AKARI Infrared Imaging of Reflection Nebulae IC4954 and IC4955
Ohyama, Y.; Takagi, T.; Matsuhara, H.; Oyabu, S.; Wada, T.; Nakagawa, T.; Okada, Y.; Usui, F.; Onaka, T.; Shibai, H.; Tanabé, T.; Kim, W.; Sakon, I.; Murakami, H.; Kaneda, H.; Ita, Y.; Ishihara, D.; Kataza, H.; Matsumoto, T.; Ueno, M.; Fujishiro, N.; Uemizu, K.; Watarai, H.; Kii, T.; Suzuki, T.; Doi, Y.; Fujiwara, H.; Makiuti, S.; Stephen, S.
Abstract
We present the observations of the reflection nebulae IC4954 and IC4955 region with the Infrared Camera and the Far-Infrared Surveyor (FIS) on board the infrared astronomical satellite AKARI during its performance verification phase. We obtained 7 band images from 7 to 1601° around the IC4954/4955 region was created from the AKARI mid-infrared All-Sky Survey data. Together with the HI 21cm data, it suggests a large hollow structure of a degree scale, on whose edge the IC4954/4955 region has been created, indicating star formation over three generations in largely different spatial scales.