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We present subarcsecond resolution infrared (IR) imaging and mid-IRspectroscopic observations of the Seyfert 1.9 galaxy NGC 2992, obtained withthe Gemini North Telescope and the Gran Telescopio CANARIAS (GTC). The N-bandimage reveals faint extended emission out to ~3 kpc, and the PAH featuresdetected in the GTC/CanariCam 7.5-13 micron spectrum indicate that the bulk ofthis extended emission is dust heated by star formation. We also reportarcsecond resolution MIR and far-IR imaging of the interacting system Arp 245,taken with the Spitzer Space Telescope and the Herschel Space Observatory.Using these data, we obtain nuclear fluxes using different methods and findthat we can only recover the nuclear fluxes obtained from the subarcsecond dataat 20-25 micron, where the AGN emission dominates. We fitted the nuclear IRspectral energy distribution of NGC 2992, including the GTC/CanariCam nuclearspectrum (~50 pc), with clumpy torus models. We then used the best-fittingtorus model to decompose the Spitzer/IRS 5-30 spectrum (~630 pc) in AGN andstarburst components, using different starburst templates. We find that,whereas at shorter mid-IR wavelengths the starburst component dominates (64% at6 micron), the AGN component reaches 90% at 20 micron. We finally obtained dustmasses, temperatures and star formation rates for the different components ofthe Arp 245 system and find similar values for NGC 2992 and NGC 2993. Thesemeasurements are within those reported for other interacting systems in thefirst stages of the interaction.

The nuclear and extended infrared emission of the Seyfert galaxy NGC 2992 and the interacting system Arp 245