Herschel/PACS: Constraining clumping in the intermediate wind region of OB stars

At present, it is well established that previously accepted mass-loss rates (Ṁ) of luminous OB stars may be overestimated when clumping is neglected. Our Herschel/PACS Far-Infrared (Far-IR) observations of a set of OB stars allow us to improve our knowledge of clumping stratification, constraining c...

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Published in:Proceedings of the International Astronomical Union 2014-06, Vol.9 (S307), p.137-139
Main Authors: Rubio-Díez, M. M., Najarro, F., Sundqvist, J. O., Traficante, A., Puls, J., Calzoletti, L., Herrero, A., Figer, D., Martin-Pintado, J.
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Language:English
Subjects:
Astronomical bodies
Astronomical instruments
Astronomy
Astrophysics
Constraining
Contributed Papers
Estimates
Massive stars
Stars & galaxies
Stratification
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container_end_page 139
container_issue S307
container_start_page 137
container_title Proceedings of the International Astronomical Union
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creator Rubio-Díez, M. M.
Najarro, F.
Sundqvist, J. O.
Traficante, A.
Puls, J.
Calzoletti, L.
Herrero, A.
Figer, D.
Martin-Pintado, J.
description At present, it is well established that previously accepted mass-loss rates (Ṁ) of luminous OB stars may be overestimated when clumping is neglected. Our Herschel/PACS Far-Infrared (Far-IR) observations of a set of OB stars allow us to improve our knowledge of clumping stratification, constraining clumping properties in intermediate wind regions. In this work, better sampled clumping structure estimates are provided for ι Ori, ε Ori and ξ Per as well as an initial estimate of the clumping properties of the wind from τ Sco. These observations will allow us to obtain reliable mass-loss rates and improve our understanding of the wind physics.
doi_str_mv 10.1017/S1743921314006565
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subjects Astronomical bodies
Astronomical instruments
Astronomy
Astrophysics
Constraining
Contributed Papers
Estimates
Massive stars
Stars & galaxies
Stratification
title Herschel/PACS: Constraining clumping in the intermediate wind region of OB stars
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