The evolution of merger fraction of galaxies at z < 0.6 depending on the
  star formation mode in the AKARI NEP Wide field
  We study the galaxy merger fraction and its dependence on star formation mode
in the5.4 square degrees of the North Ecliptic Pole-Wide field. We select 6352
galaxies withAKARI 9{\mu}m detections, and identify mergers among them using
the Gini coefficientand M20derived from the Subaru/HSC optical images. We
obtain the total infraredluminosity and star formation rate of galaxies using
the spectral energy distributiontemplates based on one band, AKARI 9{\mu}m. We
classify galaxies into three differentstar formation modes (i.e. starbursts,
main sequence, and quiescent galaxies) andcalculate the merger fractions for
each. We find that the merger fractions of galaxiesincrease with redshift
atz<0.6. The merger fractions of starbursts are higher thanthose of main
sequence and quiescent galaxies in all redshift bins. We also examinethe merger
fractions of far-infrared detected galaxies which have at least one
detectionfromHerschel/SPIRE. We find thatHerscheldetected galaxies have higher
mergerfraction compared to non-Herscheldetected galaxies, and
bothHerscheldetected andnon-Herscheldetected galaxies show clearly different
merger fractions depending onthe star formation modes.
