Advertisement

A Coherent Picture of the Innermost Parsec of the Galaxy

  • Farhad Yusef-Zadeh
  • Mark Wardle
Part of the Astrophysics and Space Science Library book series (ASSL, volume 180)

Abstract

This review attempts to provide a framework within which recent radio and infrared results related to the inner parsec of the Galaxy can be interpreted. The unifying theme is the outflow from the Galactic center. This wind arises predominantly from the IRS 16 complex which lies within 1" of a massive black hole candidate. We present compelling morphological and, in some cases, kinematic evidence for the interaction of this outflow i) with a mass-losing supergiant, known as IRS 7, located within the inner light year of the dynamical center of the Galaxy, ii) with the continuous flow of ionized gas associated with Sgr A West which is orbiting the Galactic center, iii) with t he massive black hole candidate which is thought to be coincident with a nonthermal compact radio source, known as Sgr A*, and iv) with the circumnuclear molecular disk which engulfs the inner few parsecs of the Galactic center.

Keywords

Black Hole Radio Source Mass Loss Rate Galactic Center Coherent Picture 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Aitken, D.K., Gezari, D., Smith, C.H., McCaughrean, M. and Roche, P.F. 1991, Ap.J., 419, 419.ADSCrossRefGoogle Scholar
  2. Allen, D.A., Hyland, A.R. and Hillier, D.J. 1990, Mon.Not.R.astr.Soc., 244, 706.ADSGoogle Scholar
  3. Allen, D.A., and Sanders, R.H. 1986, Nature, 319, 191.ADSCrossRefGoogle Scholar
  4. Backer, D.C. and Sramek, R.A. 1982, Ap.J., 260, 512.ADSCrossRefGoogle Scholar
  5. Becklin, E.E., Dinerstein, H., Galley, I., Werner, M.W., and Jones, B. 1987, in The Galactic Center: proceedings of the Symposium Honoring C.H. Townes, ed. D.C. Backer (New York:AIP), p162.Google Scholar
  6. Becklin, E.E., Galley, I., and Werner, M.W., 1982, Ap.J., 258, 135.ADSCrossRefGoogle Scholar
  7. Brown, R.L. and Liszt, J.H. 1984, Ann.Rev.Astron.Astrophys., 22, 223.ADSCrossRefGoogle Scholar
  8. Chandrasekhar, S., 1961, Hydrodynamic and Hydromagnetic Stability (Oxford: Oxford University Press).zbMATHGoogle Scholar
  9. DePoy, D.L., Gatley, I., and McLean, I.S., 1989, IAU Symposium No. 136, The Center of the Galaxy, ed. M. Morris, p411.Google Scholar
  10. Dressler, A., and Richstone, D.O. 1988, Ap.J., 324, 701.ADSCrossRefGoogle Scholar
  11. Eckart, A., Hoffman, R., Duhoux, P., Genzel, R., and Drapatz, S. 1991, The Messenger, 65, 1.ADSGoogle Scholar
  12. Ekers, R.D., van Gorkom, J.H., Schwartz, U.J. and Goss, W.M. 1983, Astr.Astrophys., 122, 143.ADSGoogle Scholar
  13. Gatley, I., Jones, T.J., Hyland, A.R., Beattie, D.H., Lee, T.J., 1984 M.N.R.A.S., 210, 565.ADSGoogle Scholar
  14. Gatley, I., Jones, T.J., Hyland, A.R., Wade, R., Geballe, T.R., and Krisciumas, E. 1986, M.N.R.A.S., 222, 562.Google Scholar
  15. Geballe, T.R., Krisciunas, K., Bailey, J.A., Wade, R. 1991, Ap.J.Lett. 370, L73.ADSCrossRefGoogle Scholar
  16. Geballe, T.R., Krisciunas, K., Lee, T.J., Gatley, I. Wade, R.,et al. 1984, Ap.J., 284, 118.ADSCrossRefGoogle Scholar
  17. Geballe, T.R., Wade, R., Krisciunas, K., Gatley, I. and Bird, M.C. 1987, Ap.J. 320, 562.ADSCrossRefGoogle Scholar
  18. Genzel, R. 1989, IA U Symposium No. 136, The Center of the Galaxy, ed. M. Morris, p393.Google Scholar
  19. Genzel, R. and Townes, C.H. 1987, Ann.Rev.Astr.Ap., 25, 377.ADSCrossRefGoogle Scholar
  20. Gezari, D., and Yusef-Zadeh, F., 1990, in Astrophysics with Infrared Arrays, ed. R. Elston, p214.Google Scholar
  21. Hall, D.N.B., Kleinmann, S.G. and Scoville, N.Z. 1982, Ap.J.Lett. Google Scholar
  22. Hunter Jr, J.H., and Whitaker, R.W. 1990, Ap. J. Supp. 71, 777.ADSCrossRefGoogle Scholar
  23. Jansky, K.G. 1932, Proc. IRE, 28, 1920.CrossRefGoogle Scholar
  24. Jauncey, D.L. et al. 1991, A.J., 98, 44.ADSCrossRefGoogle Scholar
  25. Killeen, N.E.B., Lo, N.Y., Sault, R.J., and Crutcher, R.M., 1989, IAU Symposium 140, Galactic and Extragalactic Magnetic Fields., eds. R.Beck, P.P. Kronberg and R. Wielebinski, p382.Google Scholar
  26. Kormendy, J. 1988, Ap.J., 325, 128.ADSCrossRefGoogle Scholar
  27. Krabbe, A., Genzel, R., Drapatz, S. and Rotaciuc, V. 1991, Ap.J.Lett., in press. LacyGoogle Scholar
  28. J.H., Achtermann, J.M. and Serabyn, E. 1991, Ap.J.Lett., in press.Google Scholar
  29. Lacy, J.H., Townes, C.H., Geballe, T.R., and Hollenbach, D.J. 1980, Ap.J., 262, 120.ADSCrossRefGoogle Scholar
  30. Lo, K.Y. 1989, IAU Symposium, No. 136, The Center of the Galaxy, ed. M. Morris, p527.Google Scholar
  31. McGinn, M.T., Becklin, E.E., Sellgren, K., Hall, D.N.B. 1989, Ap.J., 338, 824.ADSCrossRefGoogle Scholar
  32. Melia, F. 1991, Ap.J.Lett., submitted.Google Scholar
  33. Morris, M. and Yusef-Zadeh, F. 1987, in The Galactic Center: proceedings of the Symposium Honoring C.H. Townes, ed. D.C. Backer (New York:AIP), p127.Google Scholar
  34. Ozernoy, L. 1989, Symposium No. 136, The Center of the Galaxy, ed. M. Morris, p555.Google Scholar
  35. Pedlar, A., Anantharamiah, K.R., Ekers, R.D., Goss, W.M., van Gorkom, J.H., Schwarz, U.J., and Zhao, J. 1989, Ap.J., 342, 769.ADSCrossRefGoogle Scholar
  36. Quinn, P.J. and Sussman, G.J. 1985, Ap.J., 288, 377.ADSCrossRefGoogle Scholar
  37. Rieke, G.H. and Rieke, M.J. 1989, Ap.J.Lett., 344, L5.ADSCrossRefGoogle Scholar
  38. Roberts, D.A., Goss, W.M. and van Gorkom, J.H. 1991, AP.J.Lett., 366, L15.ADSCrossRefGoogle Scholar
  39. Sellgren, K., McGinn, M.T., Becklin, E.E. and Hall, D.N.B. 1990, Ap.J., 359, 112.ADSCrossRefGoogle Scholar
  40. Serabyn, E., Lacy, J.H., and Achtermann, J.M. 1991, Ap.J., 378, 557.ADSCrossRefGoogle Scholar
  41. Serabyn, E., Lacy, J.H., Townes, C.H., and Bharat, R. 1988, Ap.J., 326, 171.Google Scholar
  42. Tollestrup, E.V., Capps, R.W. and Becklin, E.E. 1989, A.J., 98, 204.ADSCrossRefGoogle Scholar
  43. van Gorkom, J.H., Schwarz, U.J., and Bregman, J.D. 1984, in IAU Symposium 106, the Milky Way Galaxy, ed. H.van Woerdon, and A.J. Allen (Dordrecht:Reidel), p371.Google Scholar
  44. Wardle, M. and Yusef-Zadeh, F., 1991, Ap.J.Lett., in press.Google Scholar
  45. Yusef-Zadeh, F., and Melia, F. 1991, Ap.J.Lett., in press.Google Scholar
  46. Yusef-Zadeh, F. and Morris, M. 1987, Ap.J., 322, 721Google Scholar
  47. Yusef-Zadeh, F. and Morris, M. 1991, Ap.J.Lett., 371, L59.ADSCrossRefGoogle Scholar
  48. Yusef-Zadeh, F., Morris, M. and Ekers, R.D. 1989, IAU Symposium No. 136, The Center of the Galaxy, ed. M. Morris, p443.Google Scholar
  49. Yusef-Zadeh, F., Morris, M. and Ekers, R.D. 1990, Nature, 348, 45.ADSCrossRefGoogle Scholar
  50. Zhao, J.H., Ekers, R., Goss, M., Lo, K.Y. Narayan, R. 1989, IAU Symposium No. 136, The Center of the Galaxy, ed. M. Morris, p535.Google Scholar
  51. Zhao, J.H., Goss, W.M., Lo, K.Y., and Ekers, R.D. 1991, Nature, 354, 46.ADSCrossRefGoogle Scholar
  52. Zhao, J.H., Roberts. D., Goss, W.M., Frail, D.A. and Lo, K.Y. 1991, IAU Circular no. 5210. Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • Farhad Yusef-Zadeh
    • 1
  • Mark Wardle
    • 1
  1. 1.Department of Physics and AstronomyNorthwestern UniversityUSA

Personalised recommendations