We carried out a one-night optical V and near-infrared JHK
monitoring observation of the least luminous Seyfert 1 galaxy,
NGC 4395, on 2004 May 1, and detected for the first time the
intraday flux variations in the J and H bands, while such
variation was not clearly seen for the K band. The detected
J and H variations are synchronized with the flux variation
in the V band, which indicates that the intraday-variable
component of near-infrared continuum emission of the NGC 4395
nucleus is an extension of power-law continuum emission to
the near-infrared and originates in an outer region of the
central accretion disk. |