Combining the AKARI Point Source Catalog and the 37-month Monitor of All-sky X-ray Image (MAXI) catalog, the infrared and X-ray properties of nearby active galactic nuclei were investigated. The 37-month MAXI catalog tabulates 100 nearby Seyfert galaxies, 73 of which are categorized into Seyfert I galaxies. Among these Seyfert galaxies, 69 ones were found to have an AKARI infrared counterpart. For the Seyfert I galaxies in this sample, a well-known correlation was found between the infrared and X-ray luminosities. However, the observed X-ray luminosity of the Seyfert II galaxies tends to be lower for the infrared luminosity than the Seyfert I galaxies. This suggests that the X-ray absorption is significant in the Seyfert II galaxies. The Seyfert II galaxies seem to have a bimodal distribution of the IR color between 18 μm and 90 μm. Especially, a large fraction of the Seyfert II galaxies exhibits a redder IR color than the Seyfert I galaxies. A possible origin of the redder IR color is brie y discussed, in relation to the star formation activity in the host galaxy, and to the X-ray absorption.

ABSTRACT
1. INTRODUCTION
2. RESULT
    2.1. Source Identification
    2.2. IR to X-ray Luminosity Relation
    2.3. IR Color and X-ray Hardness
REFERENCES

• Naoki Isobe(Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA))
• Takao Nakagawa(Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA))
• Kenichi Yano(Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA)/Department of Physics, Graduate School of Science, The University of Tokyo)
• Shunsuke Baba(Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA)/Department of Physics, Graduate School of Science, The University of Tokyo)
• Shinki Oyabu(Graduate School of Science, Nagoya University)
• Yoshiki Toba(Research Center for Space and Cosmic Evolution, Ehime University)
• Yoshihiro Ueda(Department of Astronomy, Kyoto University)
• Taiki Kawamuro(Department of Astronomy, Kyoto University)