Using idealized merger simulations, we investigated the effect of AGN feedback on the star formation.
Unlike the previous studies, we varied many parameters such as mass ratio between two galaxies, B/T ratio, gas fraction, etc.
Our main conclusions are as follows:
1) AGN suppresses star formation more efficiently in a major merger than in a minor merger.
2) AGN feedback wipes out the difference in star formation made by different B/T ratio.
3) It is difficult to reproduce the trends seen in observational studies with the current AGN prescriptions.
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