Abstract
Two strong extragalactic OH masers have been detected in the galaxies NGC3690 and Mrk 231 which are in the same class as the megamaser source IC4553 (Arp 220). The amplification model for the background continuum proposed for IC4553 can account for most of the powerful OH maser lines and for part of the H2O emission. Most masing galaxies have sufficient infrared flux to pump the masing regions, except that the H2O pumping must occur at a much higher conversion efficiency than the OH pumping.
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References
Nguyen-Q-Rieu, Mebold, U., Winnberg, A., Guibert, J. & Booth, R. Astr. Astrophys. 52, 467–469 (1976).
Weliachew, L., Fomalont, E. B. & Greisen, E. W. Astr. Astrophys. 137, 335–342 (1984).
Baan, W. A., Haschick, A. D., Buckley, D. & Schmelz,, J. Astrophys. J. (in the press).
Baan, W. A., Wood, P. A. D. & Haschick, A. D. Astrophys. J. Lett. 260, L49–L52 (1982).
Haschick, A. D. & Baan, W. A. Nature 314, 144–146 (1985).
Claussen, M. J., Heiligman, G. M. & Lo, K. Y. Nature 310, 298–300 (1984).
Henkel, C. et al. Astr. Astrophys. 141, L1–L3 (1984).
dos Santos, P. M. & Lepine, J. R. D. Nature 278, 34 (1979).
Batchelor, R. A., Jauncey, D. L. & Whiteoak, J. B. Mon. Not. R. astr. Soc. 200, 19p–21p (1982).
Gardner, F. F. & Whiteoak, J. B. Mon. Not. R. astr. Soc. 201, 13p–15p (1982).
Gardner, F. F. & Whiteoak, J. B. Mon. Not. R. astr. Soc. 173, 77p–81p (1975).
Reid, M. J. & Moran, J. M. A. Rev. Astr. Astrophys. 19, 231–276 (1981).
Downes, D. Birth and Infancy of Stars (eds Lucas, R. & Omont, A.) (in preparation).
Baan, W. A. & Haschick, A. D. Astrophys. J. 279, 541–549 (1984).
Norris, R. P., Baan, W. A., Haschick, A. D., Booth, R. S. & Diamond, P. J. Mon. Not. R. astr. Soc. (in the press).
Baan, W. A., Haschick, A. D. & Schmelz, J. T. IAU Circ. No. 3993 (1984).
Gehrz, R. D., Sramek, R. A. & Weedman, D. W. Astrophys. J. 267, 551–562 (1983).
Arp, H. C. Atlas of Peculiar Galaxies (California Just. Techn., Pasadema, 1966).
Weedman, D. W. Astrophys. J. 171, 5–12 (1982).
Rieke, G. H. & Low, F. J. Astrophys. J. Lett. 200, L67–L69 (1972).
Allen, D. H. Astrophys. J. 207, 367–375 (1976).
Lonsdale, C. J., Neugebauer, G. & Soifer, B. T. B.A.A.S. 16, 470 (1984).
Dickey, J. M. Astrophys. J. 263, 87–93 (1982).
Heckman, T. M., van Breugel, W., Miley, G. K. & Butcher, H. R. Astr. J. 88, 1077–1087 (1983).
Lacy, J. H. et al. Astrophys. J. 256, 75–82 (1982).
Ulvestad, J. S. Astrophys. J. 259, 96–102 (1982).
Adams, T. F. Astrophys. J. Lett. 176, L1–L3 (1972).
Heckman, T. M., Balick, B. & Sullivan, W. T. Astrophys. J. 224, 745–760 (1978).
Ulvestad, J. S., Wilson, A. & Sramek, R. A. Astrophys. J. 247, 419–442 (1981).
Mirabel, I. F. Astrophys. J. 260, 75–80 (1982).
Baan, W. A., van Gorkom, J., Schmelz, J. T. & Mirabel, I. F. Astrophys. J. (submitted).
Norris, R. P. Mon. Not. R. astr. Soc. (submitted).
Schild, R. E. Sky and Telescope January, 24–45 (1985).
Soifer, B. T. et al. Astrophys. J. Lett. 283, L1–L4 (1984).
Emerson, J. P. et al. Nature 311, 237–238 (1984).
Keel, W. Astrophys. J. 282, 75–84 (1984).
Joseph, R. D., Wright, G. S. & Wade, R. Nature 311, 132–133 (1984).
Becklin, E. et al. IAU Circ. No. 3968 (1984).
Rickard, L. J., Bania, T. M. & Turner, B. E. Astrophys. J. 252, 147–155 (1982).
Liszt, H. S. & Burton, W. B. Astrophys. J. 226, 790–816 (1978).
Nguyen-Q-Rieu et al. Astr. Astrophys. 46, 413–428 (1976).
Guibert, J., Elitzur, M. & Nguyen-Q-Rieu Astr. Astrophys. 66, 395–405 (1978).
Bujarrabal, V. et al. Astr. Astrophys. 81, 1–7 (1980); 91, 283–289 (1980).
van der Kruit, P. C. Astr. Astrophys. 15, 110–122 (1971).
Hummel, E. van der Hulst, J. M. & Dickey, J. M. Astr. Astrophys. 134, 207–221 (1984).
Weedman, D. W. Astrophys. J. 266, 479–484 (1983).
Soifer, B. T. et al. Astrophys. J. Lett. 278, L71 (1984).
Kennicutt, R. C. & Keel, W. Astrophys. J. 279, L5–L9 (1984).
Lonsdale, C. J., Persson, S. E. & Matthews, K. Astrophys. J. (in the press).
Whiteoak, J. B. & Gardner, F. F. Astrophys. Lett 15, 211–215 (1973).
Baan, W. A. & Haschick, A. D. Astr. J. 88, 1088–1093 (1983).
Moorwood, A. F. & Glass, I. S. Astr. Astrophys. 135, 281–288 (1984).
IRAS bulletin 1 Nature 303, 480 (1983); IRAS bulletin 15 Nature 310, 548 (1984).
Rieke, G. H. & Lebovsky, M. J. Astrophys. J. Lett. 220, L37–L41 (1978).
Whiteoak, J. B. & Gardner, F. F. Astrophys. J. Lett. 195, L81–L84 (1975).
Condon, J. J., Condon, M. A., Gisler, G. & Puschell, J. J. Astrophys. J. 252, 102–124 (1982).
Kronberg, P. P., Biermann, P. & Schwab, F. F. Astrophys. J. 246, 751–760 (1981).
de Bruyn, A. G. Astr. Astrophys. 58, 221–236 (1977).
Van Albada, G. D. thesis, Univ. Leiden (1978).
Wilson, A. S. & Ulvestad, J. S. Astrophys. J. 275, 8–15 (1983).
Duric, N. et al. Astrophys. J. 273, L11–L15 (1983).
Shostak, S. Astr. Astrophys. 68, 321–341 (1978).
Gottesman, S. et al. Astrophys. J. 204, 699–702 (1976).
Combes, F., Gottesman, S. & Weliachen, L. Astr. Astrophys. 59, 181–187 (1977).
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Baan, W. Powerful extragalactic masers. Nature 315, 26–31 (1985). https://doi.org/10.1038/315026a0
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DOI: https://doi.org/10.1038/315026a0
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