Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-01T21:11:33.595Z Has data issue: false hasContentIssue false
  • English
  • Français

21-cm Probes of Redshifted Clouds

Published online by Cambridge University Press:  14 August 2015

A. M. Wolfe
A. M. Wolfe*
Affiliation:
University of California, San Diego and University of Pittsburgh

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.

21 cm studies, carried out with the 305 m telescope at Arecibo, of absorption-line clouds in QSOs have resulted in the following discoveries: (a) A search for 21 cm absorption in redshift systems selected for exhibiting Mg II/Fe II absorption in radio-bright QSOs resulted in the detection of a z ≈ 0.4 21 cm line in PKS 1229–02; (b) the detection of 21 cm absorption at z ≈ 1.8 in MC3 1331+170; and (c) the discovery of 21 cm emission from regions ~ 100 kpc distant from the ScI galaxy NGC 628, that occurred during a search for outlying H I in a complete sample of spiral galaxies.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 92: Objects of High Redshift , 1980 , pp. 153 - 159
Copyright
Copyright © Reidel 1980 

References

Bahcall, J.N. and Spitzer, L.: 1969, Ap. J. Lett. 156, L63.Google Scholar
Briggs, F.H.: 1980, in preparation.Google Scholar
Briggs, F.H. and Wolfe, A.M.: 1980, in preparation.Google Scholar
Briggs, F.H., Wolfe, A.M., Krumm, N., and Salpeter, E. E.: 1980, submitted to the Ap. J. Google Scholar
Carswell, R. F., Hilliard, R. L., Strittmatter, P. A., Taylor, D. J., and Weymann, R. J.: 1975, Ap. J. 196, 351.Google Scholar
Field, G.B.: 1959, Ap. J. 129, 551.Google Scholar
Hegge, E. K., Liebert, J. L., and Strittmatter, P. A.: 1979, private comm.Google Scholar
Searle, L. and Zinn, R.: 1978, Ap. J. 225, 357.Google Scholar
Smith, H.E., Burbidge, E.M., and Junkkarinen, V.T.: 1977, Ap. J. 218, 611.Google Scholar
Spitzer, L.: 1978, “Physical Processes in the Interstellar Medium” (New York: Interscience).Google Scholar
Weymann, R. J., Williams, R.E., Peterson, B.M., and Turnshek, D. A.: 1979, preprint.Google Scholar
Wolfe, A.M.: 1979, “Active Galactic Nuclei” (eds. Hazard, C. and Mitton, S.), p. 159 (Cambridge University: Cambridge).Google Scholar
Wolfe, A.M.: 1980, to appear in Physica Scripta.Google Scholar
Wolfe, A. M., Broderick, J. J., Condon, J. J., and Johnston, K. J.: 1978, Ap. J. 222, 752.CrossRefGoogle Scholar
Wolfe, A.M. and Davis, M. M.: 1979, A. J. 84, 699.CrossRefGoogle Scholar