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Astron. Astrophys. 355, 922-928 (2000)

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The FIR-radio correlation of Wolf-Rayet galaxies and the role of star formation in LINERs

L. Ji, Y. Chen, J.H. Huang, Q.S. Gu and S.J. Lei

Department of Astronomy, Nanjing University, Nanjing 210093, P.R. China

Received 14 October 1999 / Accepted 20 January 2000


We find that a preliminary classification of LINERs' energetics may be made in terms of the FIR-radio correlation of Wolf-Rayet galaxies. The AGN- or starburst-supported LINERs can be distinguished by their FIR-to-radio ratio, [FORMULA] [FORMULA] or [FORMULA]. It is interesting to note that almost all the LINERs with inner rings might be starburst-supported, indicating reduced AGN activities compared with those of the AGN-supported ones. We also find that a shock-heating phase for the warm dust component might be important for some starbursts at the burst age of [FORMULA] yr, with [FORMULA].

Key words: galaxies: active – infrared: galaxies – radio continuum: galaxies

© European Southern Observatory (ESO) 2000

Online publication: March 21, 2000