Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-27T06:23:21.508Z Has data issue: false hasContentIssue false
  • English
  • Français

Radio Detection of Colliding Wind Binaries

Published online by Cambridge University Press:  05 March 2013

Paula Benaglia ,
Bärbel Koribalski  and
Juan F. Albacete Colombo
Paula Benaglia*
Affiliation:
Instituto Argentino de Radioastronomía, C.C. 5, Villa Elisa (1894), Argentina Facultad de Ciencias Astronómicas y Geofísicas, UNLP, 1900 La Plata, Argentina
Bärbel Koribalski
Affiliation:
Australia Telescope National Facility, CSIRO, Epping NSW 1710, Australia
Juan F. Albacete Colombo
Affiliation:
Facultad de Ciencias Astronómicas y Geofísicas, UNLP, 1900 La Plata, Argentina Osservatorio Astronomico di Palermo, 90134 Palermo, Italy
*
ECorresponding author. Email: [email protected]
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.

Four massive, early-type stars, three of which are confirmed binaries, have been observed with the Australia Telescope Compact Array at 1.4, 2.4, 4.8, and 8.6 GHz. The earliest star cataloged so far, HD 93129A, was also observed at 17.8 and 24.5 GHz. Here we present an analysis of the spectra as well as the structure of the stellar systems. All four spectra show clear evidence of non-thermal emission, indicative of a binary system with a colliding wind region. We discuss the magnetic field of the emitting region of HD 93129A and make predictions on the radiation at high energies. Archive X-ray observations towards the target sources are also investigated and interpreted in the light of the non-thermal emission detected.

Keywords

stars: early-typestars: individual (CD-47 4551, HD 93129A, HD 124314, HD 150136)stars: mass lossstars: winds, outflowsradio continuum: stars
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 23 , Issue 1 , 2006 , pp. 50 - 63
Copyright
Copyright © Astronomical Society of Australia 2006

References

Albacete Colombo, J. F., Méndez, M., & Morrel, N. I. 2003, MNRAS, 346, 704 Google Scholar
Bell, A. R. 1978, MNRAS, 182, 147 Google Scholar
Benaglia, P., Cappa, C. E., & Koribalski, B. S. 2001, A&A, 372, 952 Google Scholar
Benaglia, P., & Koribalski, B. 2004, A&A, 416, 171 Google Scholar
Benaglia, P., & Koribalski, B. 2006, in Massive Stars in Interacting Binaries (Eds. Moffat, A. F. J., & St Louis, N.) in press.Google Scholar
Benaglia, P., & Romero, G. E. 2003, A&A, 399, 1121 Google Scholar
Berghofer, T. W., Schmitt, J. H. M. M., Danner, R., & Cassinelli, J. P. 1997, A&A, 322, 167 Google Scholar
Bieging, J. H., Abbott, D. C., & Churchwell, E. B. 1989, ApJ, 340, 518 Google Scholar
Blomme, R., van Loo, S., De Becker, M., et al. 2005, A&A, 436, 1033 Google Scholar
Chen, W., & White, R. L. 1991, ApJ, 381, L63 Google Scholar
Chen, W., & White, R. L. 1994, Ap&SS, 221, 259 Google Scholar
Chlebowski, T., & Garmany, C. D. 1991, ApJ, 368, 241 CrossRefGoogle Scholar
Cohen, D. H., de Messieres, G. E., MacFarlane, J. J. et al. 2003, ApJ, 586, 495 Google Scholar
Contreras, M. E., Rodriguez, L. F., Tapia, M., et al. 1997, ApJ, 488, L153 CrossRefGoogle Scholar
De Becker, M., Rauw, G., Blomme, R., et al. 2004, A&A, 420, 1061 Google Scholar
DeGioia-Eastwood, K., Throop, H., Walker, G., & Cudworth, K. M. 2001, ApJ, 549, 578 Google Scholar
de Wit, W. J., Testi, L., Palla, F., et al. 2004, A&A, 425, 937 Google Scholar
Donati, J.-F., Babel, J., Harries, T. J., et al. 2002, MNRAS, 333, 55 Google Scholar
Donati, J.-F., Wade, G. A., Babel, J., et al. 2001, MNRAS, 326, 1265 Google Scholar
Done, C., Mulchaey, J. S., Mushotzky, R. F., & Arnaud, K. A. 1992, ApJ, 395, 275 CrossRefGoogle Scholar
Dougherty, S. M., Beasley, A. J., Coker, R. F., & Corcoran, M. F. 2005, ApJ, 623, 447 Google Scholar
Dougherty, S. M., Pittard, J. M., Kasian, L., et al. 2003, A&A, 409, 217 Google Scholar
Dougherty, S. M., Williams, P. M., van der Hucht, K. A., et al. 1996, MNRAS, 280, 963 Google Scholar
Eichler, D., & Usov, V. 1993, ApJ, 402, 271 CrossRefGoogle Scholar
Evans, N. R., Schlegel, E. M., Waldron, W. L., et al. 2004, ApJ, 612, 1065 CrossRefGoogle Scholar
Evans, N. R., Seward, F. D., Krauss, M. I., et al. 2003, ApJ, 589, 509 CrossRefGoogle Scholar
Feast, M. W., Thackeray, A. D., & Wesselink, A. J. 1954, MmRAS, 67, 51 Google Scholar
Herbst, W., & Havlen, R. J. 1977, A&AS, 30, 279 Google Scholar
Howarth, I. D., Siebert, K. W., Hussain, G. A. J., & Prinja, R. K. 1997, MNRAS, 284, 265 CrossRefGoogle Scholar
Jardine, M., Collier Cameron, A., Donati, J.-F., & Pointer, G. R. 2001, MNRAS, 324, 201 Google Scholar
Kahn, S. M., Leutenegger, M. A., Cottam, J., et al. 2001, A&A, 365, L312 Google Scholar
Longair, M. S. 1997, High Energy Astrophysics, Vol. 2, p. 281 (Cambridge: Cambridge University Press)Google Scholar
Lucy, L. B., & White, R. L. 1980, ApJ, 241, 300 Google Scholar
Maíz-Apellániz, J., Úbeda, L., Walborn, N.R., & Nelan, E.P. 2006, in Resolved Stellar Populations, ASP Conf. Ser. (Eds Valls-Gabaud, D., & Chávez, M.) in press (San Francisco: ASP)Google Scholar
Maíz-Apellániz, J., Walborn, N. R., Galué, H. A., & Wei, L. H. 2004, ApJS, 151, 103 Google Scholar
Martins, F., Schaerer, D., & Hillier, D. J. 2005, A&A, 436, 1049 Google Scholar
Mason, B., Gies, D. R., Hartkopf, W. I., et al. 1998, AJ, 115, 821 Google Scholar
Miley, G. K. 1980, ARA&A, 18, 165 Google Scholar
Moran, J. P., Davis, R. J., Spencer, R. E., et al. 1989, Nat, 340, 449 Google Scholar
Morrison, R., & McCammon, D. 1983, ApJ, 270, 119 Google Scholar
Nelan, E. P., Walborn, N. R., Wallace, D. J., et al. 2004, ApJ, 128, 323 CrossRefGoogle Scholar
Niemela, V. S., & Gamen, R. C. 2005, MNRAS, 356, 974 CrossRefGoogle Scholar
Niemela, V. S., Gamen, R. C., Solivella, G., Benaglia, P., et al. 2006, submittedGoogle Scholar
O'Connor, E. P., Dougherty, S. M., Pittard, J. M., & Williams, P. M. 2005, in Massive Stars and High-Energy Emission in OB Associations, Proc JENAM (Eds. Rauw, G., Nazé, Y., Blomme, R., & Gosset, E.) p. 81 Google Scholar
Pachlolczyk, A. G. 1970, Radio Astrophysics (San Francisco: Freeman)Google Scholar
Pollock, A. M. T. 1987, A&A, 171, 135 Google Scholar
Prinja, R. K., Barlow, M. J., & Howarth, I. D. 1990, ApJ, 361, 607 Google Scholar
Rauw, G., Sana, H., Gosset, E. et al. 2005, in Massive Stars and High-Energy Emission in OB Associations, Proc JENAM (Eds. Rauw, G., Nazé, Y., Blomme, R., & Gosset, E.), p. 85 Google Scholar
Repolust, T., Puls, J., & Herrero, A. 2004, A&A, 415, 349 Google Scholar
Romero, G. E., Benaglia, P., & Torres, D. F. 1999, A&A, 348, 868 Google Scholar
Shull, J. M., & van Steenberg, M. E. 1985, ApJ, 294, 599 Google Scholar
Skinner, S. L., Itoh, M., Nagase, F., & Zhekov, S. A. 1999, ApJ, 524, 394 Google Scholar
Skinner, S. L., Zhekov, S. A., Palla, F., & Barbosa, C. L. D. R. 2005, MNRAS, 361, 191 Google Scholar
Taresch, G., Kudritzki, R. P., Hurwitz, M., et al. 1997, A&A, 321, 531 Google Scholar
Torres, D.F., Romero, G.E., Dame, T.M., Combi, J.A., & Butt, Y. M. 2003, PhR, 382, 303 Google Scholar
van Loo, S. 2005, Ph.D. Thesis (Leuven: University of Leuven)Google Scholar
Vink, J. S., de Koter, A., & Lamers, H. J. G. L. M. 2000, A&A, 362, 295 Google Scholar
Walborn, N. R. 1973, ApJ, 179, 517 Google Scholar
Walborn, N. R. 1982, AJ, 87, 1300 Google Scholar
Walborn, N. R. 1995, RMxAA, 2, 51 Google Scholar
Walborn, N. R., Howarth, I. D., Lennon, D. J., et al. 2002, AJ, 123, 2754 Google Scholar
Wegner, W. 1994, MNRAS, 270, 229 CrossRefGoogle Scholar
White, R. L. 1985, ApJ, 289, 698 Google Scholar
Williams, P. J. S. 1963, Nat 200, 56 Google Scholar
Wright, A. E., & Barlow, M. J. 1975, MNRAS, 170, 41 CrossRefGoogle Scholar
Yamaguchi, N., Mizuno, N., Moriguchi, Y. et al. 1999, PASJ, 51, 765 Google Scholar