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17P/Holmes: Contrast in activity between before and after the 2007 outburst
Masateru Ishiguro, Yoonyoung Kim, Dhanraj S. Warjurkar +9
A Jupiter-family comet, 17P/Holmes, underwent outbursts in 1892 and 2007. In particular, the 2007 outburst is known as the greatest outburst over the past century. However, little…
Low-Resolution Spectrum of the Zodiacal Light with AKARI InfraRed Camera
Kohji Tsumura, Toshio Matsumoto, Shuji Matsuura +3
We present the near- and mid-infrared zodiacal light spectrum obtained with the AKARI Infra-Red Camera (IRC). A catalog of 278 spectra of the diffuse sky covering a wide range of G…
High-resolution Imaging of the Gegenschein and the Geometric Albedo of Interplanetary Dust
Masateru Ishiguro, Hongu Yang, Fumihiko Usui +5
We made optical observations of the Gegenschein using a liquid-nitrogen-cooled wide-field camera, Wide-field Imager of Zodiacal light with ARray Detector (WIZARD), between March 20…