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Theory and extragalactic masers

Published online by Cambridge University Press:  03 August 2017

William D. Watson
William D. Watson*
Affiliation:
Department of Physics, University of Illinois, Urbana, IL 61801-3080

Abstract

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Theoretical research on extragalactic masers (and hence this review) is almost entirely directed toward 22 GHz water masers in circumnuclear disks with the focus being the near ideal masing disk at the nucleus of the galaxy NGC4258. The discussion here is organized around (1) the excitation and conditions for the masers, (2) the spatial and spectral appearance of the maser emission, and (3) the mass accretion rate and structure of the disk. In addition, a summary is given of the basic physics (spectral linebreadths and maser polarization) that underlies certain interpretations of these and other astrophysical masers.

Type
Part 7. Maser Theory
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 464 - 478
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Anderson, N., & Watson, W.D., 1993, ApJ, 407, 620 Google Scholar
Baan, W.A., Haschick, A.D., & Peng, E.W. 1993, BAAS, 25, 1325 Google Scholar
Babkovskaya, N.S., & Varshalovich, D.A. 2000, Astronomy Letters, 26, 144 Google Scholar
Blandford, R.D., & Payne, D.G. 1982, MNRAS, 199, 883 CrossRefGoogle Scholar
Bragg, A.E., Greenhill, L.J., Moran, J.M., & Henkel, C. 2000, ApJ, 535, 73 Google Scholar
Chary, R., Becklin, E.E., Evans, A.S., Neugebauer, G., Scoville, N.Z., Matthews, K., & Ressler, M.E. 2000, ApJ, 531, 756 CrossRefGoogle Scholar
Collison, A.J., & Watson, W.D. 1995, ApJ, 452, L103 Google Scholar
Desch, S., Wallin, B.K., & Watson, W.D. 1998, ApJ, 496, 775 Google Scholar
Deguchi, S. 1981, ApJ, 249, 145 CrossRefGoogle Scholar
Deguchi, S. 1982, ApJ, 259, 634 Google Scholar
Deguchi, S. 1994, ApJ, 420, 551 CrossRefGoogle Scholar
Deguchi, S., & Watson, W.D. 1989, ApJ, 340, L17 Google Scholar
Deguchi, S., & Watson, W.D. 1990, ApJ, 354, 649 Google Scholar
Emmering, R. T., & Watson, W.D. 1994, ApJ, 495, 774 Google Scholar
Gallimore, J.F., Henkel, C., Baum, S.E., Glass, I.S., Claussen, M.J., Prieto, M.A., & van Kap-herr, A. 2001, ApJ, in press Google Scholar
Gangadhara, R.T., Deguchi, S., & Lesch, H. 1999, Phys. Plasmas, 6, 4088 Google Scholar
Gammie, C.F., Narayan, R., & Blandford, R. 1999, ApJ, 516, 177 Google Scholar
Goldreich, P., Keeley, D.A., & Kwan, J.Y. 1973a, ApJ, 179, 111 [GKK] CrossRefGoogle Scholar
Goldreich, P., Keeley, D.A., & Kwan, J.Y. 1973b, ApJ, 182, 55 Google Scholar
Goldreich, P., & Kwan, J.Y. 1974, ApJ, 190, 27 Google Scholar
Herrnstein, J.R., Moran, J.M., Greenhill, L.J., Blackman, E.G., & Diamond, P.J. 1998, ApJ, 508, 243 CrossRefGoogle Scholar
Jackson, J.D. 1999, Classical Electrodynamics (New York: Wiley), 309 Google Scholar
Kartje, J.F., Konigl, A., & Elitzur, E. 1999, ApJ, 513, 180 CrossRefGoogle Scholar
Kumar, P. 1999, ApJ, 519, 599 Google Scholar
Lasota, J.P. et al. 1996, ApJ., 462, 142 CrossRefGoogle Scholar
Maoz, E, & McKee, C.F. 1998, ApJ, 494, 218 Google Scholar
Miller, K.A., & Stone, J.M. 2000, ApJ, 534, 398 Google Scholar
Miyoshi, M., Moran, J., Herrnstein, J., Greenhill, L., Nakai, N., Diamond, P., & Inoue, M. 1995, Nature, 373, 127 CrossRefGoogle Scholar
Moran, J.M., Greenhill, L.J., & Herrnstein, J.R 1999, J. Ap. Astr., 20, 165 Google Scholar
Moran, J.M. 2000, Phil. Trans. R. Soc. Lond. A, 358, 797 Google Scholar
Nedoluha, G.E., & Watson, W.D. 1990a, ApJ, 354, 669 Google Scholar
Nedoluha, G.E., & Watson, W.D. 1990b, ApJ, 361, L53 CrossRefGoogle Scholar
Nedoluha, G.E., & Watson, W.D. 1991, ApJ, 367, L63 Google Scholar
Nedoluha, G.E., & Watson, W.D. 1992, ApJ, 384, 185 CrossRefGoogle Scholar
Nedoluha, G.E., & Watson, W.D. 1994, ApJ, 423, 394 Google Scholar
Neufeld, D.N., Maloney, P.R., & Conger, S. 1994, ApJ, 436, L127 Google Scholar
Neufeld, D.N., & Maloney, P.R. 1995, ApJ, 447, L17 Google Scholar
Neufeld, D.N. 2000, ApJ, 542, L99 Google Scholar
Scappaticci, G.A., & Watson, W.D. 1992, ApJ, 400, 351 Google Scholar
Schmeld, I.K., Strelnitskii, V.S., & Muzylev, V.V. 1976, Astron. Zh., 53, 728 Google Scholar
Sobolev, A.M., Wallin, B.K., & Watson, W.D. 1998, ApJ, 498, 763 Google Scholar
Stella, L., & Rosner, R. 1984, ApJ, 277, 312 Google Scholar
Wallin, B.K., & Watson, W.D. 1995, ApJ, 445, 465 Google Scholar
Wallin, B.K., & Watson, W.D. 1997, ApJ, 481, 832 Google Scholar
Wallin, B.K., Watson, W.D., & Wyld, H.W. 1998, ApJ, 774, 775 Google Scholar
Wallin, B.K., Watson, W.D., & Wyld, H.W. 1999, ApJ, 517, 682 CrossRefGoogle Scholar
Watson, W.D. 1994, ApJ, 424, L37 Google Scholar
Watson, W.D., & Wallin, B. K. 1994, ApJ, 432, L35 Google Scholar
Watson, W.D., & Wallin, B. K. 1997, ApJ, 476, 685 Google Scholar
Watson, W.D., & Wiebe, D.S. 2001, ApJ, in press Google Scholar
Watson, W.D., & Wyld, H.W. 2000, ApJ, 530, 207 Google Scholar
Western, L.R. 1983, , Univ. of Illinois Google Scholar
Western, L.R., & Watson, W.D. 1983, ApJ, 275, 195 Google Scholar
Western, L.R., & Watson, W.D. 1984, ApJ, 285, 158 Google Scholar
Wiebe, D.S., & Watson, W.D. 1998, ApJ, 503, L71 Google Scholar