Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-26T03:45:30.992Z Has data issue: false hasContentIssue false
  • English
  • Français

Supposed history of our Galaxy

Published online by Cambridge University Press:  04 August 2017

Wilhelmina Iwanowska
Wilhelmina Iwanowska*
Affiliation:
Institute of Astronomy N. Copernicus University, Torun, Poland

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.

Looking back with modern instrumentation like that at Westerbork to possible progenitors of galaxies, we find at increasing redshifts active galaxies, radio galaxies, BL Lac objects and quasars. With improving instrumental sensitivity and resolving power, energetic activity is discovered in these objects: ejecta of millions of solar masses, mostly bipolar, were thrown out from the central bodies to hundreds of kiloparsecs at nearly luminal speeds. The rich variety of their structures and energetics is illustrated in a review paper by Miley (1980). Like miniatures of these phenomena, ejections of 10–100 M⊙ with speeds of 10–100 km s-1 appear in star-forming regions of our Galaxy.

Type
PART III: Dynamics and Evolution
Information
Symposium - International Astronomical Union , Volume 106: The Milky Way Galaxy , 1985 , pp. 611 - 612
Copyright
Copyright © Reidel 1985 

References

Ambartsumian, V.A.: 1980, Ann. Rev. Astron. Astrophys. 18, 1 Google Scholar
Mayer, G.M. and Teller, E.: 1950, Rev. Mod. Phys. 22, 203 Google Scholar
Miley, G.K.: 1980, Ann. Rev. Astron. Astrophys. 18, 165 Google Scholar
Oort, J.H.: 1985, these Proceedings, section II.7 Google Scholar
Pismis, P.: 1979, in I.A.U. Symposium 84, “Large-scale characteristics of the Galaxy”, ed. Burton, W.B., Dordrecht: Reidel, p. 145.Google Scholar