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ET Collaboration

Observational Science Board

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Written by: Giada Rossi
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The goal of the OSB is to define the science case for the Einstein Telescope. This involves studies of different detector configurations, construction of the data analysis platform, exploration of the computational needs for optimum science extraction and the interaction between ET and other GW/non-GW observatories.

The current chairs of the OSB are Marica Branchesi (GSSI-Italy, This email address is being protected from spambots. You need JavaScript enabled to view it.), Michele Maggiore (University of Geneva - Switzerland, This email address is being protected from spambots. You need JavaScript enabled to view it.) and Archisman Ghosh (University of Ghent - Belgium, This email address is being protected from spambots. You need JavaScript enabled to view it.)

The OSB consists of 10 research divisions, each investigating different scientific aspects. The divisions and their chairs are listed below:

  • Fundamental Physics: Chris van den Broeck (This email address is being protected from spambots. You need JavaScript enabled to view it.), Paolo Pani (This email address is being protected from spambots. You need JavaScript enabled to view it.), Raphael Porto (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Cosmology: Archisman Ghosh (This email address is being protected from spambots. You need JavaScript enabled to view it.), Angelo Ricciardone (This email address is being protected from spambots. You need JavaScript enabled to view it.), Mairi Sakellariadou (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Population Studies: Giulia Cusin (This email address is being protected from spambots. You need JavaScript enabled to view it.), Michela Mapelli (This email address is being protected from spambots. You need JavaScript enabled to view it.), Antonio Riotto (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Multimessenger observations: Giancarlo Ghirlanda (This email address is being protected from spambots. You need JavaScript enabled to view it.), Andrew Levan (This email address is being protected from spambots. You need JavaScript enabled to view it.), Susanna Vergani (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Synergies with other GW observatories: Monica Colpi (This email address is being protected from spambots. You need JavaScript enabled to view it.), Bangalore Sathyaprakash (This email address is being protected from spambots. You need JavaScript enabled to view it.), Samaya Nissanke (This email address is being protected from spambots. You need JavaScript enabled to view it.), Nicola Tamanini (This email address is being protected from spambots. You need JavaScript enabled to view it.),
  • Nuclear Physics: Tim Dietrich (This email address is being protected from spambots. You need JavaScript enabled to view it.), Tanja Hinderer (This email address is being protected from spambots. You need JavaScript enabled to view it.), Micaela Oertel (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Stellar collapse and isolated neutron stars: Ik Siong Heng (This email address is being protected from spambots. You need JavaScript enabled to view it.), Marco Limongi (This email address is being protected from spambots. You need JavaScript enabled to view it.), Cristiano Palomba (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Waveforms: Laura Bernard (This email address is being protected from spambots. You need JavaScript enabled to view it.), Harald Pfeiffer (This email address is being protected from spambots. You need JavaScript enabled to view it.), Patricia Schmidt (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Common Tools: Michal Bejger (This email address is being protected from spambots. You need JavaScript enabled to view it.), Michele Mancarella (This email address is being protected from spambots. You need JavaScript enabled to view it.), Andrea Maselli (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • Data analysis platform: Elena Cuoco (This email address is being protected from spambots. You need JavaScript enabled to view it.), Gianluca Guidi (This email address is being protected from spambots. You need JavaScript enabled to view it.), Anuradha Samajdar (This email address is being protected from spambots. You need JavaScript enabled to view it.), Tania Regimbau (This email address is being protected from spambots. You need JavaScript enabled to view it.)

 

OSB publications

A full list of OSB publications can be found here. 

Most recent OSB publications

  • Science with the Einstein Telescope: a comparison of different designs, M. Branchesi, M. Maggiore, D. Alonso, C. Badger, B. Banerjee, F. Beirnaert, S. Bhagwat, G. Boileau, S. Borhanian et al (arXiv:2303.15923)
  • Searching for Primordial Black Holes with the Einstein Telescope: impact of design and systematics, G. Franciolini, F. Iacovelli, M. Mancarella, M. Maggiore, P. Pani, A. Riotto (arXiv:2304.03160)
  • Stochastic gravitational-wave background at 3G detectors as a smoking gun for microscopic dark matter relics, G. Franciolini, P. Pani  (arXiv:2304.13576)
  • Landscape of stellar-mass black-hole spectroscopy with third-generation gravitational-wave detectors, S. Bhagwat, C. Pacilio, P. Pani, M. Mapelli (arXiv:2304.02283)
  • Binary black hole mergers from Population III stars: uncertainties from star formation and binary star properties, F. Santoliquido, M. Mapelli, G. Iorio, G. Costa, S. C. O. Glover, T. Hartwig, R. S. Klessen, L. Merli (arXiv:2303.15515)
  • Precessing binary black holes as engines of electromagnetic helicity, N. Sanchis-Gual, A. Del Rio (arXiv:2303.15534)
  • Gravitational Wave Eigenfrequencies from Neutrino-Driven Core-Collapse Supernovae, N. E. Wolfe, C. Frohnlich, J. M. Miller, A. Torres-Forne, P. Cerdá-Durán (arXiv:2303.16962)
  • Convolutional neural network search for long-duration transient gravitational waves from glitching pulsars, L. M. Modafferi, R. Tenorio, D.  Keitel (arXiv:2303.16720)
  • Eccentric black hole mergers via three-body interactions in young, globular and nuclear star clusters, M. Dall'Amico, M. Mapelli, S. Torniamenti, M. Arca Sedda (arXiv:2303.07421)
  • Differentially rotating scalarized neutron stars with realistic post-merger profile, K. V. Staykov, D. D. Doneva, L. Heisenberg, N. Stergioulas, Stoytcho S. Yazadjiev (arXiv:2303.07769)
  • Revealing the strength of three-nucleon interactions with the Einstein Telescope, H. Rose, N. Kunert,T.Dietrich, P. Pang, R. Smith, C. van den Broeck, S. Gandolfi, I. Tews (arXiv:2303.11201)
  • Bayesian parameter estimation on boson-star binary signals with a coherent inspiral template and spin-dependent quadrupolar corrections, Massimo Vaglio, Costantino Pacilio, Andrea Maselli, Paolo Pani (arXiv:2302.13954)
  • Prospects for the inference of inertial modes from hypermassive neutron stars with future gravitational-wave detectors. M. Miravet-Tenés, F. L. Castillo, R. De Pietri, P. Cerdá-Durán, J. A. Font (arXiv:2302.04553)
  • Effect of dynamical gravitomagnetic tides on measurability of tidal parameters for binary neutron stars using gravitational waves, P. Kumar Gupta, J. Steinhoff, T. Hinderer (arXiv:2302.11274)
  • General Relativistic Simulations of High-Mass Binary Neutron Star Mergers: rapid formation of low-mass stellar black holes, K. A. Cokluk, K. Yakut, B. Giacomazzo (arXiv:2301.09635)
  • Inference of proto-neutron star properties in core-collapse supernovae from a gravitational-wave detector network, T. Bruel, M.-A. Bizouard,  M. Obergaulinger, P. Maturana-Russel, A. Torres-Forne, P. Cerdá-Durán, N. Christensen, J. A. Font, R. Meyer (arXiv:2301.10019)
  • Detecting VHE prompt emission from binary neutron-star mergers: ET and CTA synergies. Banerjee B., Oganesyan G., Branchesi M., Dupletsa U., Aharonian F., Brighenti F., Goncharov B., et al., 2022, (arXiv:2212.14007)
  • When Love fades away: Modelling frequency-dependent tidal deformability for environmental black-hole mergers, V. De Luca, A. Maselli, P. Pani (arXiv:2212.03343)

News

The upcoming ET Symposium will take place in Maastricht from May 6th at noon until May 10th early afternoon. This symposium gives the chance to unite with colleagues deeply engaged in the Einstein Telescope project and those who share a profound interest in ET. Together, we'll delve into recent advancements and exchange insights while forging lasting connections.

The web page of the event is available here: https://indico.ego-gw.it/event/710/ 

Krzysztof (Chris) Belczynski  pioneered the study of massive black hole formation from the collapse of metal-poor progenitors, several years before the advanced detectors' era. He demonstrated that binary population synthesis is the necessary starting point to understand the (astro)physics of binary compact objects, unraveling the importance of stellar winds, mass transfer, and common envelope. Thanks to his work, we  understand why LIGO and Virgo have observed many more binary black holes than neutron star mergers. For many years to come, his models will be a cornerstone for the science case of the Einstein telescope, as well as for the other implications of massive binary star evolution across cosmic time. His volcanic, unconventional, and provocative personality will be sorely missed.

 

 

The 2nd Einstein Telescope Annual Meeting (Nov, 14, 2023 - Nov, 16, 2023)  will be the opportunity to discuss key points of the ET collaboration and of the ET design.

The meeting is hosted by the “Gravitational waves” group of the Astroparticles, Astrophysics and Cosmology (A2C) department of the Irène Joliot-Curie Laboratoire des deux infinis (IJCLab). It will take place in the IJCLab Lehmann auditorium (building 200) in the campus of the Paris-Saclay University. Open to all ET collaboration members, it will start on Tuesday morning November 14th and end on Thursday November 16th at lunch time. In-person and remote registrations are possible.

Indico page: https://indico.ijclab.in2p3.fr/event/9686 

The XIII symposium of the Einstein Telescope (ET) will be held in Cagliari, at the THotel from May 8th to May 12th 2023. 

The Symposium is organized in parallel sessions, hosting workshops managed by the ET specific boards (EIB, ISB, OSB and SPB), and a plenary sessions to have a global view of all the activities on going.  

Along the week several lectures on the physics of ET will be organized with the support of the OSB for PhD students and young researchers.

All the details are available in the Indico page of the event:
https://indico.ego-gw.it/event/562/ 

The second Site Preparation Board (SPB) workshop will take place from23-26 January 2023, Maastricht (NL). This will be the occasion to discuss and get updates on the various activities taking place at the sites aspiring to possibly host the future Einstein Telescope (Sardegna in Italy, EMR partially in Belgium, Germany & The Netherlands and possibly Lausitz in Germany). In particular (hydro)geology aspects, noise environment, legal/permitting affairs, bidbook organization, schedules, excavation costs, local funding and future plans, etc. will be discussed. Apart from plenary presentations, lots of time will be reserved for discussions. 

The venue of the workshop is Thiessen Wineries, Maastricht, Grote Gracht 18, 6211SW, Maastricht, The Netherlands. See: https://thiessen.nl/. A maximum of 50 participants can be hosted in person. A video (Zoom) link will be provided to allow remote attendance.

Indico page here: https://indico.ego-gw.it/event/525/