Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-26T03:28:11.364Z Has data issue: false hasContentIssue false

Low-Ionization Balqsos: Warm Ultraluminous Galaxies at High Redshifts

Published online by Cambridge University Press:  25 May 2016

E. Egami*
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Postfach 1603, D-85740 Garching, Germany

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.

A decade ago Sanders et al. (1988a, b) proposed a possible QSO formation scenario as a sequence of Galaxy Mergers → Ultraluminous IR Galaxies (ULIRGs) → Warm ULIRGs → QSOs. Since then, this proposal has become a paradigm against which all the subsequent observations will be compared. Fortunately for us, this paradigm makes two specific predictions: that is, 1) ULIRGs are powered by hidden AGNs, and 2) ULIRGs should be more abundant at z ~ 2, where the comoving density of optically-selected QSOs is sharply peaking up.

Type
Deep Fields & Evolution
Copyright
Copyright © Kluwer 1999 

References

Boroson, T.A., & Meyers, K.A. 1992, ApJ, 397, 442 Google Scholar
Egami, E. 1998, in preparation Google Scholar
Egami, E., Iwamuro, F., Maihara, T., Oya, S., & Cowie, L.L. 1996, AJ, 112, 73 CrossRefGoogle Scholar
Genzel, R., Lutz, D., Sturm, E., Egami, E., Kunze, D., Moorwood, A.F.M., Rigopoulou, D., Spoon, H.W.W., Sternberg, A., Tacconi-Garman, L.E., Tacconi, L., & Thatte, N. 1998, Ap J, in press.Google Scholar
Lipari, S. 1994, ApJ, 436, 102 Google Scholar
Lipari, S., Colina, L., & Macchetto, F. 1994, ApJ, 427, 174 Google Scholar
Low, F.J., Cutri, R.M., Kleinmann, S.G., & Huchra, J.P. 1989, ApJ, 340, L1 CrossRefGoogle Scholar
Sanders, D.B., Soifer, B.T., Elias, J.H., Madore, B.F., Matthews, K., Neugebauer, G., & Scoville, N.Z. 1988a, ApJ, 325, 74 CrossRefGoogle Scholar
Sanders, D.B., Soifer, B.T., Elias, J.H., Neugebauer, G., & Matthews, K. 1988b, ApJ, 328, L35 Google Scholar
Smith, P.S., Schmidt, G.D., Allen, R. G., & Angel, J.R.P. 1995, ApJ, 444, 146 Google Scholar
Sprayberry, D., & Foltz, C.B. 1992, ApJ, 390, 39 Google Scholar
Veilleux, S., Sanders, D.B., & Kim, D.C. 1997, ApJ, 484, 92 Google Scholar
Voit, G.M., Weymann, R.J., & Korista, K.T. 1993, ApJ, 413, 95 CrossRefGoogle Scholar
Weymann, R.J., Morris, S.L., Foltz, C.B., & Hewett, P.C. 1991, ApJ, 373, 23 Google Scholar