7th KAGRA International Workshop

from Friday, 18 December 2020 (13:00) to Sunday, 20 December 2020 (20:00)
National Central University (Hybrid style Workshop)

        : Sessions
    /     : Talks
        : Breaks
18 Dec 2020
19 Dec 2020
20 Dec 2020
AM
09:00
No Session (until 10:40) ()
09:00
Status report session(Chair: R.K.Lee) (until 10:40) ()
09:00 Status of KAGRA calibration toward O4 - Dan Chen (NAOJ)   ()
09:30 Status of KAGRA PEM - Takaaki Yokozawa (ICRR)   ()
10:00 Acoustic injection in the KAGRA site - Tatsuki Washimi (NAOJ)   ()
09:00
Student session(Burst, Stochastic, CW. Chair: K.C..Pan) (until 10:40) ()
09:00 (Student) Development of Unsupervised-Learning Based Glitch Classification System - G.Ueshima   ()
09:20 (Student) Modeling and searching for a stochastic gravitational-wave background from ultralight vector bosons - Leo Tsukada (The University of Tokyo, RESCEU)   ()
09:40 (Student) A new way for stochastic gravitational wave background map making using maximum entropy method - Hsiung Chia Hsuan   ()
10:00 (Student) Data analysis of GWs from core-collapse supernova with Hilbert-Huang Transform - Mei Takeda (Osaka City U.)   ()
10:20 (Student) Use of Excess Power Method and Convolutional Neural Network in All-Sky Search for Continuous Gravitational Waves - Takahiro S. Yamamoto (Kyoto University)   ()
10:40 --- Coffee Break ---
10:45
Status report session(Chair: Dan Chen) (until 11:05) ()
10:45 Current status of KAGRA noise budget paper - Kazuhiro Yamamoto (Faculty of Science, University of Toyama) Keiko Kokeyama (ICRR, U-Tokyo)   ()
10:45
Student (CAL,PEM,DET) Session (Chair: T.Washimi) (until 12:25) ()
10:45 (Student) Noise subtraction in offline analysis of KAGRA using independent component analysis - Jun'ya Kume (RESCEU, Univ. of Tokyo)   ()
11:05 (Student) Development of lock-loss classification system in large-scale cryogenic gravitational waves telescope, KAGRA - YUTA FUJIKAWA (Niigata univ.)   ()
11:25 (Student) Study of the frequency domain analysis method to estimate calibration errors - Honglin Lin (NCU)   ()
11:45 (Student) Simulation studies of signal characteristics due to gravity field calibrator in gravitational wave detectors - HsiangChieh Hsu (Department of Physics, National Cheng Kung University) Henry Wong (Academia Sinica)   ()
12:05 (Student) Improvement of calibration error method with higher order harmonics - Hsiang-Yu on behalf of the KAGRA collaboration Huang (NTNU / ASIoP)   ()
10:45
Theory session (Chair: Wolung Lee) (until 12:25) ()
10:45 Stellar Mass Black Hole Formation and Multimessenger Signals from Three Dimensional Rotating Core-Collapse Supernova Simulations - Kuo-Chuan Pan (National Tsing Hua University)   ()
11:35 Gravitational waves from supernova and protoneutron star asteroseismology - Hajime Sotani (RIKEN)   ()
11:05
Student session (Chair: Dan Chen) (until 12:25) ()
11:05 (Student) Parametric Instability in KAGRA large scale cryogenic gravitational wave telescope - Kiichi Kaihotsu (University of Toyama)   ()
11:25 (Student) Optical loss study using a cryogenic folded cavity - Satoshi Tanioka   ()
11:45 (Student) Improvement of the laser intensity stabilization system for O4 in the gravitational wave telescope KAGRA - Yuki Kuromiya   ()
12:05 (Student) Calibration of PCal Laser Power with O3GK - Koki Ito   ()
09:00
Toward O4 session(Chair: F.L.Lin) (until 10:30) ()
09:00 O3a astrophysical distributions - Daniel Wysocki (Rochester Institute of Technology)   ()
09:40 Expected sensitivity of O4 - Yuta Michimura (The University of Tokyo)   ()
10:05 O4 plan and commissioning - masayuki nakano (ICRR)   ()
10:30 --- Coffee Break ---
10:45
Theory and analysis session(Chair: C.H.Wu) (until 12:00) ()
10:45 Status of DAC - H Tagoshi   ()
11:10 Anisotropy and polarization of gravitational wave background - K.W. Ng   ()
11:35 r-process nucleosynthesis in neutron star mergers and kilonovae - Meng-Ru Wu   ()
PM
13:00
Overview session (Chair: Yuki Inoue) (until 14:30) ()
13:00 Opening remark - Takaaki Kajita   ()
13:05 Introduction of KAGRA, Status of KAGRA - Hisaaki Shinkai   ()
13:45 General review on LIGO - Keita Kawabe (LHO)   ()
14:30 --- Coffee Break ---
15:00
O3&O3GK session(Chair: Yuta Machimura) (until 17:00) ()
15:00 General review on Virgo - Ilaria Nardecchia   ()
15:40 O3a catalogue - Stanislav Babak (CNRS)   ()
16:20 Summary review on O3GK observation - Masayuki Nakano   ()
17:00
Announcement of Parallel session and Presentation award (until 17:05) ()
17:30
Dinner (until 19:30) ()
12:25 --- Lunch ---
13:30
Exotic science section (Chair: Yuki Inoue) (until 15:30) ()
13:30 Axion and Vector dark matter search with gravitational wave detectors - Tomohiro Fujita (ICRR, Tokyo University)   ()
14:00 (Student) Dark matter Axion search with riNg Cavity Experiment DANCE: Signal calibration and sensitivity evaluation - Yuka Oshima   ()
14:10 (Student) Dark matter Axion search with riNg Cavity Experiment DANCE: Development of automated cavity locking system - Hiroki Fujimoto   ()
14:20 Cosmic Relic Scattering at Gravitational Wave Detectors - Martin Spinrath (NTHU)   ()
14:40 Directly probing ultra-low-mass scalar-field dark matter with gravitational-wave detectors - Yevgeny Stadnik   ()
15:00 (Student) Possible Violations to Newton's Inverse-Square Law with Gravitational Waves Detector - Miftahul Maarif (Physics Department, National Central University, Taiwan)   ()
15:20 Discussion - Yuta Michimura (The University of Tokyo)   ()
13:30
Student session(Chair: Tzuu-Kang Chyi) (until 15:30) ()
13:30 (Student)Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes - Shuai Liu   ()
13:50 (Student) How does a dark compact object ringdown? - Elisa Maggio (Sapienza University of Rome)   ()
14:10 (Student)Excitation of gravitational wave modes by motion: detecting the peculiar velocity of galaxies using extreme mass ratio inspirals - Alejandro Torres Orjuela (Peking University)   ()
14:30 (Student)Equilibrium sequences of differentially rotating stars with post-merger-like rotational profiles - Panagiotis Iosif (Aristotle University of Thessaloniki)   ()
13:30
Student session(Test of GR, Astronomy. Chair:G.C.Liu) (until 15:30) ()
13:30 (Student) Polarization tests of GW170814 and GW170817 using waveforms consistent with alternative theories of gravity - Hiroki Takeda   ()
13:50 (Student) On the jet structure of short Gamma-ray Bursts through X-ray light curve modeling - En-Tzu Lin   ()
14:10 (Student) Generating Kilonova Light Curves Using Autoencoder to Investigate the Properties of a Compact Binary Merging System - Surojit Saha (Institute of Astronomy, National Tsing Hua University)   ()
14:30 Testing the Propagation of GWs with CPT violation - Lijing Shao (Peking University)   ()
15:00 OBSERVATIONAL EVIDENCE OF BLACK HOLE FORMATION BY GW-CALORIMETRY IN GW170817 - Maurice van putten (Sejong University)   ()
15:30 --- Coffee Break ---
15:50
Multimessenger Astronomy (Chair: A.Kong) (until 17:10) ()
15:50 Gravitational-wave signal recognition of LIGO data by deep learning - He Wang (ITP-CAS)   ()
16:10 Searching gravitational wave signal with autoregressive approach - David C. Y. Hui (Chungnam National University)   ()
16:30 Probing GW friction with GW170817 and GW190521 - Simone Mastrogiovanni (Astroparticule et Cosmologie Laboratoire, Universite de paris)   ()
15:50
Student session(Chair: Takaaki Yokozawa) (until 17:10) ()
15:50 (Student) Measurement of the mechanical loss of reflective coatings for Cryogenic Gravitational wave telescope - Yukino Mori (Univ.Toyama)   ()
16:10 (Student) Development of tilt adjustment mechanism for KAGRA cryogenic mirror suspension - Takumi Nishimoto (ICRR, U-Tokyo)   ()
16:30 (Student) Low-Vibration Conductive Cooling of KAGRA Cryogenic Mirror Suspension - Tomohiro Yamada   ()
16:50 (Student) Graphical user interface for Finesse simulation tool - Naoki Koyama (Niigata university)   ()
15:50
Theory session(Chair: C.H.Wu) (until 17:10) ()
15:50 Black Holes Lessons from Multipole Ratios: A New Window into Black Holes - Daniel Mayerson (IPhT, CEA Saclay)   ()
16:30 The problem on stationary states in self gravitational field - Stanislav Fisenko   ()
17:10
TBD (until 17:15) ()
17:10
TBD (until 17:15) ()
17:10
TBD (until 17:15) ()
17:30
Dinner (until 19:30) ()
12:00 --- Lunch ---
13:00
Squeezing session (Chair: R.K.Lee) (until 15:00) ()
13:00 Toward real-time quantum state tomography for the squeezed state with machine learning - Chien-Ming Wu (National Tsing Hua University)   ()
13:20 Frequency dependent squeezing experiment at NAOJ: status and future - M. Leonardi   ()
13:40 Frequency-Dependent Squeezing for Gravitational-Wave Detectors - Naoki Aritomi   ()
14:00 Implementing the quantum parametric amplifiers in Advanced gravitational wave detectors - Y Ma   ()
14:20 Broadband gravitational wave detectors using white light signal recycling - Michael Page   ()
15:00 --- Coffee Break ---
15:15
KAGRA + session (Chair:S.Haino) (until 17:10) ()
15:15 KAGRA-OzGrav - Collaboration Opportunities for a kHz-Band Gravitational-Wave Detector - Johannes Eichholz   ()
15:35 KAGRA sapphire mirror issues and current status - M. Leonardi   ()
15:55 Gravitational Astronomy Sapphire Optics (OSAG) project - G. Cagnoli   ()
16:10 Sapphire crystal growth at iLM - K. Lebbou   ()
16:25 Coating R&D and sapphire developments at LMA - J. Degallaix   ()
17:10
Multi Messenger Astronomy(Chair:A.Kong) (until 18:00) ()
17:10 Gravitational-wave standard siren cosmology - Hsin-Yu Chen   ()
17:35 Astrophysics with joint analysis of multi-messenger observations - Ik Siong Heng   ()
18:00
Summary session (until 18:15) ()
18:00 Summary of KIW7 - Hisaaki Shinkai   ()
18:10 Announcement of KIW8 in Korea - S. Lee   ()
18:30
Dinner (until 20:00) ()