Dust in the Radio Galaxy and Merger Remnant NGC 1316 (Fornax A)

摘要: We present dust maps of NGC 1316 (Fornax A), a well-studied early-type galaxy located in the outskirts Fornax cluster. used Large APEX BOlometer CAmera (LABOCA), operating at 870 micron with an angular resolution 19.5 arcseconds on Atacama Pathfinder EXperiment (APEX) 12m submillimeter telescope Chile and Wide-field Infrared Survey Explorer (WISE). WISE observes four mid-infrared bands centered 3.4, 4.6, 12 22 resolutions ranging from 6 to arcseconds. The LABOCA reveal emission central 2 arcminutes 1316. disturbed optical morphology many shells loops, complex distribution molecular gas our are evidences past merger activity or accretion galaxy. Combining flux measurement existing mid- far-infrared measurements, we estimate temperature cold (~20 K) warm (~55 components This study will be extended other southern radio galaxies remnants. Those good targets for future observations higher sensitivity ALMA probe interaction jets dusty near active galactic nuclei.