Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Hirohisa, Hara"'
Autor:
Hiroyuki A. Sakaue, Daiji Kato, Norimasa Yamamoto, Izumi Murakami, Hirohisa Hara, Nobuyuki Nakamura
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 1, p 14 (2023)
We present the energy dependence of the intensity ratio between the 3 s 3 p ^3 P _2 —3 s 3 d ^3 D _3 transition at 233.9 Å and the 3 s 3 p ^1 P _1 —3 s 3 d ^1 D _2 transition at 243.8 Å in Fe xv studied with an electron beam ion trap over an en
Externí odkaz:
https://doaj.org/article/69b2bb7f0d78434eb22d14458f46d86e
Autor:
Nagaaki Kambara, Tomoko Kawate, Tetsutarou Oishi, Yasuko Kawamoto, Hiroyuki A. Sakaue, Daiji Kato, Nobuyuki Nakamura, Hirohisa Hara, Izumi Murakami
Publikováno v:
Atoms, Vol 9, Iss 3, p 60 (2021)
The intensity ratio of Fe XIV 264.765A/274.203A is useful to determine the electron density of solar corona, and the relationship between the electron density and the intensity ratio obtained from a model should be evaluated using laboratory plasmas
Externí odkaz:
https://doaj.org/article/4af35316cb8c4419850b19e9d19cc761
Autor:
Donguk Song, Ryohko Ishikawa, Ryouhei Kano, David E. McKenzie, Javier Trujillo Bueno, Frédéric Auchère, Laurel A. Rachmeler, Takenori J. Okamoto, Masaki Yoshida, Ken Kobayashi, Christian Bethge, Hirohisa Hara, Kazuya Shinoda, Toshifumi Shimizu, Yoshinori Suematsu, Bart De Pontieu, Amy Winebarger, Noriyuki Narukage, Masahito Kubo, Taro Sakao, Andrés Asensio Ramos, Luca Belluzzi, Jiří Štěpán, Mats Carlsson, Tanausú del Pino Alemán, Ernest Alsina Ballester, Genevieve D. Vigil, Jorrit Leenaarts
Publikováno v:
Solar Physics. 297
Autor:
Takayoshi Oba, Toshifumi Shimizu, Yukio Katsukawa, Masahito Kubo, Yusuke Kawabata, Hirohisa Hara, Fumihiro Uraguchi, Toshihiro Tsuzuki, Tomonori Tamura, Kazuya Shinoda, Kazuhide Kodeki, Kazuhiko Fukushima, José Miguel Morales Fernández, Antonio Sánchez Gómez, María Balaguer Jimenéz, David Hernández Expósito, Achim Gandorfer
Publikováno v:
Solar Physics
We developed a scan mirror mechanism (SMM) that enable a slit-based spectrometer or spectropolarimeter to precisely and quickly map an astronomical object. The SMM, designed to be installed in the optical path preceding the entrance slit, tilts a fol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3d653b078ca76a606225ae067ad9f1a
http://hdl.handle.net/10261/283411
http://hdl.handle.net/10261/283411
Autor:
Yusuke Kawabata, Yukio Katsukawa, Toshihiro Tsuzuki, Fumihiro Uraguchi, Kenji Mitsui, Kazuya Shinoda, Tomonori Tamura, Yoshifumi Nodomi, Hirohisa Hara, Masahito Kubo
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy IX.
Autor:
Yukio Katsukawa, Hirohisa Hara, Masahito Kubo, Yusuke Kawabata, Takayoshi Oba, Javier Piqueras Carreño, Isabel Pérez Grande, Kazuya Shinoda, Tomonori Tamura, Fumihiro Uraguchi, Toshihiro Tsuzuki, Yoshifumi Nodomi, Toshifumi Shimizu, Antonio Carlos López Jiménez, María Balaguer Jiménez, Daniel Álvarez García
Ground-based and airborne instrumentation for astronomy IX (2022), Montreal, jul 17-22, 2022.--Proceedings of SPIE - The International Society for Optical Engineering vol. 12184 Article number 121842B
The Sunrise Chromospheric Infrared spectroPo
The Sunrise Chromospheric Infrared spectroPo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9b63a013d1f28a77846d7796ca2b25d
http://hdl.handle.net/10261/304611
http://hdl.handle.net/10261/304611
Autor:
Tomoko Kawate, Izumi Murakami, Nagaaki Kambara, Daiji Kato, Yasuko Kawamoto, Hiroyuki A. Sakaue, Hirohisa Hara, Tetsutarou Oishi, Nobuyuki Nakamura
Publikováno v:
Atoms, Vol 9, Iss 60, p 60 (2021)
Atoms
Volume 9
Issue 3
Atoms
Volume 9
Issue 3
The intensity ratio of Fe XIV 264.765A/274.203A is useful to determine the electron density of solar corona, and the relationship between the electron density and the intensity ratio obtained from a model should be evaluated using laboratory plasmas
Autor:
Yoshinori Suematsu, Hirohisa Hara, T. Kawate, Toshifumi Shimizu, Kiyoshi Ichimoto, Yukio Katsukawa, Shinsuke Imada
Publikováno v:
International Conference on Space Optics — ICSO 2020.
The EUV High-Throughput Spectroscopic Telescope (EUVST) of Solar-C mission is a revolutionary spectrometer that is designed to provide high-quality and high cadence spectroscopic data covering a wide temperature range of the chromosphere to flaring c
Autor:
Masaki Yoshida, Alberto Sainz Dalda, Mats Carlsson, Laurel A. Rachmeler, Genevieve D. Vigil, Ernest Alsina Ballester, Ken Kobayashi, Toshifumi Shimizu, Luca Belluzzi, Frédéric Auchère, Tanausú del Pino Alemán, Ryouhei Kano, Noriyuki Narukage, Bart De Pontieu, Amy R. Winebarger, Jiri Stepan, Masahito Kubo, Yoshinori Suematsu, Javier Trujillo Bueno, Christian Bethge, Takenori J. Okamoto, David E. McKenzie, Ryohko Ishikawa, Taro Sakao, Jorrit Leenaarts, Andrés Asensio Ramos, Hirohisa Hara, Donguk Song
Publikováno v:
Science Advances
Routine ultraviolet imaging of the Sun's upper atmosphere shows the spectacular manifestation of solar activity; yet we remain blind to its main driver, the magnetic field. Here we report unprecedented spectropolarimetric observations of an active re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f855f3d753e9f4dfb8da2fa061a75f3e
Autor:
Conrad Schwanitz, Louise K. Harra, Alphonse C. Sterling, Alejandro Moreno Vacas, David Orozco Suárez, Hirohisa Hara, Jose Carlos del Toro Iniesta, N.-E. Raouafi
Publikováno v:
Solar Physics
Solar Physics, 296 (12)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Solar Physics, 296 (12)
Digital.CSIC. Repositorio Institucional del CSIC
instname
This Open Access article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5acbbe3b55105c98dc71423d20494ef