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= GW research exchange meeting =
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== 重力波研究交流会とは? ==
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 * [[重力波研究交流会/重力波研究交流会とは|重力波研究交流会とは?]]

 * [[JGWDoc/HowTo/UpLoad | 資料の upload の仕方]]		  * [[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 ]]
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== 次回の重力波研究交流会 ==
== Upcoming GW-REMs ==
----
=== The 103rd REM: December ===
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=== 第70回 2014年10月10日（金） ===  * Time: 13:00-14:00

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

<<BR>>



=== The 102nd REM: November 15th, 2019, Friday ===
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 * 場所　seevogh上  * Time: 13:00-14:00
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 * 時間　13:00-15:00  * Location: ICRR, the Kashiwanoha campus (tentative)
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 * Talk1：塚田怜央（東大）
  * 「Loss Dependence on Beam Position in the arm cavities of aLIGO」		  * Speaker: Kyohei Kawaguchi (ICRR, University of Tokyo)
   * Title: TBA
   * [[Link to the material will be here]]
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 * Seevogh (evo) 接続情報 <<BR>>
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   追って連絡します
<<BR>>
== 過去の重力波研究交流会 ==
----
=== 第69回 2014年8月29日（金） ===
----
 * 場所：東大三尾研/東大宇宙線研

 * 日時：8月29日（金）　13:00-15:00

 * Talk1：鈴木健一郎(東大三尾研)　
  * 「KAGRA用レーザー光源開発の現状」

 * Talk2：中野雅之（東大宇宙線研）　
  * 「LIGOハンフォード観測所帰朝報告（仮）」

=== 第68回 2014年7月25日（金） ===		 == The past GW REM talks ==
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 * 場所　seevogh上
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 * 時間　13:00-15:00

 * Talk1：八木絢外（Montana State Univ.）
  * 「Applications of Neutron-Star Universal Relations to Gravitational Wave Observations」[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2543| 資料]]

 * Talk2：青山尚平（名大C研）
  * 「全地球測位システム(GPS)の重力波観測への応用とその先の展望」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2548|資料]]

 
=== 第67回 2014年6月13日（金） ===		 === The 101st REM / ISAS Astrophysics Colloquium : August 9th, 2019, Friday ===
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 * 場所　東京工業大学本館H177  * Time: 13:00-14:00
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 * 時間　13:00-15:00  * Location: Room 1537, Bild.A, 5F in JAXA Sagamihara campus
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 * Talk　Sina Koehlenbeck （AEI）
  * 「The 10m Prototype at the AEI Hannover: Current Status and upcoming experiments」 [[http://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0024/G1402468/001/2014-02-13_10m.pdf|here]]		  * 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]]
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 * Seevogh (evo) 接続
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    * Title: JGW monthly seminar
    * Community: Virgo - LSC
    * Webstart (Java) ： http://research.seevogh.com/join?meeting=MaMDMt2v2MD9Dv9M9nDI9a		 <<BR>>
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=== 第66回 2014年5月16日（金） === === The 100th REM: July 12th, 2019, Friday ===
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 * 場所　東大宇宙線研究所６階大セミナー室  * Time: 13:00-14:00
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 * 時間　13:00-15:00  * 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.
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 * Talk2　我妻一博（Nikhef）
  * 「Optical lever for KAGRA」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2396|資料]]		 }}}
 * Zoom connection information
  * Meeting URL: https://zoom.us/j/5045179604
  * password: ask the organizers
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 * Seevogh (evo) 接続 <<BR>>
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    * Title: JGW monthly seminar
    * Community: Virgo - LSC
    * Webstart (Java) ： http://research.seevogh.com/join?meeting=MIM9Ms2e22DIDs9a98Da9I　

=== 第65回 2014年4月11日（金） ===		 === The 99th REM: June 14th, 2019, Friday ===
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 * 場所　東京大学安東研  * Time: 13:00-14:00
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 * 時間　13:00-15:00  * 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.
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 * Talk1　道村唯太（安東研）
  * 「Hanfordに行ってきました～2014冬～」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2327|資料]]		 }}}
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 * Seevogh (evo) 接続
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    * Title:JGW seminar
    * Community:Virgo - LSC
    * Meeting URL : http://research.seevogh.com/joinSRN?meeting=MvM2Ml2a2DD8Du999BDe9v
    * Webstart (Java) ：http://research.seevogh.com/join?meeting=MvM2Ml2a2DD8Du999BDe9v		  * Zoom connection information
  * Meeting URL: https://zoom.us/j/5045179604
  * password: ask the organizers
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=== 第64回 2014年3月7日（金） === <<BR>>



=== The 98th REM: May 17th, 2019, Friday ===
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 * 場所　東大宇宙線研究所6F TV会議室  * Time: 13:00-14:00
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 * 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
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 * Talk1　都丸　隆行　（高エネルギー加速器研究機構）
  * 「宇宙マイクロ波背景放射による原始重力波探査」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2249|資料]]		 <<BR>>
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 * Talk2　 Rahul Kumar (グ ラスゴー大学)
  * 「Development of ground based laser interferometers for the detection of gravitational waves」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2248|資料]]
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 * Seevogh (evo) 接続 == Archives for the past talks ==
----
 * 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) ]]
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    * Title: JGW monthly seminar
    * Community: Virgo - LSC
    * Meeting URL
        * Seevogh R.N. http://research.seevogh.com/join?meeting=M9MIMi2M2eDIDs9v9uDD99
        * EVO International http://evo.caltech.edu/evoNext/koala.jnlp?meeting=M9MIMi2M2eDIDs9v9uDD99		 <<BR>>
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=== 第63回 2014年1月24日(金) === <<Anchor(UsefulLinks)>>
== Useful links ==
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 * [[JGWDoc/HowTo/UpLoadE| How to upload presentation materials to JGW doc database]]
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 * 場所　東大三尾研  * [[ZoomHowTo | How to use Zoom]]
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 * 時間　13:00-15:00  * [[LCGT/Meeting/EVOJ| Use of EVO remote connection system (written in Japanese) ]]
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 * Talk1 市田 昌己(東大小芦研究室)
  * 「Finesse measurement of an optical cavity for vacuum induced transparency」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2152|資料]]		  * [[howtouseezuce| How to join KEK community in eZuce]]
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 * Talk2 古谷 寛之(東大三尾研究室)
  * 「Measurement of Small Optical Absorption in Transparent Materials by Photo-Thermal Common-Path Interferometry」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2151|資料]]

 * Seevogh (evo) 接続

    * Title: JGW monthly seminar
    * Community: Virgo - LSC
    * Meeting URL
       * Seevogh R.N. http://research.seevogh.com/join?meeting=vsvivIeue2I8Ila8aMItas
       * EVO International http://evo.caltech.edu/evoNext/koala.jnlp?meeting=vsvivIeue2I8Ila8aMItas

=== 第62回 2013年12月6日(金) ===		 <<BR>>
<<Anchor(HowToAnnouncements)>>
== How to receive the announcements ==
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 * 場所　東工大 本館 1F H176

 * 時間　13:00-15:00

 * Talk1 黒柳 幸子 (東京理科大学)
  * ｢宇宙ひも起源の重力波｣ [[http://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0020/G1302039/001/GW_Kuroyanagi.pdf|資料]]

 * Talk2 Ronny Nawrodt (Friedrich-Schiller-Universität Jena)
  * ｢Material issues for cryogenic interferometric detectors｣ [[http://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0020/G1302038/001/Nawrodt%20-%20TokyoTech%20122013-1.pdf|資料]]

 * Seevogh (evo) 接続

   * Title: JGW monthly seminar
   * Community: Virgo - LSC
   * Meeting URL
       * Seevogh R.N. http://research.seevogh.com/join?meeting=MsMiMI2u22DlD99D9eDt9s
       * EVO International http://evo.caltech.edu/evoNext/koala.jnlp?meeting=MsMiMI2u22DlD99D9eDt9s

=== 第61回 2013年11月8日（金） ===
----

 * 場所　国立天文台

 * 時間　13:00-15:00

 * Talk1 苔山圭以子 (Luisiana State University)
  * 「リビングストン観測所近況報告」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1975|資料]]

 * Talk2 中野雅之（東大宇宙線研）
  * 「Auxiliary lock system in LIGO 40m – LIGO 40m 帰朝報告」 [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1973|資料]]

 * Seevogh (evo) 接続

    * Title: JGW Monthly Seminar
    * Community: Virgo - LSC
    * Meeting URL
       * Seevogh R.N. http://research.seevogh.com/join?meeting=MsMiMI2u2MDMDa9i9DDt9s
       * EVO International http://evo.caltech.edu/evoNext/koala.jnlp?meeting=MsMiMI2u2MDMDa9i9DDt9s

== これ以前の重力波研究交流会（整備中） ==
----

   * 第51回～第60回重力波研究交流会

   * 第41回～第50回重力波研究交流会

   * 第31回～第40回重力波研究交流会

   * 第21回～第30回重力波研究交流会

   * 第11回～第20回重力波研究交流会

   * 第1回～第10回重力波研究交流会		  . /!\ 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]].

SRMface_small.jpg

重力波研究交流会

GW research exchange meeting


Upcoming GW-REMs

The 103rd REM: December


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)


The past GW REM talks

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


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


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


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


Archives for the past talks



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.

gw_talks (last edited 2023-01-27 10:25:41 by shoichi.oshino)