BelGrav weekly meeting "Roundtable" format

Europe/Brussels
https://cern.zoom.us/j/8354516554?pwd=N3lSOWdhczdLcnNUSkZLRVNMeDFkQT09 (virtual - zoom)

https://cern.zoom.us/j/8354516554?pwd=N3lSOWdhczdLcnNUSkZLRVNMeDFkQT09

virtual - zoom

News and announcements

NONE.

CW

Magdalena: Paper about GW parallax is almost ready. Found that by using GW parallax can measure distance to sources pretty well. Constrain properties of NS, such as moment of intertia.

Archisman: Fundamental physics? MS: Recent papers.

Andrew: Visiting ESA for a few weeks. Analyzing LISA pf data for dm / dark photon. DAC presentations for O4 PBH paper and O4 DM direct detection paper. GeV excess paper almost finished. Constraints on number of ms pulsars.

Archisman: LISA data? Andrew: LISA pathfinder data public. Giacomo: Will you actually analyze real data? Andrew: yes. Nick: Guillaume has experience with LISA pathfinder data. Can extend this.

SGWB

Antwerp: Kamiel, Kevin, Nick posted review paper (71 pages) on arXiv current status. Kamiel wrapping up a couple on papers: correlated magnetic noise (ET science), formalism of null stream developed for LISA to be extended for ET. Kamiel: stochastic detchar for O4. Get in contact if interested. Kevin TTU Bayesian analysis programme for popcorn. Kevin: Python version of isotropic pipeline. Start review by the end of the year. Simple toy models. MDC 5 year data set with stochastic pipeline.

Federico: Last week met with PhDs and postdocs. Encourage collaborations.

Archisman: Will be good to hear about some of the new work as longer talks.

Mechanics

Written update from Hans: Pengbo, Kumar, and Hans unable to join. Travelling to Maastricht to install the coil winding machine and deliver several other parts/items. Can show some pictures in the future. Apart from this, main focus at the moment is to measure an LVDT+VC coil design to be used in ETpathfinder and to compare it with simulation.

Anoop: RasWatt, Watts link and Rasnik read out. Really crude suspension. Expect better results with well working suspension. Nick: ISB Harald welcomed Anoop to Hannover. Joris: HAM tables. CAD drawings of LIGO tables so that they follow each other. Rasnik could become complementary.

Joris: Test blocks of niobium. If everything goes well, by end of november. Paper on LGWA payload.

Morgane: Work for ETEST. Cryogenic intertial sensors. Optical expt. Quality factor of the mirrors. Exact same readout as cryogenic interial sensor. Measure the modes and their QFs. Bandwidth 15 kHz.

Daniela: Production of suspension parts. Small issue. Nick: Larger pieces can contact Antwerp workshop.

Computing

Andres: Co chair computing divisio for ET. Increases Belgian presence!

Meeting abruptly ended by Archisman.

 

 

There are minutes attached to this event. Show them.
    • 1
      News and announcements
      Speaker: Archisman Ghosh (Ghent University)
    • 2
      CW
      Speakers: Magdalena Sieniawska (UCLouvain, CP3), Andrew Miller (UCLouvain), Antoine Depasse (IRMP - CP3)
    • 3
      SGWB
      Speakers: Max Lalleman (University of Antwerp), Guillaume Boileau (UAntwerpen), Kevin Turbang (Vrije Universiteit Brussel/Universiteit Antwerpen), Kamiel Janssens (UAntwerpen), Nick van Remortel (Universiteit Antwerpen), Simone Blasi (VUB), Aäron Rase (Vrije Universiteit Brussel), Hannah Duval (VUB), Alba Romero-Rodríguez (IFAE), Alberto Mariotti (Vrije Universiteit Brussel), Alexander Sevrin (Vrije Universiteit Brussel), Federico De Lillo (UCLouvain - CP3), Jishnu Suresh (Centre for Cosmology, Particle Physics and Phenomenology, Institute de Recherche en Mathématique et Physique, Université catholique de Louvain), Giacomo Bruno (Université de Louvain)
    • 4
      Instrumentation - mechanics
      Speakers: Pengbo Li (UAntwerpen), Kumar Akhil Kukkadapu (UAntwerpen), Anoop Koushik (UAntwerpen), Hans Van Haevermaet, Morgane Zeoli (UCLouvain), Joris van Heijningen (UCLouvain), Daniela Pascussi (UGent)
    • 5
      Computing
      Speaker: Andres Jorge Tanasijczuk (Universite catholique de Louvain)