Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-27T06:21:06.687Z Has data issue: false hasContentIssue false
  • English
  • Français

Survey of NH3 in the Southern Hemisphere

Published online by Cambridge University Press:  25 April 2016

E. Scalise Jr., ,
R. E. Schaal ,
Y. Bakor ,
J. W. Vilas Boas  and
P. C. Myers
E. Scalise Jr.,
Affiliation:
CRAAMIINPE: Instituto de Pesquisas Espaciais, São Paulo, Brasil
R. E. Schaal
Affiliation:
CRAAMIINPE: Instituto de Pesquisas Espaciais, São Paulo, Brasil
Y. Bakor
Affiliation:
CRAAMIINPE: Instituto de Pesquisas Espaciais, São Paulo, Brasil
J. W. Vilas Boas
Affiliation:
CRAAMIINPE: Instituto de Pesquisas Espaciais, São Paulo, Brasil
P. C. Myers
Affiliation:
Massachusetts Institute of Technology
Get access Rights & Permissions [Opens in a new window]

Extract

Ammonia was searched in the direction of 46 sources placed in the southern hemisphere where H2CO or H2O was detected previously. Observations were carried out at Itapetinga Radio Observatory, Atibaia, Brazil using a 13.7 m paraboloid. The receiver used for these observations had a K-band ruby travelling wave maser as a preamplifier and the system temperature ranged from 250 to 300K. All sources were observed at least twice, each observation lasting for 30 minutes. The filter bank used consisted of 47 contiguous channels with 100 kHz bandwidth. Results are presented on Table 1 — Positive results and Table 2 — Negative results.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 4 , Issue 2 , 1981 , pp. 250 - 251
Copyright
Copyright © Astronomical Society of Australia 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Batchelor, R. A., Gardner, F. F., Knowles, S. H. and Mebold, U., Proc. Astron. Soc. Aust., 3, 152 (1977).Google Scholar
Batchelor, R. A., Caswell, J. L., Goss, W. M., Haynes, R. F., Knowles, S. H. and Wellington, K. J., Aust. J. Phys., 33, 139 (1980).Google Scholar
Caswell, J. L., Batchelor, R. A., Haynes, R. F. and Huchtmeier, W. K., Aust. J. Phys., 27, 417 (1974).Google Scholar
Caswell, J. L., and Gardner, F. F., Proc. Astr. Soc. Aust., 3, 61 (1976).CrossRefGoogle Scholar
Gillespie, A. R., White, G. J. and Watt, G. D., Mont. Not. R. Astron. Soc. 186, 383 (1979).Google Scholar
Haynes, R. F., Caswell, J. L. and Simons, L. W. J., Austr. J. of Phys. Astrophys. Supp., 48, 1 (1979).Google Scholar
Kaufmann, P., Zisk, S., Scalise, E. Jr., Schaal, R. E., and Gammon, R. H., Astron. J. 82, 577 (1977).Google Scholar
Scalise, E. Jr., and Schaal, R. E., Astron. Astrophys. 57, 475 (1977).Google Scholar
Scalise, E. Jr. and Braz, M. A., Astron. Astrophys. 85, 149 (1980).Google Scholar
Schwartz, P. R., Cheung, A. C., Bologna, J. M., Chiu, M. F., Waak, J. A. and Matsakis, D., Astrophys. J., 218, 671 (1977).Google Scholar
Whiteoak, J. B. and Gardner, F. F., Astron. Astrophys. 37, 389 (1974).Google Scholar