Abstract
The diffuse interstellar HI is the matrix within which many molecular clouds reside and the medium that soaks up the energy injected by sources such as supernovae and stellar winds. This energy stimulates turbulence in the HI, which cascades up the turbulent wavenumber spectrum. The spectral wavelengths extend all the way down to scales most easily quoted in Astronomical Units. HI and molecular clouds enjoy a synergistic relationship, with turbulent energy, angular momentum, magnetic fields, and matter flowing across the boundaries in both directions. The molecular clouds form stars, which in turn act as energy sources to round the circle and make star formation a feedback process.
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Argon, A. L., Reid, M. J., Menten, K. M.: 2000, ApJS 129, 159
Basu, S.: 2000, ApJ 540, L103
Batrla, W., Menten, K. M.: 1988, ApJ 329, L117
Beck, R.: 2001, Sp. Sci. Rev. 99, 243
Beck, R., Shukurov, A., Sokoloff, D., Wielebinski, R.: 2003, A&A 411, 98
Berkhuijsen, E. M., Haslam, C. G. T., Salter, C. J.: 1971, A&A 14, 252
Boulares, A., Cox, D. P.: 1990, ApJ 365, 544
Bourke, T. L., Myers, P. C., Robinson, G., Hyland, A. R.: 2001, ApJ 554, 916
Brogan, C. L., Troland, T. H.: 2001, ApJ 560, 821
Caswell, J. L.: 2003, MNRAS 341, 551
Caswell, J. L.: 2004, MNRAS 352, 101
Chandrasekhar, S., Fermi, E.: 1953, ApJ 118, 113
Chrysostomou, A., Aitken, D. K., Jenness, T., Davis, C. J., Hough, J. H., Curran, R., Tamura, M.: 2002, A&A 385, 1014
Ciolek, G. E., Basu, S.: 2000, ApJ 529, 925
Crutcher, R. M.: 1999, ApJ 520, 706
Crutcher, R. M., Troland, T. H.: 2000, ApJ 537, L139
Crutcher, R. M., Heiles, C., Troland, T.: 2003, in Turbulence and Magnetic Fields in Astrophysics, ed. E. Falgarone, T. Passot, Lecture Notes in Physics 614 (Berlin: Springer), p. 155
Crutcher, R. M., Nutter, D., Ward-Thompson, D., Kirk, J. M.: 2004, ApJ 600, 279
Crutcher, R. M., Troland, T. H., Goodman, A. A., Heiles, C., Kazès, I., Myers, P. C.: 1993, ApJ 407, 175
Crutcher, R. M., Troland, T. H., Lazareff, B., Paubert, G., Kazès, I.: 1999, ApJ 514, L121
Davies, R. D.: 1974, in Galactic Radio Astronomy, IAU Symp. 60, ed. F. J. Kerr, S. C. Simonson (Dordrecht: Reidel), p. 275
Davis, L., Greenstein, J. L.: 1951, ApJ 114, 206
Draine, B. T.: 2003, ARA&A 41, 241
Elmegreen, B. G.: 2000, ApJ 530, 277
Ferrière, K., Mac Low, M.-M., Zweibel, E.: 1991, ApJ 375, 239
Fiebig, D., Güsten, R.: 1989, A&A 214, 333
Fiedler, R. A., Mouschovias, T. Ch.: 1993, ApJ 415, 680
Field, G. B.: 1965, ApJ 142, 531
Fish, V. L., Reid, M. J., Argon, A. L., Menten, K. M.: 2003, ApJ 596, 328
Genzel, R., Downes, D.: 1977, A&AS 30, 145
Girart, J. M., Crutcher, R. M., Rao, R.: 1999, ApJ 525, L109
Goldreich, P., Kylafis, N. D.: 1981, ApJ 243, L75
Goodman, A. A., Heiles, C.: 1994, ApJ 424, 208
Heiles, C.: 1967, ApJS 15, 97
Heiles, C.: 1984, ApJS 55, 585
Heiles, C.: 1988, ApJ 324, 321
Heiles, C.: 1989, ApJ 336, 808
Heiles, C.: 1993, BAAS 25, 829
Heiles, C.: 1996a, ApJ 462, 316
Heiles, C.: 1996b, ApJ 466, 224
Heiles, C.: 1997, ApJS 111, 245
Heiles, C.: 1998a, Astrophys. Lett. and Comm. 37, 85
Heiles, C. 1998b, in The Local Bubble and Beyond ed. D. Breitschwerdt, M. J. Freyberg, J. Trümper (Berlin: Springer) p. 229
Heiles, C.: 2000a, AJ 119, 923
Heiles, C.: 2000b, in Tetons 4: Galactic Structure, Stars, and the Interstellar Medium, ed. C. E. Woodward, M. D. Bicay, J. M. Shull, ASP Conf. Ser. 231, p. 294
Heiles, C., Troland, T. H.: 2003, ApJ 586, 106
Heiles, C., Troland, T. H.: 2005, ApJ, in preparation
Heiles, C., Goodman, A. A., McKee, C. F., Zweibel, E. G.: 1993, in Protostars and Planets III, ed. E. H. Levy, J. I. Lunine (Tucson: Univ. of Arizona Press), p. 279
Heiles, C., Perillat, P., Nolan, M. et al.: 2001, PASP 113, 1247
Heiles, C., Robishaw, T., Troland, T. H.: 2003, Calibrating the GBT at L, C, and X Bands, GBT Commissioning Memo 23, available at wwwlocal.gb.nrao.edu/ rmaddale/GBT/Commissioning/memolist.html
Heitsch, F., Zweibel, E. G., MacLow, M.-M., Li, P. S., Norman, M. L.: 2001, ApJ 561, 800
Heyer, M. H., Vrba, F. J., Snell, R. L. et al.: 1987, ApJ 321, 855 Snell, R. L. et al.: 1987, ApJ 321, 855
Hildebrand, R. H.: 1988, QJRAS 29, 327
Hildebrand, R. H.: 2002, in Astrophysical Spectropolarimetry, Proc. XII Canary Islands Winter School of Astrophysics, ed. J. Trujillo-Bueno, F. Moreno-Insertis, F. Sánchez (Cambridge: Cambridge University Press), p. 265
Hildebrand, R.: 2003, New Astro. Rev. 47, 1009
Hildebrand, R. H., Davidson, J. A., Dotson, J. L., Dowell, C. D., Novak, G. F., Vaillancourt, J. E.: 2000, PASP 112, 1215
Jenkins, E. B., Tripp, T. M.: 2001, ApJS 137, 297
Kylafis, N. D.: 1983, ApJ 275, 135
Lai, S.-P., Girart, J. M., Crutcher, R. M.: 2003, ApJ 598, 392
Lazarian, A.: 2003, J. Quant. Spectrosc. Radiat. Trans. 79, 881 (also astro-ph/0208487) J. Quant. Spectrosc. Radiat. Trans. 79, 881 (also astro-ph/0208487)
Levin, S. M., Langer, W. D., Velusamy, T., Kuiper, T. B. H., Crutcher, R. M.: 2001, ApJ 555, 850
MacLow, M., Klessen, R. S., Burkert, A., Smith, M. D.: 1998, Phys. Rev. Lett. 80, 2754
MacLow, M., Klessen, R. S.: 2004, Rev. Mod. Phys. 76, 125
Matthews, B. C., Wilson, C. D., Fiege, J. D.: 2001, ApJ 562, 400
McKee, C. F., Ostriker, J. P.: 1977, ApJ 218, 148
Mestel, L., Spitzer, L., Jr.: 1956, MNRAS 116, 505
Mouschovias, T. Ch.: 1976, ApJ 206, 753
Mouschovias, T. Ch., Ciolek, G. E.: 1999, in The Origin of Stars and Planetary Systems, ed. C. J. Lada, N. D. Kylafis (Dordrecht: Kluwer), p. 305
Myers, P. C., Goodman, A. A., Güsten, R., Heiles, C.: 1995, ApJ 442, 177
Nakano, T., Nakamura, T.: 1978, PASJ 30, 671
Norman, C., Ikeuchi, S.: 1989, ApJ 345, 372
Norris, R. P., Booth, R. S., Diamond, P. J., Porter, N. D.: 1982, MNRAS 201, 191
Ostriker, E. C., Stone, J. M., Gammie, C. F.: 2001, ApJ 546, 980
Padoan, P., Goodman, A., Draine, B. T., Juvela, M., Nordlund, Å., Rögnvaldsson, ö. E.: 2001, ApJ 559, 1005
Pereyra, A., Magalhaes, A. M.: 2004, ApJ 603, 584
Purcell, E. M.: 1979, ApJ 231, 404
Purcell, E. M., Spitzer, L.: 1971, ApJ 167, 31
Roberts, D. A., Crutcher, R. M., Troland, T. H.: 1995, ApJ 442, 208
Sarma, A. P., Troland, T. H., Romney, J. D.: 2001, ApJ 554, L217
Sarma, A. P., Troland, T. H., Crutcher, R. M., Roberts, D. A.: 2002, ApJ 580, 928
Schleuning, D. A.: 1998, ApJ 493, 811
Schneider, N., Simon, R., Kramer, C., Stutzki, J., Bontemps, S.: 2002, A&A 384, 225
Schwarz, U. J., Troland, T. H., Albinson, J. S., Bregman, J. D., Goss, W. M., Heiles, C.: 1986, ApJ 301, 320
Slavin, J. D., Cox, D. P.: 1992, ApJ 392, 131
Spitzer, L., Jr.: 1942, ApJ 95, 329
Tomisaka, K.: 1990, ApJ 361, L5
Troland, T. H.: 2004, in The Magnetized Interstellar Medium, ed. B. Uyanıker, W. Reich, R. Wielebinski (Katlenburg-Lindau: Copernicus), p. 105
Troland, T. H., Crutcher, R. M.: 2005, ApJ, to be submitted
Troland, T. H., Heiles, C.: 1982, ApJ 372, 179
Troland, T. H., Heiles, C.: 1986, ApJ 301, 339
Troland, T. H., Crutcher, R. M., Heiles, C.: 1985, ApJ 298, 808
Trumpler, R. J., Weaver, H. F.: 1953, Statistical Astronomy (New York: Dover)
Verschuur, G. L.: 1969, ApJ 156, 861
Verschuur, G. L.: 1974, in Galactic and Extra-Galactic Radio Astronomy, ed. G. L. Verschuur, K. I. Kellermann (New York: Springer), p. 179
Verschuur, G. L.: 1989, ApJ 339, 163
Verschuur, G. L.: 1993, BAAS 25, 1466
Verschuur, G. L.: 1995a, ApJ 451, 624
Verschuur, G. L.: 1995b, ApJ 451, 645
Vrba, F. J., Strom, S. E., Strom, K. M.: 1976, AJ 81, 958
Wolf, S., Launhardt, R., Henning, T.: 2003, ApJ 592, 233
Wolfire, M. G., McKee, C. F., Hollenbach, D., Tielens, A. G. G. M.: 2003, ApJ 587, 278
Wolleben, M., Reich, W.: 2004, in The Magnetized Interstellar Medium, ed. B. Uyanıker, W. Reich, R. Wielebinski (Katlenburg-Lindau: Copernicus), p. 99
Woltjer, L.: 1967, in Radio Astronomy and the Galactic System, IAU Symp. 31, ed. H. van Woerden (London: Academic Press), p. 479
Woody, D. P., Scott, S. L., Scoville, N. Z., Mundy, L. G., Sargent, A. I., Padin, S., Tinney, C. G., Wilson, C. D.: 1989, ApJ 337, L41
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Heiles, C., Crutcher, R. Magnetic Fields in Diffuse HI and Molecular Clouds. In: Wielebinski, R., Beck, R. (eds) Cosmic Magnetic Fields. Lecture Notes in Physics, vol 664. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3540313966_7
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