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LV-EM Open Forum Telecon "B"- Thursday, February 15, 2018 @15:00 UTC

The call will be one hour long.

You can connect to this telecon with either of two methods (the audio will be bridged):
  • Using the free TeamSpeak software: Download from here and install the software, preferably in advance. Please use either an anti-echo USB speakerphone (e.g. a "Phoenix box") or headphones to prevent echoes. At the beginning of the telecon, connect to the server at and use the password la$er. (Note to LVC members: this is not the usual LVC telecon server.) Once you are connected to the server, drag your name down to the "LV-EM Forum" channel. For more details and usage advice, see TeamSpeakInfo.
  • Telephone: Dial the access numbers 1-800-704-9804 (toll free in the US; possibly accessible toll-free via skype from outside the US too) and internationally 1-404-920-6604 with participant code 8295093# . To mute/unmute your line, press *6 .Please note this telecon, agenda, and minutes are not password-protected.


  • Announcements (5')
  • Planning GW multi-messenger town hall meeting(s) (15') wiki slides
  • Sample GW event from O2 (20') slides slides
  • Updates and feedback from astronomer partners (20')
  • AOB


==> Participants:
Phil Cowperthwaite
Alexei Pozanenko
Tristan Olive
Wen-fai Fong
Jonatan Selsing
Jaime Alvarez-Muniz
Daniele Malesani
Nobu Kawai
Marcos Santander (VERITAS)
Enrique Zas
KH Kampert
Brad Cenko
Erik Blaufuss- IceCube
Hsin-Yu Chen
Leo Singer
Andy Smith
Dornic Damien
Alexis Coleiro
Colleen Wilson-Hodge
giulia stratta
stefano valenti
Jasmine Gill
Iair Arcavi
Leo Singer (iPhone)
Leo Singer
Juan Garcia
Daniel Kocevski
Martin Hendry
Peter Junker
Stephen Smartt
Norbert Schartel

==> Announcements: Earlier LVEM call @08:00 UTC -- look out for minutes Monthly OpenLVEM telecon on 3rd Thu of each month;
no meeting in March because of the Town Hall meeting @MIT ==> Town Hall meetings Walked over wiki @ OpenLVEM is in effect as of January 2018; Formal announcement by LIGO-Virgo spokespersons imminent Survey reponses ~80; Boston, MA March 16/17 and Amsterdam, Netherlands April 12/13.
Please note change of venue in Europe from Italy to Netherlands. Town Hall registrations @ . Please indicate your attendance ASAP. Structure of meetings:
(1) LIGO-Virgo status
(2) short presentations from participants
(3) policy on OPA: rate of events, latency, event profile
(4) astronomer preparations
(5) science driven MOUs and collaborations
(6) standardizing records from astrnomical observations Stefano V: will there be remote participation to the meeting? Erik K: will do our best but can't guarantee at this point Steven S: agenda is good; most important is #3.
Need to understand what can be provided and what is wished to be provided. Steven S: #5 is also valuable. Avoid short presentations on what participants are doing.
Suggest short pre-meetings/parallel meeting to think and discuss on #5. Erik K: break-out idea for discussing science-based MOUs/collaborations is a good one Marcos S: will be good to organize science groups under the LVEM umbrella.
These should be separate for the main EM followup of OPAs Enzo B: #3 and #5 items will need a lot of time Brad C: echo Steven's comments Erik K: shall we press ahead with these science groups now or wait Steven S: it can wait for formal structure but good to get the discussion going Erik K: any presentation from the astronomy side in the way of Colleen: need status/update on the instruments and rates of events ==> O1/O2 event profile discussion:
Added information in O2: Distance information, EM bright classification Steven S: p_astro is a very useful thing-- will you provide that? Erik : most likely Steven S: OPAs will be at FAR < 1/100 years. What is the rationale for that? Erik K: slides shown are from previous meetings/statement is a boiler plate one
Erik K: item is in discussion within the collaboration Erik K: a question for the astronomer colleagues:
what is your preferred FAR for a system that is NOT classified as binary? Steven : 1/month -1/2mon ; it will depend on the facility Peter J: second Steven's argument; overall hard question to answer Enzo B: what was the rate of O2 Erik K: 1/2mon
Steven S: will there be new pipelines producing alerts?
Erik K: to zeroth-order, no. The same 3 CBC and 2 Burst searches that reported
alerts over O2 will continue over O3 too. Please note Bayestar and LALinference
are follow-up pipelines that measure from the data extrinsic and intrinsic source
parameters, most notably the 3D skymap.

-- ErikKatsavounidis - 09 Feb 2018
Topic revision: r7 - 2018-02-20,
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