@inproceedings{oai:jaxa.repo.nii.ac.jp:00005016,
 author = {齋藤, 彗 and 辻本, 匡弘 and 海老沢, 研 and 石田, 学 and Saitou, Kei and Tsujimoto, Masahiro and Ebisawa, Ken and Ishida, Manabu},
 book = {宇宙航空研究開発機構特別資料:, JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H},
 month = {Feb},
 note = {The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan, We report on the results of Suzaku and RXTE X-ray observations of XSS J12270-4859, one of the hard X-ray sources in the INTEGRAL catalogue. From optical spectroscopic characteristics and a report of putative X-ray periodicity of  approximately 860 s, the object was once classified as an intermediate polar (IP). Our Suzaku observation revealed a lack of the Fe Kalpha emission in a power-law spectrum and exotic phenomena in the light curve such as (1) repetitive rapid flux amplification, (2) sudden flux declines with no periodicity, and (3) spectral hardening. We also analyzed archival RXTE data, confirming flux variations similar to those found in Suzaku, and found that the previously reported 860 s period is interpreted by semi-regularly repeated flares. These timing behaviors and the power-law spectrum suggest that XSS J12270-4859 is a low-mass X-ray binary rather than an IP. Some of the temporal characteristics are also similar to those of the type II bursters, making XSS J12270-4859 a very rare type II burster candidate., Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science, 資料番号: AA0064574084, レポート番号: JAXA-SP-09-008E},
 pages = {224--225},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {Suzaku observation of the enigmatic hard X-ray source XSS J12270-4859},
 volume = {JAXA-SP-09-008E},
 year = {2010}
}