A detailed map of the central 10°×10°region of the Galaxy has been obtained using a balloon-borne near-infrared photometer at 2.4μm. The surface brightness distribution with 0.4°resolution exhibits a number of absorption features suggesting a complex structure of interstellar obscuration in the central domain. Several isolated dust clouds are clearly revealed by subtracting the contribution of the disk brightness, which are supposed to be situated in the innermost region. The identified clouds are compared with other observations such as radio and far-infrated maps.
銀河中心部 10°×10°領域の近赤外輝度分布と星間ダスト雲の同定
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