Hostname: page-component-77c89778f8-gvh9x Total loading time: 0 Render date: 2024-07-22T21:24:20.009Z Has data issue: false hasContentIssue false
  • English
  • Français

Radio Observations of Molecules in Nearby Galaxies

Published online by Cambridge University Press:  14 August 2015

J.B. Whiteoak
J.B. Whiteoak*
Affiliation:
Division of Radiophysics, CSIRO, Sydney, Australia

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The observation in 1965 of absorption due to the 18 cm ground-state transition of OH in the direction of Cas A (Weinreb et al., 1963) marked the first occasion on which a molecular cloud was detected at radio wavelengths. However, it was not until the later discovery of high-intensity OH emission (Weaver et al., 1965) that attention turned to nearby galaxies. Unfortunately, searches for OH emission in the Magellanic Clouds (McGee et al., 1965; Radhakrishnan, 1967) and in more distant galaxies (Roberts, 1967) were unsuccessful. The first detection of an OH transition, in absorption against the radio continuum of NGC 253 and 3034 (Weliachew, 1971), went almost unnoticed because the results were unconvincing. However, Whiteoak and Gardner (1973) and Nguyen-Q-Rieu et al. (1976) confirmed the existence of the absorption.

Type
II: Spiral Structure and Star Formation
Information
Symposium - International Astronomical Union , Volume 77: Structure and Properties of Nearby Galaxies , 1978 , pp. 131 - 137
Copyright
Copyright © Reidel 1978 

References

Chaisson, E.J. and Rodriguez, L.F.: 1977, Astrophys. J. Lett. 214, L11.CrossRefGoogle Scholar
Churchwell, E., Witzel, A., Huchtmeier, W., Pauliny-Toth, I., Roland, J. and Sieber, W.: 1977, Astron. Astrophys. 54, 969.Google Scholar
Combes, F., Encrenaz, P.J., Lucas, R. and Weliachew, L.: 1977, Astron. Astrophys. 55, 311.Google Scholar
Demoulin, M.H. and Burbidge, E.M.: 1970, Astrophys. J. 159, 799.Google Scholar
Gardner, F.F. and Whiteoak, J.B.: 1974, Nature 247, 526.CrossRefGoogle Scholar
Gardner, F.F. and Whiteoak, J.B.: 1975, Mon. Not. R. Astron. Soc. 173, 77P.CrossRefGoogle Scholar
Gardner, F.F. and Whiteoak, J.B.: 1976a, Mon. Not. R. Astron. Soc. 175, 9P.CrossRefGoogle Scholar
Gardner, F.F. and Whiteoak, J.B.: 1976b, Proc. Astron. Soc. Aust. 3, 63.CrossRefGoogle Scholar
Gottesmann, S.T., Lucas, R., Weliachew, L. and Wright, M.C.: 1976, Astrophys. J. 204, 699.CrossRefGoogle Scholar
Heckathorn, H.M.: 1972, Astrophys. J. 173, 501.Google Scholar
Huggins, P.J., Gillespie, A.R., Phillips, T.G., Gardner, F.F. and Knowles, S.H.: 1975, Mon. Not. R. Astron. Soc. 173, 69P.Google Scholar
Litvak, M.M.: 1969, Astrophys. J. 156, 471.CrossRefGoogle Scholar
McGee, R.X., Robinson, B.J., Gardner, F.F. and Bolton, J.G.: 1965, Nature 208, 1193.CrossRefGoogle Scholar
Nguyen-Q-Rieu, , Mebold, U., Winnberg, A., Guibert, J. and Booth, R.: 1976, Astron. Astrophys. 52, 467.Google Scholar
Radhakrishnan, V.: 1967, Aust. J. Phys. 20, 203.Google Scholar
Rickard, L.J., Palmer, P., Morris, M., Zuckerman, B. and Turner, B.E.: 1975, Astrophys. J. Lett. 199, L75.Google Scholar
Rickard, L.J., Palmer, P., Morris, M., Turner, B.E. and Zuckerman, B.: 1977a, Astrophys. J. 213, 673.Google Scholar
Rickard, L.J., Palmer, P., Turner, B.E., Morris, M. and Zuckerman, B.: 1977b, Astrophys. J. 214, 390.Google Scholar
Roberts, M.S.: 1967, Astrophys. J. 148, 931.CrossRefGoogle Scholar
Shaver, P.A., Churchwell, E. and Rots, A.H.: 1977, Astron. Astrophys. 55, 435.Google Scholar
Solomon, P.M. and de Zafra, R.: 1975, Astrophys. J. Lett. 199, L79.Google Scholar
Weaver, H., Williams, D.R.W., Dieter, N.H. and Lum, W.T.: 1965, Nature 208, 29.CrossRefGoogle Scholar
Weinreb, S., Barrett, A.H., Meeks, M.L. and Henry, J.C.: 1963, Nature 200, 829.CrossRefGoogle Scholar
Weliachew, L.: 1971, Astrophys. J. Lett. 167, L47.CrossRefGoogle Scholar
Whiteoak, J.B. and Gardner, F.F.: 1973, Astrophys. Lett. 15, 211.Google Scholar
Whiteoak, J.B. and Gardner, F.F.: 1975, Astrophys. J. Lett. 195, L81.Google Scholar
Whiteoak, J.B. and Gardner, F.F.: 1976a, Mon. Not. R. Astron. Soc. 174, 51P.Google Scholar
Whiteoak, J.B. and Gardner, F.F.: 1976b, Mon. Not. R. Astron. Soc. 176, 25P.Google Scholar
Whiteoak, J.B. and Gardner, F.F.: 1976c, Proc. Astron. Soc. Aust. 3, 71.CrossRefGoogle Scholar
Whiteoak, J.B. and Gardner, F.F.: 1976d, Mon. Not. R. Astron. Soc. 174, 627.Google Scholar
Whiteoak, J.B. and Gardner, F.F.: 1978, submitted to Mon. Not. R. Astron. Soc. Google Scholar