Volume 397, Number 1, January I 2003
|Page(s)||109 - 114|
|Published online||11 December 2002|
The bends in the slopes of radial abundance gradients in the disks of spiral galaxies – Do they exist?
Main Astronomical Observatory of National Academy of Sciences of Ukraine, 27 Zabolotnogo str., 03680 Kiev, Ukraine
Corresponding author: email@example.com
Accepted: 1 October 2002
Spiral galaxies with a reported bend in the slope of gradient in the oxygen abundances (O/H), derived with traditionally used R23-method, were examined. It is shown that the artificial origin of the reported bends can be naturally explained. Two situations that result in a false bend in the slope of (O/H) gradient are indicated. It is concluded that at the present time there is no example of a galaxy with an undisputable established bend in the slope of the oxygen abundance gradient.
Key words: galaxies: abundances / galaxies: ISM / galaxies: spiral
© ESO, 2003
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