. To quantify this impact accurate mass-loss rates are needed, however, uncertainty about the degree of inhomogeneity of the winds (‘wind clumping’), makes mass-loss measurements uncertain. We combine optical and ultraviolet HST/STIS spectroscopy of 56 stars in the core of R136 in order to put constraints on the wind structure, improving the accuracy of the mass-loss rate measurements. We find that the winds are highly clumped, and use our measured mass-loss rates to test theoretical predictions. Furthermore we find, for the first time, tentative trends in the wind-structure parameters as a function of mass-loss rate, suggesting that the winds of stars with higher mass-loss rates are less clumped than those with lower mass-loss rates.

Keywords

stars: early-typestars: atmospheresstars: mass lossgalaxies: Magellanic Clouds
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S361: Massive Stars Near and Far , May 2022 , pp. 184 - 189
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

Abdul-Masih, M., et al. 2021, A&A, 651, A96 Google Scholar
Bestenlehner, J. M., et al. 2020, MNRAS, 499, 1918 Google Scholar
Björklund, R., Sundqvist, J. O., Puls, J., & Najarro, F. 2021, A&A, 648, A36 CrossRefGoogle Scholar
Bouret, J. C., Hillier, D. J., Lanz, T., & Fullerton, A. W. 2012, A&A, 544, A67 Google Scholar
Bouret, J. C., Lanz, T., & Hillier, D. J. 2005, A&A, 438, 301 CrossRefGoogle Scholar
Carneiro, L. P., Puls, J., Sundqvist, J. O., & Hoffmann, T. L. 2016, A&A, 590, A88 Google Scholar
Charbonneau, P. 1995, ApJS, 101, 309 Google Scholar
Cohen, D. H., Leutenegger, M. A., Wollman, E. E., Zsargó, J., Hillier, D. J., Townsend, R. H. D., & Owocki, S. P. 2010, MNRAS, 405, 2391 Google Scholar
Crowther, P. A., Schnurr, O., Hirschi, R., Yusof, N., Parker, R. J., Goodwin, S. P., & Kassim, H. A. 2010, MNRAS, 408, 731 Google Scholar
Crowther, P. A., et al. 2016, MNRAS, 458, 624 Google Scholar
Evans, C. J., et al. 2011, A&A, 530, A108 Google Scholar
Fullerton, A. W., Massa, D. L., & Prinja, R. K. 2006, ApJ, 637, 1025 Google Scholar
Hawcroft, C., et al. 2021, A&A, 655, A67 CrossRefGoogle Scholar
Krtička, J., & Kubát, J. 2018, A&A, 612, A20 CrossRefGoogle Scholar
Langer, N. 2012, ARA&A, 50, 107 Google Scholar
Mokiem, M. R., de Koter, A., Puls, J., Herrero, A., Najarro, F., & Villamariz, M. R. 2005, A&A, 441, 711 CrossRefGoogle Scholar
Puls, J., Markova, N., Scuderi, S., Stanghellini, C., Taranova, O. G., Burnley, A. W., & Howarth, I. D. 2006, A&A, 454, 625 CrossRefGoogle Scholar
Puls, J., Urbaneja, M. A., Venero, R., Repolust, T., Springmann, U., Jokuthy, A., & Mokiem, M. R. 2005, A&A, 435, 669 CrossRefGoogle Scholar
Puls, J., Vink, J. S., & Najarro, F. 2008, A&A Rev., 16, 209 Google Scholar
Rauw, G., et al. 2015, ApJS, 221, 1 Google Scholar
Rivero González, J. G., Puls, J., Massey, P., & Najarro, F. 2012, A&A, 543, A95 CrossRefGoogle Scholar
Santolaya-Rey, A. E., Puls, J., & Herrero, A. 1997, A&A, 323, 488 Google Scholar
Sundqvist, J. O., & Puls, J. 2018, A&A, 619, A59 Google Scholar
Sundqvist, J. O., Puls, J., Feldmeier, A., & Owocki, S. P. 2011, A&A, 528, A64 Google Scholar
Vink, J. S., de Koter, A., & Lamers, H. J. G. L. M. 2000, A&A, 362, 295 Google Scholar
Vink, J. S., de Koter, A., & Lamers, H. J. G. L. M. 2001, A&A, 369, 574 CrossRefGoogle Scholar
Šurlan, B., Hamann, W. R., Kubát, J., Oskinova, L. M., & Feldmeier, A. 2012, A&A, 541, A37 CrossRefGoogle Scholar
Weaver, R., McCray, R., Castor, J., Shapiro, P., & Moore, R. 1977, The Astrophysical Journal, 218, 377 Google Scholar
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