In Pursuit of Supernova Remnants

 
Exploring Extreme Cosmic Phenomena through Multi-Messenger Astronomy and Theoretical Studies

Scientific Information

In Pursuit of Supernova Remnants

 
Supernova remnants (SNRs) have a profound influence on the interstellar medium (ISM) through the formation of strong shocks, the injection of heavy elements, and the acceleration of cosmic rays. Over the past decade, observational and theoretical studies have increasingly demonstrated that the inhomogeneous nature of the surrounding ISM is essential for understanding a wide range of high-energy physical processes associated with SNRs.
 
Dense interstellar clouds can survive shock erosion and subsequently produce hadronic gamma-ray emission and amplify magnetic turbulence. High-resolution X-ray spectroscopy has revealed emission signatures associated with interactions with cold ISM clouds, as well as complex and asymmetric motions of plasma and ejecta. In parallel, magnetohydrodynamic simulations have introduced a new perspective on shock propagation through a clumpy medium, enabling direct and quantitative comparisons between numerical models and observations.
 
Providing regular opportunities for observers and theorists to gather, share recent results, and engage in in-depth discussions on supernova remnants (SNRs) is therefore critically important, not only for advancing our scientific understanding but also for fostering the long-term vitality of the research community.
 
This 13th workshop continues to place SNRs at its core, while also highlighting other astrophysical sources that are expected to host similar high-energy processes, such as microquasars and gamma-ray binaries, which are promising PeVatron candidates. Building on the methodologies and insights developed through SNR studies, the workshop will explore a broad range of open questions in high-energy astrophysics, including the origin of cosmic rays.
 
We hope that this workshop will serve as a fruitful forum for meaningful exchange among researchers and contribute to deeper insight into the fundamental physics of SNRs and related high-energy phenomena.

SNR Workshop 2026 SOC Chair
Hidetoshi Sano (Gifu University)

Venue

JUROKU PLAZA

 
JUROKU PLAZA adjacent to JR Gifu Station North Exit

Access

  • Website: http://plaza-gifu.jp/index.php
  • Address: 1-10-11 Hashimoto-cho, Gifu City, Gifu 500-8856, Japan
  • Access: A 2-minute walk from JR Gifu Station North Exit.
  • The rapid train from JR Nagoya Station takes approximately 18 minutes to JR Gifu Station. For more details, please refer to the following URL.

Venue

  • Small Conference Room 1 (5th floor, Juroku Plaza)
  • Food and drinks are allowed inside the confarence room.

Lunch

  • You can enjoy meals at the commercial facilities connected to JR Gifu Station (Active G), nearby restaurants, and convenience stores.
  • The restaurant on the 1st floor of JUROKU PLASA is also available.

Accommodation

 

©️ JUROKU PLAZA

 

Small Conference Room 1 (JUROKU PLAZA 5F)

Program

Day 1 [2026 March 23 (Mon.)]

09:30-10:00 Registration
10:00-10:10 Opening Remarks (10 min)
Day 1 AM session
10:10-10:50 Kai Matsunaga (Kyoto University)
「Chlorine and Potassium Enrichment in Cassiopeia A: Probing Stellar Interiors and Supernova Nucleosynthesis」
10:50-11:30 Makoto Sawada (Rikkyo University)
「XRISM observations of W49B: constraining the 3D structure and progenitor of the Galactic "oddball"」
11:30-11:50 Iroha Ichiseki (The University of Tokyo)
「Asymmetric Fe-K Kinematics in Kepler's SNR with XRISM/Resolve」
11:50-14:00 Lunch (130 min) + Conference Photo
Day 1 PM session 1
14:00-14:20 Aya Bamba (The University of Tokyo)
「Three-Dimensional Expansion of Iron Ejecta in Cassiopeia A with Chandra and XRISM」
14:20-14:40 Atsuya Uchida (Kyoto University)
「XRISMを用いた超新星残骸G349.7+0.2の精密X線分光観測」
14:40-15:00 Yesol Kim (KASI)
「A New SNR Candidate G25.8+0.2 Revealed in the Near-Infrared and Its High-Energy Counterparts」
15:00-15:20 Coffee Break (20 min)
Day 1 PM session 2
15:20-15:40 Ellis Owen (RIKEN)
「Multiwavelength Probes of Cosmic Ray Transport in Molecular Clouds in the ISM and near SNRs」
15:40-16:00 Rin Yamada (NAOJ/Gifu University)
「An ALMA [CI] observations of the N49 SNR in the Large Magellanic Cloud」
16:00-16:20 Yuto Akiyama (Gifu University)
「Observational Study of Cosmic-Ray Proton Acceleration and Diffusion in the Gamma-ray Supernova Remnant IC 443」
16:20-16:40 Coffee Break (20 min)
Day 1 PM session 3
16:40-17:20 Susumu Inoue (Chiba University)
「TBD」
17:20-17:50 Discussion (30 min)
18:00-20:00 Banquet (120 min)
 

Day 2 [2026 March 24 (Tue.)]

09:30-10:00 Registration
Day 2 AM session
10:00-10:40 Takaaki Tanaka (Konan University)
「Gamma-Ray Binaries as Galactic Cosmic-Ray Accelerators」
10:40-11:20 Haruka Sakemi (Yamaguchi University)
「Jet-ISM Interaction Driven by a Microquasar」
11:20-11:40 Bhuvana G. R.（Gifu University）
「ALMA CO Observation of Supernova Remnant DEM L241: Discovery of Microquasar jet driven molecular clouds」
11:40-14:00 Lunch (140 min) + Conference Photo
Day 2 PM session 1
14:00-14:20 Kisetsu Tsuge (Gifu University)
「Filamentary Structures and Kinematics of Molecular Clouds Associated with HESS J1023−575」
14:20-14:40 Yasuo Fukui (Nagoya University/Gifu University)
「How SNRs are linked with young clusters/OB associations」
14:40-15:00 Hidetoshi Sano (Gifu University)
「Interstellar Clouds associated with PeVatron & PeVatron Candidates」
15:00-15:20 Coffee break (20 min)
Day 2 PM session 2
15:20-16:20 Felix Aharonian (Yerevan State University)
「SNRs in the context of the origin of Galactic Cosmic Rays」
16:20-16:30 Coffee break (10 min)
16:30-16:55 Discussion (25 min)
16:55-17:00 Closing Remarks (5 min)

Confirmed Invited Speakers

  • Felix Aharonian (DIAS/MPIK | PeV gamma-ray astronomy [online review])

  • Susumu Inoue (Chiba Univ. | Particle acceleration theory in high-energy astrophysical phenomena)

  • Makoto Sawada (Rikkyo Univ. | XRISM elemental abundance & bulk motion)

  • Haruka Sakemi (Yamaguchi Univ. | Microquasar jet)

  • Takaaki Tanaka (Konan Univ. | Gamma-ray binary)

  • Kai Matsunaga (Kyoto Univ.| XRISM odd-Z elements)

Information for Participants

Call for Presentations

  • The deadline for abstract submissions is March 13, 2026.
  • Please submit your title/abstract from this form.
  • (2026 March 13) The submission for presentations has now closed. Thank you for your numerous submissions. Registration for remote participation is still open (Zoom only).
  • (2026 March 18) A confirmation email will be sent after your registration. If you do not receive it, your registration may not have been completed. In that case, please contact us at snrworkshop2026@gmail.com as soon as possible.
 

General Information

  • As there will be international participants, please prepare your slides in English.
  • For on-site participants, presentations will be broadcast via Zoom using a MacBook Air at the venue.
  • The presentation language can be either Japanese or English.
  • Your talk slides will be collected before your session. Please check your slides beforehand.
 

Presentation Time※

  • keynote speakers: 60 minutes (45-minute presentation + 15-minute Q&A)
  • Invited speakers: 40 minutes (30-minute presentation + 10-minute Q&A)
  • Contributed talk: 20 minutes (15-minute presentation + 5-minute Q&A)

※ The presentation time may change depending on the number of participants.

 

Other Information

  • The venue’s network bandwidth is limited, so we kindly ask on-site participants to avoid connecting to Zoom during the sessions.
  • A reception is planned for the evening of the workshop's first day. On-site participants will receive a separate email about this event, so please register early.

Participants

  • 佐野栄俊（岐阜大学）

  • 馬場彩（東京大学）

  • 田中孝明（甲南大学）

  • 井上剛志（甲南大学）

  • 信川久実子（近畿大学）

  • 内田裕之（京都大学）

  • 福井康雄（名古屋大学/岐阜大学)

  • 柘植紀節（岐阜大学)

  • Bhuvana G. R.（Gifu Univ.)

  • F. Aharonian (Yerevan State Univ.)

  • 井上進（千葉大学）

  • 酒見はる香（山口大学）

  • 澤田真理（立教大学）

  • 松永海（京都大学）

  • 成田拓仁（京都大学）

  • 荒木田英禎（日本大学)

  • 市橋正裕（東京大学)

  • Ellis Owen（理研)

  • 佐藤大仁（東京大学)

  • 市堰いろは（東京大学)

  • Yesol Kim（KASI)

  • 大曽根聡子

  • 吉田龍生（茨城大学）

  • 内田敦也（京都大学)

  • 山田麟（国立天文台/岐阜大学)

  • 奥山弥（岐阜大学)

  • 豊田悠（岐阜大学)

  • 淺井大夢（岐阜大学)

  • 鷲見怜音（岐阜大学)

  • 永井誠（関西学院大学)

  • 大城勇憲（理化学研究所)

  • 國定知明（岐阜大学)

  • 渡邊紗蘭（岐阜大学)

  • 加藤結菜（岐阜大学)

  • 犬塚修一郎（名古屋大学)

  • 秋山勇斗（岐阜大学)

  • 瀬田益道（関西学院大学)

  • 諸隈佳菜（東京大学）

  • 祖父江義明（東京大学）

  • 上村悠介（京都大学)

  • 小林将人（核融合科学研究所)

  • 粕谷伸太（神奈川大学)

  • Suinan Zhang（東京科学大学)

  • 長崎宏祐（岐阜大学）

  • ほか３名

Organizing Committee

Scientific Organizing Committee (SOC)

 

  • Hidetoshi Sano（Gifu Univ., SOC chair）

  • Aya Bamba（The Univ. of Tokyo）

  • Takaaki Tanaka（Konan Univ.）

  • Tsuyoshi Inoue（Konan Univ.）

  • Kumiko Nobukawa（Kindai Univ.）

  • Hiroyuki Uchida (Kyoto University)

  • Yasuo Fukui（Nagoya Univ. / Gifu Univ.）

 

Local Organizing Committee (LOC)

 

  • Hidetoshi Sano（Gifu Univ., LOC chair）

  • Takeru Murase（Gifu Univ.）

  • Kisestu Tsuge（Gifu Univ.）

  • Bhuvana G. Rajendra（Gifu Univ.）

  •  
    • E-mail: snrworkshop2026 [at] gmail.com ( [at] --> @)

Acknowledgement

This workshop is supported by the JSPS Grant-in-Aid for Scientific Research (A), "Exploring cosmic-ray diffusion processes through a detailed analysis of the ISM [24H00246]" (PI: Hidetoshi Sano).

Last Updated 2026-03-19 / Copyright SNR Workshop 2026. All Rights Reserved.