June 25 Tue 10:30-12:00
Solar and Space Plasma Seminar
hybrid; Seminar Room 310 in Main building (North) and Zoom
June 26 Wed 10:00-12:00
SOKENDAI Colloquium
hybrid; Large Seminar Room in Subaru Building and Zoom
June 26 Wed 14:30-15:30
ALMA-J seminar
hybrid; Room 102 in ALMA building and Zoom
June 26 Wed 15:30-16:30
NAOJ Science Colloquium
hybrid; Rinkoh Seminar Room and Zoom
June 28 Fri 15:30-16:30
NAOJ Seminar
hybrid; Large Seminar Room in Subaru Building and Zoom
詳細は下記からご覧ください。
=============== June 25 Tue===============
Campus： Mitaka
Seminar： Solar and Space Plasma Seminar
Regularly Scheduled/Sporadic： Sporadic
Date and time：25 June (Tue), 10:30-12:00
Place： Seminar Room 310 in Main building (North) and Zoom
Speaker：Dr. Gabrial Giono
Affiliation：Space Research Institute, Austrian Academy of Sciences, Austria
Title： Plasma and planetary science instrumentation at the IWF: SMILE, Comet Interceptor, JUICE and BepiColombo
Abstract：
The Institut für Weltraumforschung (IWF) in Graz, Austria, has been developing space instruments for more than 50 years. In recent years, the institute has been contributing to a number of plasma and planetary missions. This talk will focus on four missions: (1) the ESA/CAS Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission, (2) the ESA Comet Interceptor mission, (3) the ESA JUICE mission, and (4) the ESA/JAXA BepiColombo mission.
An overview of the IWF instrumental contribution for each these four missions will be presented, respectively (1) the EBOX for the Soft X-ray imager, (2) the MANiaC mass spectrometer and DFP flux-gate magnetometers, (3) the MAGSCA scalar optical magnetometer and (4) the PICAM ion mass spectrometer. For each instrument, an in-depth explanation of their working principle will be provided.
Facilitator
-Name：Akiko Tei
Comment：Japanese (Slides will be in English)
=============== June 26 Wed===============
Campus：Mitaka
Seminar：SOKENDAI Colloquium
Regularly Scheduled/Sporadic：Scheduled
Date and time：Jun 26 10:00-12:00
Place：Large Seminar Room in Subaru Building and Zoom
Speaker：Naoya Kitade
Affiliation：SOKENDAI 1st year (M1) (Supervisor:Akimasa Kataoka, Hideko Nomura, Yuka Fujii)
Title：Support for fragile porous dust in a gravitationally self-regulated disk around IM Lup (review of a paper by Ueda et al, 2024 2406.07427)
Speaker：Chiba Rhotaro
Affiliation：Not entered
Title：Not entered
Speaker：Shotaro Tada
Affiliation：SOKENDAI 5th year (D3) (Supervisor:Takayuki Kotani, Yutaka Hayano, Yosuke Minowa)
Title：Exploring Exoplanetary Atmosphere Asymmetries Through Transmission Spectroscopy: Application to JWST NIRSpec/G395H Data of WASP-39 b’s Transit
Facilitator
-Name：Yoshiaki Sato
Comment：Language: English
===============June 26 Wed==============
Campus: Mitaka
Seminar: ALMA-J seminar
Date and time: 2024 June 26 (Wednesday), 14:30-15:30 JST
Place: Room 102 in ALMA building / Zoom (hybrid)
Speaker: Dirk. Petry (European Southern Observatory)
Title: Results from the ALMA internal development study on uv coverage assessment and scheduling
Abstract: This development study started in 2020 and has now submitted its final report to the review panel. In this talk I will present a “sneak preview” of the results which consist mostly of suggestions for adjustments to ALMA scheduling, QA0, and QA2 to achieve better uv coverage and image quality. I will also introduce our new uv coverage QA tool “assess_ms”.
Facilitator
-Name: Pei-Ying Hsieh
===============June 26 Wed==============
Campus: Mitaka
Seminar: NAOJ Science Colloquium
Date and time: 2024 June 26 (Wed.), 15:30-16:30 JST
Place: the rinkoh seminar room / Zoom (hybrid)
Speaker: Shigeo Kimura
Affiliation: Tohoku University
Title: Pursuing Sources of Cosmic High-energy Neutrinos
Abstract:
Cosmic high-energy neutrinos are expected to be a smoking-gun signature to identify the origin of high-energy cosmic rays. IceCube experiment reported detection of cosmic high-energy neutrinos in 2013, the origin of which became a new mystery in astrophysics. In order to identify the cosmic neutrino sources, multi-messenger observational and analysis technics are now rapidly developing. In this talk, I will review the progress of high-energy neutrino astrophysics, discuss high-energy neutrino emission model in radio-quiet active galactic nuclei, and introduce our effort to identify neutrino sources using optical observational data.
Facilitator
-Name: Ryotaro Chiba
Comment: English
===============June 28 Fri==============
Campus：Mitaka
Seminar：NAOJ Seminar
Regularly Scheduled/Sporadic：Regular
Date and time：June 28, 2024 15:30-16:30
Place：Zoom/Large Seminar Room (hybrid)
Speaker：Dr. Jose Luis Gómez
Affiliation：Instituto de Astrofísica de Andalucía
Title：Eyes on the Invisible: Charting New Horizons with the Event Horizon Telescope
Abstract:The Event Horizon Telescope (EHT) collaboration has captured the first image of a black hole’s event horizon in the galaxy M87, and subsequently, in the supermassive black hole at the center of our Milky Way, SgrA. More recently, the collaboration has released the first follow-up image of M87, utilizing observations from April 2018. The EHT has also revolutionized our understanding of the relativistic jets commonly present in active galactic nuclei, revealing the processes governing the jet formation, collimation and acceleration with an unprecedented angular resolution. The upcoming next-generation Event Horizon Telescope (ngEHT) is poised to significantly upgrade the current system by adding new stations and introducing multi-frequency observational capabilities. These will notably improve the ngEHT’s angular resolution, dynamic range, and overall coverage. This expansion is crucial for enabling the ngEHT to create the first movies of black holes, a leap forward in understanding the processes of black hole accretion and the formation of relativistic jets. In addition, the ngEHT’s advanced features will be instrumental in exploring alternative theories to General Relativity and will expand our observational reach to include potentially a dozen new black holes. By adding an orbiting antenna, the Black Hole Explorer (BHEX), a potential NASA mission, will discover and measure the bright and narrow “photon ring” that is predicted to exist in images of black holes, and fully encodes the space-time metric.
Facilitator
-Name：Takashi Moriya