Abstract
The last decade of research on star formation has established two important facts, namely that most if not all young stellar objects (henceforth YSO’s) are associated with both outflows and disks. The obvious question is whether or not these two phenomena are physically related. The outflow data clearly show that radiation cannot be the driving agent for the outflows, so that hydromagnetic drives that employ rotation and strong magnetic fields are favoured. Since both the central YSO and surrounding accretion disk are natural reservoirs in this regard, the theoretical and observational debate has increasingly turned to discriminating between these two possibilities. If outflows are stellar, then interaction between the wind and a surrounding flaring disk may redirect it into bipolar outflow. If outflows are disk winds however, the connection between outflows and disks is more profound. In the latter case, the outflow is intrinsically bipolar and disk accretion rates and wind mass loss rates are fundamentally connected since the disk angular momentum is carried off by the wind. The mechanical energy of the outflow derives from the gravitational binding energy released by the accretion flow of material in the disk. Moreover, evolution of the disk, a widely held notion, would imply that outflows must also evolve with time.
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References
Achterberg, A., Blandford, R.D., and Goldreich, P., 1983; Nature, 304, 607
Appenzeller, I., and Mundt, R., 1989; Astron. Ap. Rev., 3, 56
Bally, J., and Lada, C.J., 1983; Ap. J., 265, 824
Beckwith, S.V.W., Sargent, A.I., Koresko, CD., and Weintraub, D.A., 1989; Ap. J., 343, 393
Blandford, R.D., and Znajek, R.L., 1977; M.N.R.A.S., 179, 433
Blandford, R.D., and Payne, D.R., 1982; M.N.R.A.S., 199, 883
Bertout, C., Basri, G., and Bouvier, J., 1988; Ap. J., 330, 350
Bouvier, J., 1990; preprint
Cabrit, S., and Bertout, C., 1990; preprint
Cabrit, S., Edwards, S., Strom, S.E., and Strom, K.M., 1990; Ap. J., 354, 687
Cannizzo, J.K., and Pudritz, R.E., 1988; Ap. J., 327, 840
Chan, K.L., and Henriksen, R.N., 1980; Ap. J., 241, 534
Chandrasekhar, S., 1956; Ap. J., 124, 232
Chini, R., 1989; ESO Workshop on Low Mass Star Formation and Pre-Main Sequence Objects, ed. B. Reipurth, p. 173
Cohen, M., and Kuhi, L.V., 1979; Ap. J. Suppl., 41, 743
Cohen, M., Emerson, J.P., and Beichman, C.A., 1989; Ap. J., 339, 455
Draine, B.T., 1983; Ap. J.,270, 519.
Edwards, S., Cabrit, S., Strom, S.E., Heyer, L., Strom, K.M., and Anderson, E., 1987; Ap. J., 321, 473
Edwards, S., Cabrit, S., Ghandour, L.O., Strom, S.E., 1989; ESO Workshop on Low Mass Star Formation and Pre-Main Sequence Objects, ed. B. Reipurth, p.385
Elias, J.H., 1978; Ap. J., 224, 857
Gomez de Castro, A.I., and Pudritz, R.E., 1990; submitted to Ap. J.
Hartmann, L., and McGregor, K.B., 1982; Ap. J., 259, 180
Hartmann, L., Hewett, R., Stahler, S., and Mathieu, R.D., 1986; Ap. J., 309, 275
Hartmann, L., and Stauffer, J.R., 1989; Astron. J., 97, 873
Hartmann, L., and Raymond, J.C., 1988; Ap. J., 337, 903
Henriksen, R.N., Rayburn, D.R., 1971; M.N.R.A.S., 152, 323
Herbig, G.H., Vrba, F.J., and Rydgren, A.E., 1986; Astron. J., 91, 575
Jankovics, S., Appenzeller, I., and Krautter, J., 1983; P.A.S.P., 95, 883
Konigl, A., 1982; Ap. J., 261, 115
Konigl, A., 1989; Ap. J., 342, 208
Lada, C.J., 1985; Ann. Rev. Astron. Astrophys., 23, 267
Lada, C.J., and Shu, F.H., 1990, Science, 248, 564
Lovelace, R.V.E., Wang, J.C.L., and Sulkanen, M.E., 1987; Ap.J., 315, 504
Mestel, L., 1961; M.N.R.A.S., 122, 473
Mestel, L., 1968; M.N.R.A.S., 138, 359
Mestel, L., and Paris, R.B., 1979; M.N.R.A.S., 187, 337
Michel, F.C., 1969; Ap. J. 158, 727
Moneti, A., Pipher, J.L., Helfer, H.L., McMillan, R.S., and Perry, M.L., 1984; Ap. J., 282, 508
Okamoto, 1975; M.N.R.A.S., 173, 357
Parker, I.N., 1958; Ap. J., 128, 664
Pelletier, G., and Pudritz, R.E., 1991; submitted to Ap. J.
Pneumann, J.W., and Kopp, R.A., 1971; Solar Phys., 18, 258
Pudritz, R.E., 1981; M.N.R.A.S., 195, 897
Pudritz, R.E., 1985; Ap. J., 293, 216
Pudritz, R.E., 1988; NATO ASI on Galactic and Extragalactic Star Formation, eds. R.E. Pudritz and M. Fich, p. 135
Pudritz, R.E., and Norman, C.A., 1983; Ap. J., 274, 677
Pudritz, R.E., and Norman, C. A., 1986; Ap. J., 301, 571
Rees, M.J., 1984; Ann. Rev. Astron. Ap., 22, 471
Rydgren, A.E., Strom, S.E., and Strom, K.M., 1976; Ap. J. Suppl, 30, 307
Sakurai, T., 1985; Astr. Ap., 152, 121
Schatzman, E., 1962; Astr. Ap., 25, 18
Shakura, N.I., and Sunyaev, R.A., 1973; Astr. Ap., 24, 337
Shibata, K., and Uchida, Y., 1986; Publ. Astron. Soc. Japan, 38, 631.
Shu, F.H., Lizano, S., Ruden, S.P., Najita, J., 1988; Ap. J. Lett, 328, L19
Snell, R.L., Loren, R.B., and Plambeck, R.L., 1980; Ap. J. Lett, 239, L7
Stone, J., 1990; Ph.D. Thesis, University of Urbana, Illinois
Uchida, Y., Kaifu, N., Shibata, K., Hayashi, S.-S., Hasegawa, T., and Hamatake, H., 1987; P.A.S.J., 39, 907
Uchida, Y., and Shibata, K., 1984; Pub Astr. Soc. Japan, 36, 105
Walter, F.M., Brown, A., Mathieu, R.D., Myers, P.C., and Vrba, F.J., 1988; Astron. J., 96, 297
Weber, E.J., and Davis, L. Jr., 1967; Ap. J., 148, 217
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Pudritz, R.E., Pelletier, G., Gomez de Castro, A.I. (1991). The Physics of Disk Winds. In: Lada, C.J., Kylafis, N.D. (eds) The Physics of Star Formation and Early Stellar Evolution. NATO ASI Series, vol 342. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3642-6_16
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DOI: https://doi.org/10.1007/978-94-011-3642-6_16
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