Differences between revisions 68 and 317 (spanning 249 versions)

重力波研究交流会

GW research exchange meeting

Upcoming GW-REMs

The 103rd REM: December

Time: 13:00-14:00
Speaker: TBA
- Title: TBA
- Link to the material will be here

The 102nd REM: November 15th, 2019, Friday

Time: 13:00-14:00
Location: ICRR, the Kashiwanoha campus (tentative)
Speaker: Kyohei Kawaguchi (ICRR, University of Tokyo)
- Title: "Modeling gravitational waveforms and electromagnetic signals from neutron star binary mergers"
- Link to the material will be here
Zoom connection information
- Meeting URL: https://zoom.us/j/5045179604
- password: ask the organizers

The past GW REM talks

The 101st REM / ISAS Astrophysics Colloquium : August 9th, 2019, Friday

Time: 13:00-14:00
Location: Room 1537, Bild.A, 5F in JAXA Sagamihara campus
Speaker: Morio Toyoshima (NICT)
- Title: "Recent Trends of Space Laser Communications"
- a link to the material (password protected)
Information for Zoom remote connection
- Meeting URL: https://zoom.us/j/5045179604
- password: ask an organizer
Jointly organized with the ISAS Astrophysics Colloquia

The 100th REM: July 12th, 2019, Friday

Time: 13:00-14:00

Speaker: Shoichi Oshino (ICRR, the University of Tokyo)

Title: "A review on BBH formations in N-body simulations"
pdf

Abstract:

Since the first gravitational wave was detected by LIGO, several BH merging events have already been observed. However, the process of BBH formation is still unclear. Here, I introduce studies that use N-body simulations to investigate BBH formation by gravitational interactions in star clusters.

Zoom connection information
- Meeting URL: https://zoom.us/j/5045179604
- password: ask the organizers

The 99th REM: June 14th, 2019, Friday

Time: 13:00-14:00

Speaker: Hisaaki Shinkai (Osaka Inst. Tech.)

Title: "INO: Interplanetary Network of Optical Lattice Clocks"
ref: Int. J. Mod. Phys. D. (2019) https://doi.org/10.1142/S0218271819400029 or arXiv:1809.10317
slide pdf

Abstract

The new technique of measuring frequency by optical lattice clocks now approaches to the relative precision of (\Delta f/f)=O(10^{-18}). We propose to place such precise clocks in space and to use Doppler tracking method for detecting low-frequency gravitational wave below 1 Hz. Our idea is to locate three satellites at one A.U. distance (say at L1, L4 & L5 of the Sun-Earth orbit), and apply the Doppler tracking method by communicating ``the time" each other. Applying the current available technologies, we obtain the sensitivity for gravitational wave with three or four-order improvement (h_{n}\sim 10^{-17} or 10^{-18} level in 10^{-5} Hz -- 1 Hz) than that of Cassini satellite in 2001. This sensitivity enables us to observe black-hole mergers of their mass greater than 10^5 M_\odot in the cosmological scale. Based on the hierarchical growth model of black-holes in galaxies, we estimate the event rate of detection will be 20-50 a year. We nickname "INO" (Interplanetary Network of Optical Lattice Clocks) for this system, named after Tadataka Ino (1745--1818), a Japanese astronomer, cartographer, and geodesist.

Zoom connection information
- Meeting URL: https://zoom.us/j/5045179604
- password: ask the organizers

The 98th REM: May 17th, 2019, Friday

Time: 13:00-14:00
Speaker: Federico Paoletti and Irene Fiori (European Gravitational Observatory)
- Title: "Virgo environmental status"
- pdf
Zoom connection information
- Meeting URL: https://zoom.us/j/5045179604
- password: ask the organizers

Archives for the past talks

Most of the archives for the earlier years are written in Japanese (it is a history!).

Useful links

How to receive the announcements

$/!\$ One has to subscribe to the mailing list called gw_comm in order to receive our announcement emails. Please ask one of our organizers for subscription.
The organizers can be found in this page.

-  ⇤ ← Revision 68 as of 2015-08-11 06:33:12 → 
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+   ← Revision 317 as of 2019-11-15 10:25:02 → ⇥
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-Deletions are marked like this.
+Additions are marked like this.
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+= GW research exchange meeting =
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+Line 6:
-== 重力波研究交流会とは? ==
-Line 7:
+Line 8:
- * [[gw_talks/what_is|重力波研究交流会とは?]]
+ * [[gw_talks/what_is|What is GW REM? （重力波研究交流会とは?）]]
 * [[#UsefulLinks | Useful Links ]]
 * [[#HowToAnnouncements | How to receive announcements ]]

<<BR>>

== Upcoming GW-REMs ==
----
=== The 103rd REM: December ===
----

 * Time: 13:00-14:00

 * Speaker: TBA
   * Title: TBA
   * [[Link to the material will be here]]

<<BR>>
-Line 11:
+Line 29:
+=== The 102nd REM: November 15th, 2019, Friday ===
----

 * Time: 13:00-14:00

 * Location: ICRR, the Kashiwanoha campus (tentative)

 * Speaker: Kyohei Kawaguchi (ICRR, University of Tokyo)
   * Title: ''"Modeling gravitational waveforms and electromagnetic signals from neutron star binary mergers"''
   * [[Link to the material will be here]]

 * Zoom connection information
   * Meeting URL: https://zoom.us/j/5045179604
   * password: ask the organizers
-Line 14:
+Line 46:
-== 次回の重力波研究交流会 ==
----
-Line 17:
+Line 47:
-=== 第78回 2015年8月21日(金) ===

----

 * 場所　東大安東研

 * 時間　13:00-14:00

 * Talk : 井上優貴 (KEK)
  *「宇宙マイクロ波背景放射偏光観測実験POLARBEAR-2の開発と評価」

 * Seevogh 接続情報
  *Title: JGW monthly seminar
  *Community: Virgo - LSC
  *Password: 案内メールを参照のこと
  *Meeting Access Information:

<<BR>>
== 過去の重力波研究交流会 ==
+== The past GW REM talks ==
-Line 39:
+Line 51:
-=== 第77回 2015年7月24日(金) ===
+=== The 101st REM / ISAS Astrophysics Colloquium : August 9th, 2019, Friday ===
-Line 43:
+Line 54:
- * 場所 国立天文台
+ * Time: 13:00-14:00
-Line 45:
+Line 56:
- * 時間　13:00-15:00
+ * Location: Room 1537, Bild.A, 5F in JAXA Sagamihara campus
-Line 47:
+Line 58:
- * 登壇者1：Mark Barton (国立天文台)
  * タイトル:  "Suspension Dynamics Modeling for LIGO and KAGRA"[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3768|発表ファイル]]
  * 概要: A description of work I did on suspension dynamics modeling at LIGO with particular emphasis on its relation to Sekiguchi-san's adaptation and other things that will be needed for KAGRA.
+ * Speaker: Morio Toyoshima (NICT)
   * Title: ''"Recent Trends of Space Laser Communications"''
   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10526 | a link to the material (password protected)]]
 * Information for Zoom remote connection
  * Meeting URL: https://zoom.us/j/5045179604
  * password: ask an organizer 
 * Jointly organized with [[http://www.isas.jaxa.jp/home/astro_colloq/|the ISAS Astrophysics Colloquia]]
-Line 51:
+Line 66:
- * 登壇者2：Manuel Marchio (東大天文D1)
  * タイトル:  "Bayesian approach to the locking problem for high-finesse optical cavities"[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3863|発表ファイル]]
  * 概要 :  To Be Announced
-Line 55:
+Line 67:
- * Seevogh 接続情報
  *Title:
  *Community: Virgo - LSC
  *Password: 案内メールを参照のこと
  *Meeting Access Information:
+<<BR>>

=== The 100th REM: July 12th, 2019, Friday ===
----

 * Time: 13:00-14:00

 * Speaker: Shoichi Oshino (ICRR, the University of Tokyo)
   * Title: ''"A review on BBH formations in N-body simulations"''
   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10440|pdf]]
   * Abstract:
   {{{
Since the first gravitational wave was detected by LIGO, several BH merging events have already been observed. However, the process of BBH formation is still unclear. Here, I introduce studies that use N-body simulations to investigate BBH formation by gravitational interactions in star clusters.

}}}
 * Zoom connection information
  * Meeting URL: https://zoom.us/j/5045179604
  * password: ask the organizers 

<<BR>>

=== The 99th REM: June 14th, 2019, Friday ===
----

 * Time: 13:00-14:00

 * Speaker: Hisaaki Shinkai (Osaka Inst. Tech.)
   * Title: ''"INO: Interplanetary Network of Optical Lattice Clocks"''
   * ref: Int. J. Mod. Phys. D. (2019) https://doi.org/10.1142/S0218271819400029 or [[https://arxiv.org/abs/1809.10317| arXiv:1809.10317]]
   * [[http://www.oit.ac.jp/is/shinkai/Viewgraphs/201906_GW_INO_shinkai.pdf|slide pdf]]
   * Abstract
   {{{
The new technique of measuring frequency by optical lattice clocks now approaches to the relative precision of (\Delta f/f)=O(10^{-18}). We propose to place such precise clocks in space and to use Doppler tracking method for detecting low-frequency gravitational wave below 1 Hz. Our idea is to locate three satellites at one A.U. distance (say at L1, L4 & L5 of the Sun-Earth orbit), and apply the Doppler tracking method by communicating ``the time" each other. Applying the current available technologies, we obtain the sensitivity for gravitational wave with three or four-order improvement (h_{n}\sim 10^{-17} or 10^{-18} level in 10^{-5} Hz -- 1 Hz) than that of Cassini satellite in 2001. This sensitivity enables us to observe black-hole mergers of their mass greater than 10^5 M_\odot in the cosmological scale. Based on the hierarchical growth model of black-holes in galaxies, we estimate the event rate of detection will be 20-50 a year. We nickname "INO" (Interplanetary Network of Optical Lattice Clocks) for this system, named after Tadataka Ino (1745--1818), a Japanese astronomer, cartographer, and geodesist.

}}}


 * Zoom connection information
  * Meeting URL: https://zoom.us/j/5045179604
  * password: ask the organizers 

<<BR>>
-Line 63:
+Line 112:
-=== 第76回 2015年5月8日（金） ===
+=== The 98th REM: May 17th, 2019, Friday ===
-Line 67:
+Line 115:
- * 場所　東大宇宙線研
+ * Time: 13:00-14:00
-Line 69:
+Line 117:
- * 時間　13:00-15:00
+ * Speaker: Federico Paoletti and Irene Fiori (European Gravitational Observatory)
   * Title: ''"Virgo environmental status"''
   * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10215|pdf]]
 * Zoom connection information
  * Meeting URL: https://zoom.us/j/5045179604
  * password: ask the organizers
-Line 71:
+Line 124:
- * Talk1: James Quach（物性研究所）「Gravitational Casimir Effect」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3531|発表ファイル]]

 * Talk2: 小野謙次（宇宙線研究所）「New estimation method for mass of an isolated neutron star using gravitational waves」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3535|発表ファイル]]
+<<BR>>
-Line 76:
+Line 127:
- * Seevogh 接続情報
  *Title:JGW monthly seminar
  *Community: Virgo - LSC
  *Password: 案内メールを参照のこと
  *Meeting Access Information:


=== 第75回 2015年4月24日（通常より1時間遅いスタートとなります。） ===
+== Archives for the past talks ==
-Line 87:
+Line 129:
- * 場所　東工大宗宮研

 * 時間　14:00-16:00

 * Talk1: 矢野和城 (宗宮研M2)
  *「宗宮研でやっている実験レビュー (信号増幅を中心に)」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3511|発表ファイル]]

 * Talk2: 橘優太朗 (河合研M2)
  *「光子で探る活動銀河核(時系列解析を中心に)」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ProcessDocumentAdd|発表ファイル]]

 * Seevogh 接続情報
  *Title: JGW monthly seminar
  *Community: Virgo - LSC
  *Password: 案内メールを参照のこと
  *Meeting Access Information:
    *SeeVoghRN Application       http://research.seevogh.com/joinSRN?meeting=M9MIMi222iDeDi999iDD99
    *Mobile App :  Meeting ID: 727 4165   or  Link: http://research.seevogh.com/join?meeting=M9MIMi222iDeDi999iDD99



=== 第74回 2015年2月20日（金） ===
----

 * 場所　東大三尾研

 * 時間　13:00-15:00

 * Talk1: 水谷彬（三尾研M1）
  *「フェムト秒レーザーによるCFRPのレーザー加工」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3332|発表ファイル]]
 * Seevogh 接続情報
  *Title: JGW monthly seminar
  *Community: Virgo - LSC
  *Password: 案内メールを参照のこと
  *Meeting Access Information:
    *SeeVoghRN Application       http://research.seevogh.com/joinSRN?meeting=M9MIMi222iD2D29I99DD99
    *WebStart (Java)             http://research.seevogh.com/join?meeting=M9MIMi222iD2D29I99DD99
    *Mobile App :  Meeting ID: 721 8680   or  Link: http://research.seevogh.com/join?meeting=M9MIMi222iD2D29I99DD99




=== 第73回 2015年1月23日（金）〜冬のIMC祭り〜 ===
----

 * 場所　Seevogh上

 * 時間　13:00-15:00

 * Talk1:苔山圭以子(Louisiana State Univ.)
  *「aLIGO (LLO) IMC Overview」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB//ShowDocument?docid=3258|発表ファイル]]

 * Talk2:中野雅之(宇宙線研)
  *「Installation of KAGRA PSL table」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3256|発表ファイル]]

 * Talk3:斉藤高大(新潟大)
  *「KAGRA IMC suspension report」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3257|発表ファイル]]

 * Seevogh 接続情報
  *Title: JGW monthly seminar
  *Community: Virgo - LSC
  *Password: 案内メールを参照のこと
  *Meeting Access Information:
    *SeeVoghRN Application       http://research.seevogh.com/joinSRN?meeting=MsMiMI2l2eDMDv9n9aDt9s
    *WebStart (Java)             http://research.seevogh.com/join?meeting=MsMiMI2l2eDMDv9n9aDt9s
    *Mobile App :  Meeting ID: 719 6573   or  Link: http://research.seevogh.com/join?meeting=MsMiMI2l2eDMDv9n9aDt9s



=== 第72回 2014年12月19日（金） ===
----

 * 場所　東大宇宙線研

 * 時間　13:00-15:00

 * Talk1:土井康平（宇宙線研究所） 発表資料：なし

 * Talk2:和泉究（LIGO ハンフォード）[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3117|発表資料]]

 * Seevogh (evo) 接続情報
  *Title: JGW Monthly Seminar
  *Community: Virgo-LSC
  *Password: アナウンスメールを参照して下さい。
  *Meeting Access Information:



=== 第71回 2014年11月21日 ===
----

 * 場所　東京大学安東研

 * 時間　13:00-15:00

 * Talk1: 宇佐見康二(東大先端研)
  *「光-マグノン-マイクロ波-超伝導量子ビットのリンクあるいは量子ピタゴラスイッチ」 [[http://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0030/G1403012/001/2014_11_21_Hongo_n.pdf| 発表資料]]

 * Talk2: 和泉究(LIGO Hanford)
  *「LIGO Hanford での signal recycling cavity 内 mode hop 問題について（仮）」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2995| 発表資料]]

 * Seevogh (evo) 接続情報
  *Title:          JGW Monthly Seminar(true)
  *Community:      Virgo - LSC
  *Password:       アナウンスメールを参照してください。
  *Meeting Access Information:
   *SeeVoghRN Application       http://research.seevogh.com/joinSRN?meeting=MMMeMn2D2iDMDu929lD29M
   *WebStart (Java)             http://research.seevogh.com/join?meeting=MMMeMn2D2iDMDu929lD29M
   *Mobile App :  Meeting ID: 713 3002   or  Link: http://research.seevogh.com/join?meeting=MMMeMn2D2iDMDu929lD29M
+ * Most of the archives for the earlier years are written in Japanese (it is a history!).
  . {i} [[gw_talks/archive_101_110|101-110th GW-REM talks (2019-)]] 
  . {i} [[gw_talks/archive_91_100|91-100th GW-REM talks (2017-2019)]] 
  . {i} [[gw_talks/archive_81_90|81-90th GW-REM talks (2016-2017) ]] 
  . {i} [[gw_talks/archive_71_80|71-80th GW-REM talks (2014-2015) ]] 
  . {i} [[gw_talks/archive_61_70|61-70th GW-REM talks (2013-2014) ]] 
  . {i} [[gw_talks/archive_51_60|51-60th GW-REM talks (2012-2013) ]] 
  . {i} [[gw_talks/archive_41_50|41-50th GW-REM talks (2011-2012) ]] 
  . {i} [[gw_talks/archive_31_40|31-40th GW-REM talks (2010-2011) ]] 
  . {i} [[gw_talks/archive_21_30|21-30th GW-REM talks (2009-2010) ]] 
  . {i} [[gw_talks/archive_11_20|11-20th GW-REM talks (2008-2009) ]] 
  . {i} [[gw_talks/archive_1_10|1-10th GW-REM talks (2007-2008) ]]
-Line 198:
+Line 143:
-== これ以前の重力波研究交流会 ==
+<<Anchor(UsefulLinks)>>
== Useful links ==
-Line 200:
+Line 147:
+ * [[JGWDoc/HowTo/UpLoadE| How to upload presentation materials to JGW doc database]]
-Line 201:
+Line 149:
-    {i} [[gw_talks/archive_61_70|第61回～第70回重力波研究交流会]]
+ * [[ZoomHowTo | How to use Zoom]]
-Line 203:
+Line 151:
-    {i} [[gw_talks/archive_51_60|第51回～第60回重力波研究交流会]]
+ * [[LCGT/Meeting/EVOJ| Use of EVO remote connection system (written in Japanese) ]]
-Line 205:
+Line 153:
-    {i} [[gw_talks/archive_41_50|第41回～第50回重力波研究交流会]]

    {i} [[gw_talks/archive_31_40|第31回～第40回重力波研究交流会]]

    {i} [[gw_talks/archive_21_30|第21回～第30回重力波研究交流会]]

    {i} [[gw_talks/archive_11_20|第11回～第20回重力波研究交流会]]

    {i} [[gw_talks/archive_1_10|第1回～第10回重力波研究交流会]]
+ * [[howtouseezuce| How to join KEK community in eZuce]]
-Line 216:
+Line 156:
-== 暮らしに役立つリンク ==
+<<Anchor(HowToAnnouncements)>>
== How to receive the announcements ==
-Line 218:
+Line 159:
- * [[JGWDoc/HowTo/UpLoad | 資料の upload の仕方]]

 * [[LCGT/Meeting/EVOJ| EVO遠隔会議システムの使い方あれこれ]]
+ . /!\ One has to subscribe to the mailing list called ''gw_comm'' in order to receive our announcement emails. Please ask one of our organizers for subscription. 
 . The organizers can be found in [[gw_talks/what_is|this page]].