UVOT imaging of M81 and Holmberg IX

We present Swift UV/Optical Telescope (UVOT) imaging of the galaxies M81 and Holmberg IX. We combine UVOT imaging in three near-ultraviolet (NUV) filters (uvw2: 1928{AA}; uvm2:...本研究呈现了针对星系M81与霍尔姆伯格IX（Holmberg IX）的斯威夫特紫外/光学望远镜（Swift UV/Optical Telescope）成像数据。我们整合了三台近紫外（NUV）滤光片（uvw2：1928埃；uvm2：……）下的该望远镜成像数据。