Jets Associated with Young Stars

  • T. P. Ray
Part of the NATO ASI Series book series (ASIC, volume 481)

Abstract

It is almost half a century since the discovery by Herbig (1951) and Haro (1952) of the enigmatic nebulosities that bear their name. It was clear from very early on that HH objects were associated in some way with star formation and, in fact, it was originally suggested that they were actual sites were stars were made (Herbig, 1970). To this day, popular texts, even such erudite volumes as the Cambridge Atlas of Astronomy, still make statements like “… we also find in this class stars called Herbig-Haro objects, which are stars in the process of being formed”! of course we now know this idea to be incorrect and as early as 1958 (Osterbrock 1958) it was proposed that HH objects might be the result of an energetic outflow from a young star. Observational support for this idea, however, was lacking until Schwartz (1975) noted the resemblance between the spectra of HH objects and those of knots in supernova remnants. This led him to propose that HH objects were due to radiatively cooled shocks driven by supersonic winds from young stars. Work by Raymond (1976, 1979), Dopita (1978) and others confirmed this suggestion and they found good agreement between theoretical shock models and observed line intensities. Estimated shock velocities, derived from fitting various line ratios, ranged from around 50kms−1 up to about 300kms−1 depending upon the degree of excitation of the HH object.

Keywords

Disk Accretion Young Star Mach Disk Shock Velocity Tauri Star 
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. Bacciotti, F., Chiuderi, C., Oliva, E., 1995, A&A, 296, 185ADSGoogle Scholar
  2. Bachiller, R., Gómez-González, J., 1992, A&A Rev., 3. 257ADSCrossRefGoogle Scholar
  3. Bally, J., Lada, C.J., 1983, ApJ, 265, 824ADSCrossRefGoogle Scholar
  4. Bally, J., Devine, D., 1994, ApJ, 428, L65ADSCrossRefGoogle Scholar
  5. Bence, S.J., Richer, J.S., Padman, R., 1995, MNRAS, in pressGoogle Scholar
  6. Biro, S., 1994, PhD Thesis, University of ManchesterGoogle Scholar
  7. Blondin, J.M., Fryxell, B.A., Königl, A., 1990, ApJ, 360, 370ADSCrossRefGoogle Scholar
  8. Bodo, G., Massaglia, S., Ferrari, A., Trussoni, E., 1994 A&A, 283, 655ADSGoogle Scholar
  9. Bohigas, J., Persi, P., Tapia, M., 1993, A&A, 267, 168ADSGoogle Scholar
  10. Brugel, E.W., 1989, in ESO Workshop on Low Mass Star Formation and Pre-main Sequence Objects, ed. B. Reipurth, (ESO, Garching), p311Google Scholar
  11. Brugel, E.W., Böhm, K.H., Mannery, E., 1981, ApJ, 243, 874ADSCrossRefGoogle Scholar
  12. Bührke, T., Mundt, R., Ray, T.P., 1988, A&A, 200, 99ADSGoogle Scholar
  13. Cardelli, J.A., Brugel, E.W., 1988, AJ, 96, 673ADSCrossRefGoogle Scholar
  14. Chernin, L., Masson, C., Gouveia Dal Pino, E.M., Benz, W., 1994, ApJ, 426, 204ADSCrossRefGoogle Scholar
  15. Corcoran, D., Ray, T.P., Mundt, R., 1993, A&A, 279, 206ADSGoogle Scholar
  16. Corcoran, M., Ray, T.P., 1996, in preparationGoogle Scholar
  17. Curiel, S., Rodríguez, L.F., Moran, J.M., Cantó, J., 1993, ApJ, 415, 191ADSCrossRefGoogle Scholar
  18. Curiel, S., 1995, Rev. Méx. Astr. Ap. Serie de Conferencias. 1. p59ADSGoogle Scholar
  19. Davis, C.J., Eislöffel, J., 1995, A&A, 300, 851ADSGoogle Scholar
  20. Davis, C.J., Eislöffel, J., Ray, T.P., 1994, ApJ, 426, L93ADSCrossRefGoogle Scholar
  21. Davis C.J., Mundt R., Eislöffel, J., Ray, T.P., 1995, AJ, 110, 766ADSCrossRefGoogle Scholar
  22. Davis C.J., Ray, T.P., Eislöffel, J., Corcoran, D., 1996, in preparationGoogle Scholar
  23. DeYoung, D.S., 1986, ApJ, 307, 62ADSCrossRefGoogle Scholar
  24. Dopita, M.A., 1978, ApJS, 37, 117ADSCrossRefGoogle Scholar
  25. Dopita, M.A., Schwartz, R.D., Evans, I., 1982, ApJ, 263, L73ADSCrossRefGoogle Scholar
  26. Downes, T., 1996, in Solar and Astrophysical Magnetohydrodynamic Flows, Proceedings of the NATO ASI, Heraklion, Crete. Astrophys. Lett. & Comm., ed. K. Tsinganos, in pressGoogle Scholar
  27. Dowries, T., Ray, T.P., Drurv. L., O’C., 1996, in preparationGoogle Scholar
  28. Edwards, S., Ray, T.P., Mundt, R., 1993, in Protostars and Planets III, eds. E. Levy and J. Lunine, (University of Arizona Press), p567Google Scholar
  29. Eislöffel, J. 1995, in Disks and Outflows Around Young Stars Proceedings of the Heidelberg Conference in honor of Prof. H. Elsässer, eds. S.V.W. Beckwith, A. Natta and J. Staude, Lecture Notes in Physics Series, Springer-Verlag, in pressGoogle Scholar
  30. Eislöffel, J., Davis, C.J., Ray, T.P., Mundt, R., 1994, ApJ, 422, L91ADSCrossRefGoogle Scholar
  31. Eislöffel, J., Mundt, R., 1994, A&A, 284, 530ADSGoogle Scholar
  32. Falle, S.A.E.G., Innes, D.E., Wilson, M.J., 1987, MNRAS, 225, 741ADSMATHGoogle Scholar
  33. Fendt, C., Camenzind, M., Appl, S., 1995, A&A, 300, 791ADSGoogle Scholar
  34. Fukui, Y., 1989, in ESO Workshop on Low Mass Star Formation and Pre-main Sequence Objects ed. B. Reipurth, (ESO, Garching), p95Google Scholar
  35. Fukui, Y., Iwata, T., Mizuno, A., Bally, J., Lane, A.P., 1993, in Protostars and Planets III eds. E. Levy and J. Lunine, (University of Arizona Press), p603Google Scholar
  36. Gouveia Dal Pino, E.M., Birkinshaw, M., Benz, W., 1996, ApJ, submittedGoogle Scholar
  37. Haro, G. 1952, ApJ, 115, 572ADSCrossRefGoogle Scholar
  38. Hartigan, P., 1989, ApJ, 339, 987ADSCrossRefGoogle Scholar
  39. Hartigan, P., Morse, J.A., Raymond, J., 1994, ApJ, 436, 125ADSCrossRefGoogle Scholar
  40. Hartigan, P., Raymond, J., Hartmann, L., 1987, ApJ, 316, 323]ADSCrossRefGoogle Scholar
  41. Herbig, G.H., 1951, ApJ, 113, 697ADSCrossRefGoogle Scholar
  42. Herbig, G.H., 1970, in Spectroscopic Astrophysics, ed. G.H. Herbig, (Berkeley, Univ. California Press), p237Google Scholar
  43. Herbig, G.H., Jones, B.F., 1981, AJ, 86, 1232ADSCrossRefGoogle Scholar
  44. Hirth, G.A., 1994, PhD Thesis, University of HeidelbergGoogle Scholar
  45. Hirth, G.A., Mundt, R., Solf, J., Ray, T.P., 1994, ApJ, 427, L99ADSCrossRefGoogle Scholar
  46. Hirth, G.A., Mundt, R., Solf, J., 1994, A&A, 285, 929ADSGoogle Scholar
  47. Hodapp, K.W., 1994, ApJS, 94, 625ADSCrossRefGoogle Scholar
  48. Jones, B.F., Herbig, G.H., 1982, AJ, 87, 1223ADSCrossRefGoogle Scholar
  49. Kepner, J., Hartigan, P., Yang, C., Strom, S., 1993, ApJ, 415, L119ADSCrossRefGoogle Scholar
  50. Koerner D.W., Sargent, A.I., 1995, AJ, 109, 2138ADSCrossRefGoogle Scholar
  51. Königl, A., 1982, ApJ, 261, 115ADSCrossRefGoogle Scholar
  52. López, R., Raga, A., Riera, A., Anglada, G., Estalella, R., 1995, MNRAS, 274, L19ADSGoogle Scholar
  53. Martí, J., Rodríguez, L. F., Reipurth, B., 1995, ApJ, 449, 184ADSCrossRefGoogle Scholar
  54. Massaglia, S., Bodo, G., Rossi, P., Ferrari, A., 1996, in Solar and Astrophysical Magnetohydrodynamic Flows, Proceedings of the NATO ASI, Heraklion, Crete, Astrophys. Lett. & Comm., ed. K. Tsinganos, in pressGoogle Scholar
  55. Morse, J.A., Hartigan, P., Heathcote, S., Raymond, J.C., Cecil, G., 1994, ApJ, 425, 738ADSCrossRefGoogle Scholar
  56. Mundt, R., 1986, Can. J. Phys., 64, 407ADSCrossRefGoogle Scholar
  57. Mundt, R., Bührke, T., Fried, J.W., Neckel, T., Sarcander, M., Stocke, J., 1984, A&A, 140, 17ADSGoogle Scholar
  58. Mundt, R., Brugel, E.W., Bührke, T., 1987, ApJ, 319, 275ADSCrossRefGoogle Scholar
  59. Mundt, R., Fried, J.W., 1983, ApJ, 274, L83ADSCrossRefGoogle Scholar
  60. Mundt, R., Ray, T.P., 1994, in The Nature and Evolutionary Status of Herbig Ae/Be Stars, eds. P.S. Thé, M.R. Perez & E.P.J, van den Heuvel, P.A.S.P. Conf. Ser., p237Google Scholar
  61. Mundt, R., Ray, T.P., Bührke, T., Raga, A.C., Solf, J., 1990, A&A, 232, 37ADSGoogle Scholar
  62. Mundt, R., Ray, T.P., Raga, A.C., 1991, A&A, 252, 740ADSGoogle Scholar
  63. Neckel, Th., Staude, H.J., 1987, ApJ, 322, L27ADSCrossRefGoogle Scholar
  64. Noreiga-Crespo, A., Garnavich, P.M., 1994, AJ, 108, 1432ADSCrossRefGoogle Scholar
  65. Ogura, K., 1995, ApJ, 450, L230CrossRefGoogle Scholar
  66. Osterbrock, D.E., 1958, PASP, 70, 399ADSCrossRefGoogle Scholar
  67. Osterloh, M., Beckwith, S.V.W., 1995, ApJ, 439, 2880CrossRefGoogle Scholar
  68. Parker, N.D., Padman, R., Scott, P.F., 1991, MNRAS, 252, 442ADSGoogle Scholar
  69. Poetzel, R., Mundt, R., Ray, T.P., 1989, A&A, 224, L13ADSGoogle Scholar
  70. Pravdo, S. H., Rodríguez, L. F., Curiel, S., Cantó, J., Torrelles, J. M., Becker, R.H., Sellgren, K.M., 1985, ApJ, 293, L35ADSCrossRefGoogle Scholar
  71. Raga, A.C., 1995, Rev. Mex. Astr. Ap. Serie de Conferencias, 1. p103ADSGoogle Scholar
  72. Raga, A.C., Binette, L., Cantó, J., 1990, ApJ, 360, 612ADSCrossRefGoogle Scholar
  73. Raga, A.C., Cabrit, S., 1993, A&A, 278, 267ADSGoogle Scholar
  74. Raga, A.C., Kofman, L., 1992, ApJ, 386, 222ADSCrossRefGoogle Scholar
  75. Ray, T.P., 1987, A&A, 171, 145ADSGoogle Scholar
  76. Ray, T.P., Mundt, R., 1993, in Astrophysical Jets, eds. M. Fall. C. O’Dea, M. Livio and D. Burgarella, (Cambridge University Press), p145Google Scholar
  77. Ray, T.P., Mundt, R., Dyson, J., Innes, D.E., Falle, S.A.E.G., Raga, A.C., 1996, in preparationGoogle Scholar
  78. Raymond, J.C., 1976, PhD thesis, Univ. Wis. MadisonGoogle Scholar
  79. Raymond, J.C., 1979, ApJS, 31, 1ADSCrossRefGoogle Scholar
  80. Rees, M.J., 1978, MNRAS, 184, L61ADSGoogle Scholar
  81. Reipurth, B., 1989, in ESO Workshop on Low Mass Star Formation and Pre-main Sequence Objects, ed. B. Reipurth (ESO, Garching), p247Google Scholar
  82. Reipurth, B., Bally, J., Graham, J.A., Lane, A.P., Zealey, W.J., 1986, A&A, 164, 51ADSGoogle Scholar
  83. Reipurth, B., Cernicharo, J., 1995, Rev. Mex. Astr. Ap. Serie de Conferencias, 1, p43ADSGoogle Scholar
  84. Reipurth, B., Heathcote, S., 1991, A&A, 246, 511ADSGoogle Scholar
  85. Reipurth, B., Raga, A.C., Heathcote, S., 1992, ApJ, 392, 145ADSCrossRefGoogle Scholar
  86. Sargent, A.I., 1995 in Disks and Outflows Around Young Stars Proceedings of the Heidelberg Conference in honor of Prof. H. Elsässer, eds. S.V.W. Beckwith, A. Natta and J. Staude, Lecture Notes in Physics Series, Springer-Verlag, in pressGoogle Scholar
  87. Sargent, A. I., Beckwith, S.V.W., 1987, ApJ, 323, 294ADSCrossRefGoogle Scholar
  88. Sargent, A. I., Beckwith, S.V.W., 1989, in Structure and Dynamics of the Interstellar Medium: Proc. IAU Coll. 120 eds. G. Tenorio-Tagle, J. Melnick and M. Moles (Berlin: Springer-Verlag), p215CrossRefGoogle Scholar
  89. Schwartz, R.D., 1975, ApJ, 195, 631ADSCrossRefGoogle Scholar
  90. Schwartz, R.D., 1978, ApJ, 223, 884ADSCrossRefGoogle Scholar
  91. Schwartz, R.D., 1983, ARA&A, 21, 209ADSCrossRefGoogle Scholar
  92. Schwartz, R.D., Cohen, M., Jones, B.F., Bohm, K., Raymond, J.C., Hartmann, L.W., Mundt, R., Dopita, M.A., Schultz, A.S.B., 1993, AJ, 106, 740ADSCrossRefGoogle Scholar
  93. Smith, M.D., 1994, MNRAS, 266, 238ADSGoogle Scholar
  94. Stahler, S.W., 1994, ApJ, 422, 616ADSCrossRefGoogle Scholar
  95. Stapelfeldt et al., 1996, in preparationGoogle Scholar
  96. Strom S.E., Strom, K.M., Grasdalen, G.L., Sellgren, K., Wolff, S., 1985, AJ, 90, 2281ADSCrossRefGoogle Scholar
  97. Zinnecker, H., Mc Caughrean, M.J., 1995, in preparationGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • T. P. Ray
    • 1
  1. 1.Dublin Institute for Advanced StudiesDublin 2Ireland

Personalised recommendations