Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-18T14:56:28.294Z Has data issue: false hasContentIssue false
  • English
  • Français

X-ray diagnostics of massive star winds

Published online by Cambridge University Press:  28 July 2017

L. M. Oskinova ,
R. Ignace  and
D. P. Huenemoerder
L. M. Oskinova
Affiliation:
Institut für Physik und Astronomie, Universität Potsdam, Germany
R. Ignace
Affiliation:
Department of Physics and Astronomy, East Tennessee State University, TN 37663, USA
D. P. Huenemoerder
Affiliation:
Massachusetts Institute of Technology, Kavli Institute for Astrophysics and Space Research, 70 Vassar St., Cambridge, MA 02139, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Observations with powerful X-ray telescopes, such as XMM-Newton and Chandra, significantly advance our understanding of massive stars. Nearly all early-type stars are X-ray sources. Studies of their X-ray emission provide important diagnostics of stellar winds. High-resolution X-ray spectra of O-type stars are well explained when stellar wind clumping is taking into account, providing further support to a modern picture of stellar winds as non-stationary, inhomogeneous outflows. X-ray variability is detected from such winds, on time scales likely associated with stellar rotation. High-resolution X-ray spectroscopy indicates that the winds of late O-type stars are predominantly in a hot phase. Consequently, X-rays provide the best observational window to study these winds. X-ray spectroscopy of evolved, Wolf-Rayet type, stars allows to probe their powerful metal enhanced winds, while the mechanisms responsible for the X-ray emission of these stars are not yet understood.

Keywords

stars: atmospheresstars: early-typestars: mass lossstars: windsoutflows
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. 151 - 155
Copyright
Copyright © International Astronomical Union 2017 

References

Cassinelli, J. P. & Olson, G. L., 1979, ApJ, 229, 304 Google Scholar
Cohen, D. H., Wollman, E. E., Leutenegger, M., et al., 2014, MNRAS, 439, 908 Google Scholar
Cranmer, S. R. & Owocki, S. P., 1996, ApJ, 462, 469 CrossRefGoogle Scholar
Dziembowski, W. A. & Pamiatnykh, A. A., 1993, MNRAS, 262, 204 Google Scholar
Feldmeier, A.; Oskinova, L.; Hamann, W.-R., 2003, A&A, 403, 217 Google Scholar
Gayley, K. G., 2016, AdSpR, 58, 719 Google Scholar
Hamann, W.-R., 1981, A&A, 93, 353 Google Scholar
Hamann, W.-R., Brown, J. C., Feldmeier, A., et al., 2001, A&A, 378, 946 Google Scholar
Hervé, A.; Rauw, G.; Nazé, Y., 2013, A&A, 551, 83 Google Scholar
Howarth, I. D. & Stevens, Ian R., 2013, MNRAS, 445, 287 Google Scholar
Huenemoerder, D. P., Oskinova, L. M., Ignace, R., et al., 2012, ApJ, 756, 34 Google Scholar
Huenemoerder, D. P., Gayley, K. G., Hamann, W.-R., et al., 2015, ApJ, 815, 29 Google Scholar
Ignace, R., 2001, ApJ, 549, 119 Google Scholar
Ignace, R.; Oskinova, L. M.; Brown, J. C., 2003, A&A, 408, 353 Google Scholar
Ignace, R., Gayley, K. G., Hamann, W.-R., et al. 2013, ApJ, 775, 29 Google Scholar
Kaper, L., Henrichs, H. F., Nichols, J. S., et al., 1999, A&A, 344, 312 Google Scholar
Lobel, A. & Blomme, R., 2008, ApJ, 678, 408 Google Scholar
Lucy, L. B., 2012, A&A, 544, 120 Google Scholar
Macfarlane, J. J.; Cassinelli, J. P.; Welsh, B. Y., et al., 1991, ApJ, 380, 564 CrossRefGoogle Scholar
Marcolino, W. L. F., Bouret, J.-C., Martins, F., et al., 2009, A&A, 498, 837 Google Scholar
Maryeva, O. V., Chentsov, E. L., Goranskij, V. P., et al., 2016, MNRAS, 458, 491 Google Scholar
Massa, D., Oskinova, L., Fullerton, A. W., et al., 2014, MNRAS, 441, 2173 Google Scholar
Mullan, D. J., 1984, ApJ, 283, 303 Google Scholar
Nazé, Y., Oskinova, L. M., & Gosset, E., 2013, ApJ, 763, 143 Google Scholar
Nichols, J., Huenemoerder, D. P., Corcoran, M. F., et al., 2015, ApJ, 809, 133 Google Scholar
Oskinova, L. M., Clarke, D., & Pollock, A. M. T., 2001, A&A, 378, 21 Google Scholar
Oskinova, L. M., Feldmeier, A., & Hamann, W.-R., 2006, A&A, 372, 313 Google Scholar
Oskinova, L. M., Todt, H., Ignace, R., et al., 2011, MNRAS, 416, 1456 CrossRefGoogle Scholar
Oskinova, L. M., Gayley, K. G., Hamann, W.-R., et al., 2012, ApJ, 747, 25 Google Scholar
Oskinova, L. M., Nazé, Y., Todt, H., et al., 2014, Nature Communications, 5, 4024 CrossRefGoogle Scholar
Owocki, S. P. & Cohen, D. H., 2001, ApJ, 559, 1108 Google Scholar
Puebla, R. E., Hillier, D. J., Zsargó, J., et al., 2015, MNRAS, 456, 2907 Google Scholar
Ramiaramanantsoa, T., Moffat, A. F. J., Chené, A.-N., et al., 2014, MNRAS, 441, 910 Google Scholar
Rauw, G., Hervé, A., Nazé, Y., et al., 2015, A&A, 580, 59 Google Scholar
Shenar, T., Oskinova, L., Hamann, W.-R., et al., 2015, ApJ, 809, 135 Google Scholar
Pallavicini, R., Golub, L., Rosner, R., et al., 1981, ApJ, 248, 279 Google Scholar
Prinja, R. K., 1989, MNRAS, 241, 721 Google Scholar
Waldron, W. L. & Cassinelli, J. P., 2001, ApJ, 548, 45 Google Scholar
Waldron, W. L. & Cassinelli, J. P., 2007, ApJ, 668, 456 Google Scholar