O.Hashimoto, H.L.Malasan
Report on 5-year cooperation in Astronomy between GAO-ITB
ITB-GAO Joint Workshop in Astronomy and Science Education 2007
2007-07
O.Hashimoto, H.L.Malasan, H.Taguchi, H.Takahashi
Gunma Astronomical Observatory Echelle Spectrograph (GAOES)
in GAO-ITB collaboration
ITB-GAO Joint Workshop in Astronomy and Science Education 2007
2007-07
O.Hashimoto, H.Taguchi, H.L.Malasan, K.Yoshioka
Spectroscopic Study of U Mon, an RV Tau type post AGB star
ITB-GAO Joint Workshop in Astronomy and Science Education 2007
2007-07
O.Hashimoto, S.Honda, H.Taguchi, H.Takahashi
Spectroscopic Observation of AGB stars at Gunma Astronomical
Observatory
AGB stars and related phenomena 2008-11
O.Hashimoto, H.Taguchi, S.Honda, K.Yoshioka
A spectroscopic study of U Mon an RV Tau type post-AGB star
The Hong Kong Workshop on Evolved Stars and Astrophysical Masers
2011-11
R.Iizuka, T.Matsumura, Y.Tsuboi, S.Ogawa, M.Akiyama, M.Higa, T.Umemoto,
T.Hirota, H.Hanayama, N.Tokimasa, J.Takahashi, A.Arai, Shin-ya Narusawa,
O.Hashimoto, H.Tkahahshi, H.Maehara, D.Nogami, K.Ayani, M.Isogai,
O.Oshima, M.Fujii, K.Nagai, H.Itoh, K.Shiokawa, S.Kiyota
"Simultaneous multi-wavelength observations of large flare stars"
Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe
2014-02
A.Kawagoe, Y.Tsuboi, Y.Sugawara, Y.Maehara, O.Hashimoto, S.Honda,
K.Morihana, R.Iizuka, M.Higa, R.Usui, H.Negoro, and MAXI team
"The nature of the giant flare star HD347929 detected with MAXI/GSC"
Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe
2014-02
O.Hashimoto, S.Yamano, A.Igarashi
"Gunma Astronomical Observatory, a pubulic observetory with a large
telescope"
Inernational Symposium on the NAOJ Museum, 2015-09
O.Hashimoto
"Effective understanding of astrophysics through direct experiences
of stellar spectra seen by large telescopes at public observatories"
Astronomy museums, visitor centres & public observatories workshop
2017-09
O.Hashimoto, H.Taguchi, H.L.Malasan
"Scientific activities with a 1.5 meter telescope at Gunma Astronomical Observatory"
Southeast Asia-Regional Astronomy Seminar (SARAS2021),
Universiti Malaya
2021-09
O.Hashimoto
"High resolution spectroscopy"
The international Virtual Course (IVC) on binary and Variable Stars
Astrophysical Observation Program, Bundung Institute of Technology (ITB)
2023-07