Quasistellar objects and seyfert galaxies

JAN 01, 1969

Are these two classes of distant objects related? Evolution of dense stellar clusters, so crowded with stars that collisions occur, yielding more massive stars and supernovae, could be the common origin of them both.

DOI: 10.1063/1.3035354

Stirling A. Colgate

CONCEPTS of the size and geometry of our observable universe depend largely on what we make of the mysterious, distant quasistellar objects. Seyfert galaxies, which have a bright nucleus at the center of an otherwise normal galaxy, have been another source of mystery. Observations of their optical and radio emissions show fluctuations. If we can find a relation between quasistellar objects and Seyfert galaxies, suggesting a similar origin and an evolutionary link, we may be able to use the fluctuating emission as a new yardstick for the universe.

References

1. E. M. Burbidge, G. R. Burbidge, A. R. Sandage, Rev. Mod. Phys. 35, 947 (1963).https://doi.org/RMPHAT
2. T. Gold, W. I. Axford, E. C. Ray, Quasistellar Sources and Gravitational Collapse, I. Robinson, A. Schild, E. Schucking, eds., University of Chicago Press (1965), page 93.
3. L. Woltjer, Nature 201, 803 (1964).https://doi.org/NATUAS
4. S. M. Ulam, W. E. Walden, Nature 201, 1202 (1964).https://doi.org/NATUAS
5. L. Spitzer, W. C. Saslaw, Astrophys. J. 143, 400 (1966).https://doi.org/ASJOAB
6. S. A. Colgate, Astrophys. J. 150, 163 (1967).https://doi.org/ASJOAB
7. M. Schmidt, Astrophys. J. 151, 393 (1968).https://doi.org/ASJOAB
8. F. Winsor, Space Child’s Mother Goose, Simon and Schuster (1958).
9. S. Tsuruta, A. G. W. Cameron, Can. J. Phys. 44, no. 8 (1966).https://doi.org/CJPHAD
10. R. L. Minkowski, Stars and Stellar Systems, L. H. Aller, B. M. Middlehurst, eds., University of Chicago Press (1967) 7, chapter 11.
11. E. M. Burbidge, G. R. Burbidge, W. A. Fowler, F. Hoyle, Rev. Mod. Phys. 29, 547 (1957).https://doi.org/RMPHAT
12. S. A. Colgate, A. G. W. Cameron, Nature 200, 870 (1963).https://doi.org/NATUAS
13. S. von Hoerner, Symposium on the n‐body problem, Paris, France (August 1967).
14. F. Seidl, A. G. W. Cameron, to be published.
15. P. S. De Young, W. I. Axford, Nuovo Cimento LBN2, 199 (1967).
16. S. A. Colgate, C. McKee, “Supernova Luminosity”, American Astronomical Society Meeting, Charlottesville, Va. (April 1968), to be published.
17. W. E. Drummond, Phys. Fluids 5, 1133 (1962).https://doi.org/PFLDAS

More about the Authors

Stirling A. Colgate. New Mexico Institute of Mining and Technology.