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The QSO Hosts I Zw 1 and 3C 48: Prototypes of a Merger-Driven Quasar Evolution?

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Dense Molecular Gas Around Protostars and in Galactic Nuclei

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Abstract

I Zw 1 and 3C 48 are two neighboring template objects at a later stage of the hypothesized merger-driven evolutionary sequence from ultra-luminous infrared galaxies (ULIRGs) to quasi-stellar objects (QSOs). Since galaxy mergers are assumed to trigger the evolution, it is important to confirm the merger properties of transitionary objects. Using multi-wavelength observations and N-body simulations, the merger histories of I Zw 1 and 3C 48 have been investigated in two separate case studies. Here, the results from both studies are compared and their relevance for the evolutionary hypothesis is discussed.

This research is partly based on observations with ISAAC at the Very Large Telescope (VLT) of the European Southern Observatory (ESO) under projects 67.B-0009 and 67.B-0019.

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Authors and Affiliations

  1. I. Physikalisches Institut der Universität zu Köln, Zülpicher Str. 77, 50937, Köln, Germany

    Julia Scharwächter, Andreas Eckartl, Susanne Pfalznerl, Jens Zuther & Melanie Krips

  2. NRAO, Socorro, NM, USA

    Eva Schinnerer

  3. NASA/Goddard Space Flight Center, Greenbelt, MD, USA

    Johannes Staguhn

Authors
  1. Julia Scharwächter
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  2. Andreas Eckartl
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  3. Susanne Pfalznerl
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  4. Jens Zuther
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  5. Melanie Krips
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  6. Eva Schinnerer
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  7. Johannes Staguhn
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Editor information

Editors and Affiliations

  1. ASTRON, Dwingeloo, the Netherlands

    W.A. Baan  & Y. Hagiwara  & 

  2. JIVE, Dwingeloo, the Netherlands

    H.J. van Langevelde

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Scharwächter, J. et al. (2005). The QSO Hosts I Zw 1 and 3C 48: Prototypes of a Merger-Driven Quasar Evolution?. In: Baan, W., Hagiwara, Y., van Langevelde, H. (eds) Dense Molecular Gas Around Protostars and in Galactic Nuclei. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3831-3_12

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  • DOI: https://doi.org/10.1007/1-4020-3831-3_12

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  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-3038-3

  • Online ISBN: 978-1-4020-3831-0

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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