One Day Meeting with Prof. Roger Blandford
Date: 24th July, 2023
Place: RIKEN Wako Campus
https://ithems.riken.jp/en/access/riken-wako-campus
Meeting Room:
Room 359
in the
main research
building https://ithems.riken.jp/en/access/seminar-room-359
Program:
Chair: Akira Mizuta 9:00 ‒ 9:40
Sousuke Noda (Assistant Professor)
Presentation
Title: Superradiance
for Alfvén
wave and
Blandford-Znajek process
30 mins for presentation and 10 mins for Q&A.
9:45 ‒ 10:15
Yuh Tsunetoe (Postdoctoral Researcher)
Presentation Title: Investigation of the Disk-Jet Structure near a Supermassive Black Hole through Polarization Images
20mins for presentation and 10 mins for Q&A.
10:20 ‒ 10:50
Elika Prameswari Fariyanto (Masterʼs Course Student)
Presentation title: Jet Collimation Profile Analysis and Core-shift Measurement of M84
20mins for presentation and 10 mins for Q&A.
Coffee Break 10:50 ‒ 11:20
Chair: Shigehiro Nagataki 11:20 ‒ 11:50
Takatoshi Ko (Doctorʼs Course Student)
Presenttion Title: Introduction of SNR 1181 and a massive white dwarf in its center
20mins for presentation and 10 mins for Q&A.
11:55 ‒ 12:35
Akira Harada (Postdoctoral Researcher)
Presentation Title: Supernova theory and observation
30mins for presentation and 10 mins for Q&A.
Chair: Hirotaka Ito 13:30 ‒ 13:55
Yuri Sato (Doctorʼs Course Student)
Presentation Title: Two-component jet model for multiwavelength afterglow emission of the extremely energetic burst GRB 221009A
15 mins for presentation and 10 mins for Q&A.
14:00 ‒ 14:45
Hirotaka Ito (Postdoctoral Researcher)
Presentation Title: Summary of ABBLʼs Research on GRBs.
35 mins for presentation and 10 mins for Q& A.
Chair: Eiji Kido 14:50 ‒ 15:15
Ryo Higuchi (Postdoctoral Researcher)
Presentation Title: Effects of GMF deflections on UHECR observations
15 mins for presentation and 10 mins for Q & A.
15:20 ‒ 15:45
Eiji Kido (Postdoctoral Researcher)
Presentation Title:
Photo-nuclear reactions in the propagation of ultra-high-energy cosmic rays
15
mins for
presentation and
10 mins
for Q&A. Coffee
Break 15:45
‒ 16:15 16:15
‒ 16:40 Noemie
Globus (Senior
Researcher)
Presentation
Title: Treasure
Maps for
Extreme Energy
Cosmic Rays
15
mins for presentation and 10 mins for Q&A.
Chair:
Shigehiro Nagataki
16:45 ‒ 17:30 Shigehiro
Nagataki (Staff)
Presentation
Title:
Summary of ABBLʼs Research on SNe-SNRs. 35 mins for presentation
35 mins for presentation and 10 mins for Q& A.
17:30
‒ 18:30 Prof.
Roger Blandford
Presentation
Title:
Jets, Disks and Winds from Spinning Black Holes: Nature or Nurture?
50 mins for presentation (maximumly), and 10 mins for Q&A. Abstract:
An alternative interpretation of
discussion of slow accretion onto massive black holes in galactic
nuclei is
discussed. It
is proposed
that the
disk is
primarily powered
by the
black hole
rotation, not the release of gravitational energy from the infalling
gas. Consequently, the observed
millimetre emission
is produced
by an
“ergomagnetosphere”
that connects
the black hole
horizon to an “ejection disk” from which most of the gas supplied
at a remote “magnetopause” is lost through a magnetocentrifugal
wind. It is argued that the boundary conditions at high latitude on
the magnetopause play a crucial role in the collimation of the
relativistic jets. The increasingly important role of stars in
shaping the gas flow around massive black holes will be discussed. 18:30-19:00 Dinner
at the
Cafeteria in
the RIKEN
Wako Campus. Participants
are welcomed
to join
the dinner
(meals are
at your
own expense). 19:10 Roger
leaves RIKEN
by taxi.