Excitation for masing by water in X-irradiated environments at the nuclei of active galaxies

Astrophysical Journal

Volumn 476, Issue 2 PART I, 1997, Pages 685-691

  Wallin, Bradley K ^a   Watson, William D ^a  

^a University of Illinois at Urbana Champaign   (United States)

Author keywords

Dust, extinction; Galaxies: active; Galaxies: nuclei; Masers

Indexed keywords

EID: 21744448794     PISSN: 0004637X     EISSN: 15384357     Source Type: Journal    
DOI: 10.1086/303641     Document Type: Article

References (20)

1. Anderson, N., & Watson, W. D. 1993, ApJ, 407,620
2. Bolgova, G. T., Strelnitskii, V. S., & Shmeld, I. K. 1977, Soviet Astron. 21, 468
3. Braatz, J. A., Wilson, A. S., & Henkel, C. 1996, ApJS, 106,51
4. Collison, A. J., & Watson, W. D. 1995, ApJ, 452, L103 (CW)
5. Deguchi, S. 1981, ApJ, 249,145
6. Gallimore, J. F., Baum, S. A., O'Dea, C. P., Brinks, E., & Pedlar, A. 1996, ApJ.462,740
7. Greenhill, L. J., Jiang, D. R., Moran, J. M., Reid, M. J., Lo, K. Y., & Claussen, M. J. 1995, ApJ, 440,619
8. Krolik, J. H., & Lepp, S. 1989, ApJ, 347,179
9. Kylafis, N. D., & Norman, C. A. 1991, ApJ, 373,525
10. Laor, A., & Draine, B. T. 1993, ApJ, 402,441
11. Makishima, K, et al. 1994, PASJ, 46, L77
12. Menten, K. 1994, in Lecture Notes in Physics Vol. 439, The Structure and Content of Molecular Clouds, ed. T. L. Wilson & K. J. Johnston (Berlin: Springer), 150
13. Miyoshi, M., Moran, J., Herrnstein, I, Greenhill, L., Nakai, N., Diamond, P., & Inoue, M. 1995, Nature, 373,127
14. Moran, J. M., Greenhill, L. J., & Hermstein, J. R. 1996, BAAS, 27,1367
15. Moran, J. M., Greenhill, L. J., Herrnstein, J., Diamond, P., Miyoshi, M., Nakai, N., & Inoue, M. 1995, Proc. Natl. Acad. Sci, 92,11427
16. Neufeld, D. A., Maloney, P. R., & Conger, S. 1994, ApJ, 436, L127 (NMC)
17. Neufeld, D. A-, & Melmck, G. J. 1991, ApJ, 368,215
18. Watson, W. D. 1994, in Lecture Notes in Physics, Vol. 439, The Structure and Content of Molecular Clouds, ed. T. L. Wilson & K. J. Johnston (Berlin: Springer), 109
19. Watson, W. D., & Wallin, B. K. 1994, ApJ, 432, L35
20. Wilson, A. S-, Braatz, J. A., & Henkel, C. 1995, ApJ, 455,136