Multiwavelength Analysis of a Nearby Heavily Obscured AGN in NGC 449

We present the multiwavelength analysis of a heavily obscured active galactic nucleus (AGN) in NGC 449. We first constructed a broadband X-ray spectrum using the latest NuSTAR and XMM-Newton data. Its column density (similar or equal to 10(24) cm(-2)) and photon index (Gamma similar or equal to 2.4) were reliably obtained by analyzing the broadband X-ray spectrum. However, the scattering fraction and the intrinsic X-ray luminosity could not be well constrained. Combined with the information obtained from the mid-infrared spectrum and spectral energy distribution fitting, we derived its intrinsic X-ray luminosity (similar or equal to 8.54 x 10(42) erg s(-1)) and scattering fraction (f (scat) similar or equal to 0.26%). In addition, we also derived the following results. (1) The mass accretion rate of the central AGN is about 2.54 x 10(-2) M (circle dot) yr(-1), and the Eddington ratio is 8.39 x 10(-2). (2) The torus of this AGN has a high gas-to-dust ratio (N (H)/A (V) = 8.40 x 10(22) cm(-2) mag(-1)). (3) The host galaxy and central AGN are both in the early stage of coevolution.