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The Nearby QSO Host I Zw 1: NIR Probing of Structural Properties and Stellar Populations

J. Scharwaechter·A. Eckart·S. Pfalzner·J. Moultaka·C. Straubmeier·J. Staguhn·E. Schinnerer
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Abstract

The likely merger process and the properties of the stellar populations in the I Zw 1 host galaxy are analyzed on the basis of multi-wavelength observations (with the ISAAC camera at the Very Large Telescope (VLT/UT1) of the European Southern Observatory (ESO), Chile (Paranal), with the interferometer of the Berkeley-Illinois-Maryland Association (BIMA), USA (Hat Creek/California), and with the IRAM Plateau de Bure Interferometer (PdBI), France) and N-body simulations. The data give a consistent picture of I Zw 1, with properties between those of ultra-luminous infrared galaxies (ULIRGs) and QSOs as displayed by transition objects in the evolutionary sequence of active galaxies.

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J. Scharwaechter, A. Eckart, S. Pfalzner, J. Moultaka, C. Straubmeier, J. Staguhn, E. Schinnerer. 2003-11-03. The Nearby QSO Host I Zw 1: NIR Probing of Structural Properties and Stellar Populations. https://doi.org/10.1007/978-3-642-18902-9_24

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