We disabled creating new profiles from external networks. If you have a legitimate need to create a new user profile for this site, please contact DSI staff ("Contact" below).



Antoine Dumont
University of Utah

Surprisingly strong k-band dust emission found in LLAGNs

Looking towards the future, the era of JWST will provide unparalleled sensitivity at infrared (IR) wavelengths, making the IR a powerful tool to study accretion processes in luminous AGN in the distant universe and in the search for intermediate-mass black holes (IMBH) and low-luminosity AGN in the local universe. In this work, we discuss what is known about AGN emission in the near-infrared (NIR) accretion regime and present NIR fluxes for 15 low-luminosity AGN in the local universe. Our sample includes multiple galaxies with BH masses of $\leq10^{6} \: M_{\odot}$. We use integral field spectroscopy to decompose the stellar emission and AGN continuum component. This AGN component appears to be thermal emission from hot dust, as also seen in higher luminosity AGN. We compare the ratio of NIR and X-ray luminosities in our sample and in higher luminosity AGN, and find that this ratio increases at lower accretion rates. Furthermore, objects at low Eddington ratios frequently have a higher luminosity in the NIR than they do in the X-ray. These observations suggest NIR spectroscopy will be an important tool for detecting BH accretion, especially at lower luminosities.