Intrinsic Absorption in the Spectrum of I Zw 1

Details Intrinsic Absorption in the Spectrum of I Zw 1 Intrinsic Absorption in the Spectrum of I Zw 1

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342010r&link_type=abstract

American Astronomical Society, AAS Meeting #213, #420.10; Bulletin of the American Astronomical Society, Vol. 41, p.237

Astronomy and Astrophysics

Astronomy

Scientific paper

Nuclear mass loss is an important component of the overall structure and evolution of Seyfert galaxies and their environments. We present a detailed look into the basic properties of the O VI absorption in the outflow gas from the Seyfert 1 galaxy I Zw 1 (UGC 00545) using pipeline-calibrated data from the archives of the Far Ultraviolet Spectroscopic Explorer, covering a spectral range of 900 Å to 1200 Å. We use continuum and emission line fits constructed with the IRAF tool specfit to measure the absorption properties from the normalized spectrum. We calculate the velocity-dependent effective covering fraction and column density of the O VI gas over several velocity components. We compare this to the properties already measured at lower resolution in C IV and N V absorption data from the Faint Object Spectrograph on the HST and in more highly ionized species in the X rays from XMM-Newton data.

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