Diffusion PNCG – n° 256 – 15 mars 2023

1. Prospective INP Lois fondamentales de l’Univers
2. Website of the Tools and Methodology Working Group of the GDR CoPhy
3. Varenna School 2023 – Neutrino Physics, Astrophysics and Cosmology (June 27 to July 6th 2023, Varenna, Italy)
4. IAU Division J for APRIM 2023 (August 2023, Japan)
5. Second MaNiTou Summer School on Gravitational Waves (July 3-8 2023, Nice, France)
6. 16th edition of the GECO conference: “Shedding new light on the first billion year of the Universe” (3-7 juil. 2023, Marseille)
7. Atelier Outils / Dark Energy (5-7 June 2023, IAP, Paris)
8. Conference second announcement: “Neutral Hydrogen as a Cosmological Probe Across Cosmic Time” (May 15th to 19th, Nazareth, Israel)
9. 10th Astronomical Data Analysis Summer School (September 18-22, 2023, Crete, Greece)

Envoyez svp vos propositions d’annonces à l’adresse : pncg@iap.fr
Pour vous inscrire ou gérer votre abonnement à la liste PNCG: https://listes.services.cnrs.fr/wws/info/pncg 

1. Prospective INP Lois fondamentales de l’Univers

L’Institut de physique du CNRS prépare sa prospective scientifique pour nourrir la réflexion sur l’évolution de la physique à l’horizon 2030 (https://www.inp.cnrs.fr/fr/prospective-scientifique). 

L’élaboration de cette prospective se fait en plusieurs phases. La première phase était une enquête effectuée auprès de l’ensemble de la communauté des physiciens et physiciennes des laboratoires et des GdRs de l’INP.  

À l’issue de cette consultation, 14 thématiques ont été identifiées et le travail de prospective entame sa seconde phase.
Une des thématiques porte sur les tests des lois fondamentales de l’univers (Interactions fondamentales, cosmologie, particules élémentaires, ondes gravitationnelles, physique, outils mathématiques, métrologie, constantes fondamentales…).

Nous souhaitons associer à cette prospective scientifique tout le personnel des unités du CNRS dont les domaines de recherche relèvent de cette thématique. 

Pour cela, nous avons entre autres mis en place un formulaire axé sur les mesures de précision à basse énergie pour que tous ceux et celles qui souhaitent contribuer à ce travail puissent nous faire part de leur contribution.

Nous avons fixé la date limite de soumission des contributions au 22 mars 2023.

Voici le lien vers ce formulaire : https://framaforms.org/prospective-inp-theme-lois-fondamentales-de-lunivers-enjeux-des-mesures-de-precision-a-basse-energie

Transmis par S. Bize, B. Darquié et S. Guellati-Khelifa

2. Website of the Tools and Methodology Working Group of the GDR CoPhy

As we had advertised during the kick-off meeting of the GDR, the WG Tools has its website, offering you the possibility to advertise your tools (software, notebooks, hardware, …) which are relevant to our community.

The page is accessible here at the address https://univers.iap.fr/gdr_tools and is linked to the website of the GDR. 
The submission form (https://univers.iap.fr/gdr_tools/new_tool.php) will ask you to confirm with a link sent by email.

Thanks a lot to all who have already filled up some form and whose tools are visible on the page https://univers.iap.fr/gdr_tools/tools.php .
transmis par G. Lavaux & Y. Rasera

3. Varenna School 2023 – Neutrino Physics, Astrophysics and Cosmology (June 27 to July 6th 2023, Varenna, Italy)The ISAPP School 2023 on Neutrino Physics, Astrophysics and Cosmology, will be held in beautiful Varenna, Italy, on June 27 to July 6th, 2023.

All relevant information can be found in the school website at the following link:

Note that the program now includes the possibility for students to prepare a poster, to be exhibited and briefly presented in a dedicated session.
Transmis par M. Bersanelli

4. IAU Division J for APRIM 2023 (August 2023, Japan)

With this communication, I would like to encourage you to promote participation from the members in your Division J, for Asia Pacific Regional IAU Meeting 2023 (https://aprim2023.org) to be held in my home country Japan in August 2023. 
As in other regions of IAU, the regional meeting in 2020 was cancelled, hence this year’s APRIM 2023 will provide a greater opportunity for researchers to interact with others and create or renew networks.

For your division “Galaxies and Cosmology,”  the relevant session could be the following:
    5. Galaxy, Galaxies and their Beginnings

The initial deadline of the abstract submission is March 10. However we may extend the closing  date by a week until March 17 to ensure sufficient participation from the IAU members in this region.

Thanks in advance for your support. I am sure forwarding this email to the IAU Secretary will reach respective members, if you don’t have access to the mailing list.
transmis par J. Watanabe (Vice President of IAU, and SOC Co-chair of APRIM 2023)

5. Second MaNiTou Summer School on Gravitational Waves (July 3-8 2023, Nice, France)

Date: July 3-8 2023. 
Location: campus Valrose of the Université Cote d’Azur, Nice, France.
Website: https://indico.in2p3.fr/event/29050/

Registration deadline: registrations are open until the end of May 2023, but a first selection of the received student applications will be done at the beginning of April. We strongly encourage all perspective student participants to register before the end of March 2023.

The school will cover the emerging field of gravitational wave detection and of its scientific exploitation. The goal of the school is to provide the students with a solid introduction to most aspects of this interdisciplinary field in accelerated expansion. 

The school is open in priority to Master and PhD students, and also to young or not so young scientists who would like to get better acquainted with Gravitational Waves. 

The school is limited to 40 participants. Master and PhD students can be accommodate at a CROUS residence free of charge (cost paid by the school). 

School Programme: 

  • GR and GW Theory (7h) – Simone Speziale (CPT) 
  • Panorama of possible GW sources (1h) – Joe Romano (TTU) 
  • GW Data Analysis (3h) – Sylvain Marsat (L2IT) 
  • GW Instruments (3h)
    • On Ground (LIGO/Virgo, ET) – Walid Chaibi (OCA)
    • In Space (LISA) – Hubert Halloin (APC) 
  • Hands on data analysis (3h) – Simone Mastrogiovanni (INFN – La Sapienza) 
  • GW to study the Universe:
    • Astrophysics (1h30) – Astrid Lamberts (OCA) 
    • Cosmology (1h30) – Simone Mastrogiovanni (INFN – La Sapienza)
    • Fundamental Physics (1h30) – Mairi Sakellariadou (King’s College) 
    • Multi-Messager Astronomy (1h30) – Sarah Antier (OCA) 
  • Advanced seminars:
    • GW and Nuclear Physics (1h30) – Jerome Margueron (LP2I)
    • Pulsar Timing Arrays (PTA):
      • Science and Detection (1h30) – Gilles Theureau (LPC2E) 
      • SGWB Analysis (1h30) – Joe Romano (TTU) 
    • Deep Learning in GW physics (1h30) – Natalia Korsakova (APC)

transmis par N. TAMANINI 

6. 16th edition of the GECO conference: “Shedding new light on the first billion year of the Universe” (3-7 juil. 2023, Marseille)

The ‘Galaxies, stars and cosmology’ team at Laboratoire d’Astrophysique de Marseille is organizing the 16th edition of its cycle of conferences. 

This year’s edition is entitled “Shedding new light on the first billion year of the Universe” and will take place in Marseille from July 3 to 7 (https://geco2023-1gyr.sciencesconf.org). 

List of reviewers and invited speakers can be found here https://geco2023-1gyr.sciencesconf.org/resource/page/id/1
The sessions cover topics like the Reonization Era, the first generation of stars, the formation of massive structures, Galaxy assembly, star formation history, Strong Emission lines emitters or the synthesis of the first metals. 

Abstract submission for contributed talks or posters is open till April 30th. 

The conference will be held in hybrid mode, in person talks being preferred. 
transmis par V. Le Brun

7. Atelier Outils / Dark Energy (5-7 June 2023, IAP, Paris)

The WG Tools / ADE is organizing a workshop on June 5th to 7th, 2023 (included) at IAP.

This “hands-on” workshop (which we hope to be the start of a series) will be the opportunity to help at getting familiar with tools commonly used in cosmology. 
We have organized three blocks of tutorials:

  • CLASS and its practical usage (parameters, output files, limits, …) (N. Schöenberg) ;
  • MontePython to make a cosmological inference from CMB data (N. Schöenberg) ;
  • Use of Monofonic/Gadget/Ramses to compute an N-body simulation, alongside the diagnostics (C. Stahl).

Additionally, we have sessions opened for contributions. 

To participate to these sessions, please register (freely) on the website of the event (https://indico.in2p3.fr/event/29631/). 
Travels may be funded, in particular to invite participants giving a presentation, and for young researchers (take contact with the Organizing Committee).transmis par A. Blanchard, P. Brax, S. Codis, G. Lavaux, Y. Rasera, P. Zarrouk

8. Conference second announcement: “Neutral Hydrogen as a Cosmological Probe Across Cosmic Time” (May 15th to 19th, Nazareth, Israel)

Meeting Rationale:
In the last decades, probes of atomic hydrogen through the intensity mapping of the 21 cm line and Lyman-alpha emission and absorption have become essential tools for characterizing and understanding the physical conditions of the intergalactic medium (IGM) across cosmic time as well as the formation and evolution of the large scales structure (LSS) of the Universe. At early times   HI 21 cm radiation provides a unique probe of the first billion years of cosmic history (z~6 – 200), and its three eras: the Dark Ages, the Cosmic Dawn, and the Epoch of Reionization. These three epochs constitute the transition of our Universe from its early linear phases to the highly complex structures that we observe around us.  Each of these steps ushers the Universe into a new realm, probing different physical processes that can be used to understand the onset of structure formation in the Universe and its early stages, as well as the very nature of its initial conditions. 
Towards the end of the reionization process (around z~6.5), the Lyman-alpha transition provides the main tool for studying the IGM, either through direct emission or absorption against the continuum spectra of distant sources (QSOs and galaxies). These systems have proven to be a treasure trove for studying the IGM down to redshift ~ 2.
At the low redshift range (z= 0 – 2), the 21 cm emission, observed from discreet sources and intensity mapping studies, become an important probe again. This range of redshift is currently the subject of very active research that aims, among other things, at measuring the Baryonic Acoustic Oscillations, or the general large structure of the local Universe.
Research into these topics has been driven by current state-of-the-art facilities and will benefit hugely from the new generation of ground-based Optical and IR telescopes (e.g., VLT, LSST, Subaru) and radio observatories (e.g., LOFAR, MWA, HERA, SKA, EDGES)  as well as space-borne instruments, in particular JWST.
 The aim of this meeting is to bring together cosmologists and IGM and LSS astrophysicists in order to focus the attention of their diverse communities on current and future challenges in this field. With the meeting, we will promote greater interconnectivity between theorists, observers, simulators, and data analysts, in order to meet the exciting challenges that we face today and will continue to face in the coming years.

Main Meeting topics:

  1. HI intensity mapping.
  2. The Universe’s Dark Ages.
  3. The Cosmic Dawn.
  4. The Epoch of Reionization.
  5. First Stars and Galaxies.
  6. The status of the high redshift 21-cm experiments.
  7. Lyman alpha probes at intermediate redshifts (z~6.5-2).
  8. Intensity mapping of Baryonic Acoustic Oscillations at z<2.
  9. Probing cosmic filaments with intensity mapping.
  10. Cosmological constraints (Dark matter and dark energy).
  11. Statistical measures and analysis methods.
  12. Synergy with JWST and other probes.

Invited speakers:

  •     Rennan Barkana (Tel Aviv University)
  •     Gianni Bernardi (INAF- Inst. of Radio Astron., Bologna) 
  •     Tirth Choudhury (NCRA, Pune University )
  •     Benedetta Ciardi (MPA, Garching) 
  •     Anastasia Fialkov (IoA, Cambridge Univ.) 
  •     Martin Haehnelt (IoA, Cambridge Univ.) 
  •     Leon Koopmans (University of Groningen)
  •     Girish Kulkarni (Tata Institute, Mumbai)
  •     Jack Line (Curtin University, Perth)
  •     Florent Mertens (Paris Observatory)
  •     Andrei Mesinger (SNS, PISA) 
  •      Steven Murray (Arizona State University, Tempe)
  •     Andrè Offringa (ASRON & Univ. of Groningen) 
  •     Masami Ouchi (ICRR, Tokyo)
  •     Aaron Parsons (Univ. of California, Berkeley) 
  •     Jonathan Pritchard (Imperial College, London)
  •     Mario Santos (Univ. of Western Cape, Cape Town)
  •     Benoit Semelin (Observatoire de Paris)  Joe Silk (IAP, Paris) 
  •     Saurabh Singh (Raman Res. Inst., Bangalore)
  •     Matteo Viel (SISSA, Trieste) – TBC
  •     Naoki Yoshida (IPMU, Univ. of Tokyo)

The conference venue is the Legacy Hotel in Nazareth. 
The conference will be based on the invited reviews and talks and the submitted abstract by the registrants. 
The conference fee is 1200 NIS (about 300 Euros for early bird registration) and 1400 NIS for late registration. 
The fee will cover the conference reception, coffee breaks, lunch, excursion, and conference dinner.


  • January 31st, 2023 – Abstract submission opens
  • April 1st 20th, 2023 – Registration and Abstract submission deadline and end of the “early bird” registration fee.
  • April 15th, 2023 –  Announcement of the full program
  • May 15-19, 2023 – Meeting

transmis par S. Zaroubi

9. 10th Astronomical Data Analysis Summer School (September 18-22, 2023, Crete, Greece)

Registration is now open for the 10th Astronomical Data Analysis Summer School,  Hersonissos, September 18-22, 2023, Crete, Greece 

ADA X Web page: http://ada10.cosmostat.org/
transmis par J.L. Starck

Envoyez svp vos propositions d’annonces à l’adresse : pncg@iap.fr
Pour gérer votre abonnement à la liste PNCG: https://listes.services.cnrs.fr/wws/info/pncg