@inproceedings{oai:jaxa.repo.nii.ac.jp:00003111, author = {稲見, 華恵 and 松原, 英雄 and Armus, Lee and Charmandaris, Vassilis and DiazSantos, Tanio and Surace, Jason and Stierwalt, Sabrina and GOALS Team and Inami, Hanae and Matsuhara, Hideo and Armus, Lee and Charmandaris, Vassilis and DiazSantos, Tanio and Surace, Jason and Stierwalt, Sabrina and GOALS Team}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life}, month = {Mar}, note = {第4回「あかり」国際会議 (2017年10月17-20日. 東京大学), 文京区, 東京, The 4th AKARI International Conference: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life (October 17-20, 2017. The University of Tokyo), Bunkyo-ku, Tokyo, Japan, We have combined AKARI 2.5-5 micrometers and Spitzer 5.2-38 micrometers spectra of 145 local luminous infrared galaxies (LIRGs) drawn from the Great Observatories All-sky LIRG Survey (GOALS). The equivalent widths (EQWs) of the polycyclic aromatic hydrocarbon (PAH) emission features detected at 3.3 micrometers and 6.2 micrometers, the two most commonly used indicators for classifying the central energy sources (starburst or active galactic nucleus, AGN), do not appear to be linearly correlated. Moreover, about 30% of the AGN-dominated galaxies classified by the 3.3 micrometers PAH EQW are, on the contrary, suggested to be starburst-dominated galaxies by the 6.2 micrometers PAH EQW. We find that the Spitzer spectra of the sources with low 3.3 micrometers PAH EQW but high 6.2 micrometers PAH EQW are remarkably similar to the spectra of pure starburst sources. However, their 2-5 micrometers continua in AKARI spectra are much bluer, suggesting that the continuum is dominated by stellar emission rather than hot dust emission. Based on these results, we suggest a revised diagnostic using the 3.3 micrometers PAH EQW and the continuum color. We also report on a possible diagnostic with the capabilities of the James Webb Space Telescope (JWST) based on the results from the AKARI and Spitzer data., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1730026037, レポート番号: JAXA-SP-17-009E}, pages = {221--224}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {The AKARI Spectra of Luminous Infrared Galaxies in the Local Universe}, volume = {JAXA-SP-17-009E}, year = {2018} }