DOI QR코드

DOI QR Code

Interactions in Massive Colliding Wind Binaries

  • Corcoran, Michael F.
  • Received : 2011.12.29
  • Accepted : 2012.02.16
  • Published : 2012.03.15

Abstract

There are observational difficulties determining dynamical masses of binary star components in the upper HR diagram both due to the scarcity of massive binary systems and spectral and photometric contamination produced by the strong wind outflows in these systems. We discuss how variable X-ray emission in these systems produced by wind-wind collisions in massive binaries can be used to constrain the system parameters, with application to two important massive binaries, Eta Carinae and WR 140.

Keywords

stars: binaries;X-ray: stars;stars (individual): Eta Carinae;stars (individual): WR 140

References

  1. Abbott DC, The terminal velocities of stellar winds from early-type stars, ApJ, 225, 893-901 (1978). http://dx.doi.org/ 10.1086/156554 https://doi.org/10.1086/156554
  2. Bradt HV, Rothschild RE, Swank JH, X-ray timing explorer mission, A&AS, 97, 355-360 (1993).
  3. Corcoran MF, Hamaguchi K, Pittard JM, Russell CMP, Owocki SP, et al., Recent X-ray variability of $\eta$ carinae: the quick road to recovery, ApJ, 725, 1528-1535 (2010). http://dx.doi.org/10.1088/0004-637X/725/2/1528 https://doi.org/10.1088/0004-637X/725/2/1528
  4. Davidson K, Humphreys RM, Eta Carinae and its environment, ARA&A, 35, 1-32 (1997). http://dx.doi.org/ 10.1146/annurev.astro.35.1.1 https://doi.org/10.1146/annurev.astro.35.1.1
  5. Dougherty SM, Beasley AJ, Claussen MJ, Zauderer BA, Bolingbroke NJ, High-resolution radio observations of the colliding-wind binary WR 140, ApJ, 623, 447-459 (2005). http://dx.doi.org/10.1086/428494 https://doi.org/10.1086/428494
  6. Fahed R, Moffat AFJ, Zorec J, Eversberg T, Chene AN, et al., Spectroscopy of the archetype colliding-wind binary WR 140 during the 2009 January periastron passage, MNRAS, 418, 2-13 (2011). http://dx.doi.org/10.1111/j.1365-2966.2011.19035.x https://doi.org/10.1111/j.1365-2966.2011.19035.x
  7. Hillier DJ, Davidson K, Ishibashi K, Gull T, On the nature of the central source in $\eta$ Carinae, ApJ, 553, 837-860 (2001). http://dx.doi.org/10.1086/320948 https://doi.org/10.1086/320948
  8. Ishibashi K, Corcoran MF, Davidson K, Swank JH, Petre R, et al., Recurrent X-ray emission variations of $\eta$ Carinae and the binary hypothesis, ApJ, 524, 983-987 (1999). http://dx.doi.org/10.1086/307859 https://doi.org/10.1086/307859
  9. Leyder J-C, Walter R, Rauw G, Hard X-ray identification of $\eta$ Carinae and steadiness close to periastron, A&A, 524, A59 (2010). http://dx.doi.org/10.1051/0004-6361/ 201014316 https://doi.org/10.1051/0004-6361/201014316
  10. Parkin ER, Pittard JM, Corcoran MF, Hamaguchi K, Stevens IR, 3D modelling of the colliding winds in $\eta$ Carinae-- evidence for radiative inhibition, MNRAS, 394, 1758-1774 (2009). http://dx.doi.org/10.1111/j.1365-2966.2009. 14475.x https://doi.org/10.1111/j.1365-2966.2009.14475.x
  11. Pfeiffer RJ, Pachoulakis I, Koch RH, Stickland DJ, The winds of hot, close binaries. Paper 1: Y Cygni (HD 198846), Obs, 114, 297-308 (1994).
  12. Pfeiffer RJ, Pachoulakis I, Koch RH, Stickland DJ, The winds of hot close binaries. Paper 3: HD 159176, Obs, 117, 301-309 (1997).
  13. Pittard JM, Corcoran MF, In hot pursuit of the hidden companion of eta Carinae: an X-ray determination of the wind parameters, A&A, 383, 636-647 (2002). http://dx.doi.org/10.1051/0004-6361:20020025 https://doi.org/10.1051/0004-6361:20020025
  14. Russell CMP, Corcoran MF, Okazaki AT, Madura TI, Owocki SP, X-ray modeling of Eta Carinae & WR140 from SPH simulations, in Proceedings of the 39th Liege Astrophysical Colloquium, eds. Rauw G, De Becker M, Naze Y, Vreux J-M, Williams P (Bulletin de la Societe Royale des Sciences de Liege, Liege, Belgium, 2011), 719.
  15. Stevens IR, Blondin JM, Pollock AMT, Colliding winds from early-type stars in binary systems, ApJ, 386, 265-287 (1992). http://dx.doi.org/10.1086/171013 https://doi.org/10.1086/171013