@inproceedings{oai:jaxa.repo.nii.ac.jp:00003035, author = {山村, 一誠 and 瀧田, 怜 and Gandhi, Poshak and Ladjal, Djazia and 植田, 稔也 and 松永, 典之 and 泉浦, 秀行 and GarciaLario, Pedro and Yamamura, Issei and Takita, Satoshi and Gandhi, Poshak and Ladjal, Djazia and Ueta, Toshiya and Matsunaga, Noriyuki and Izumiura, Hideyuki and GarciaLario, Pedro}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe}, month = {Mar}, note = {SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan, Results of infrared photometries and dust shell modeling of a peculiar object WISE J180956.27-330500.2 are presented. The object has shown a significant time variation of its SED in the last 30 years. The variation is understood as a formation and expansion of massive dust shell since late 1990’s. The object was suspected to be a red star in the optical wavelengths before the mass ejection, which allows us to hypothesize that the object is possibly the first example of the AGB star just experiencing an episodic mass loss after a thermal pulse. Observation of this object with SPICA after some 10 years from now will bring us an important clue to understand the stellar evolution and mass loss, as well as the chemistry in the thick circumstellar envelopes., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1730027058, レポート番号: JAXA-SP-17-010E}, pages = {269--271}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {WISE J180956.27-330500.2: A Candidate AGB star with Ongoing Episodic Mass Loss}, volume = {JAXA-SP-17-010E}, year = {2018} }