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Journees de l'ATPEM 2025

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salle Charpak LPNHE (Campus Jussieu)

salle Charpak LPNHE

Campus Jussieu
Description

The Action Thématique Phénomènes Extrêmes et Multi-messagers (ATPEM, formerly PNHE) is an INSU thematic action since 2011, supported by IN2P3, INP, CNES, and CEA/IRFU.

The ATPEM days will take place from October 1 to 3, 2025 in the LPNHE Charpak room in Jussieu. The event will provide an opportunity to make an overview of the current state of extreme and multi-messenger phenomena in France.

The deadline for submission of contributions is: June 1
The final program will be distributed on June 15.

Deadline for registration (and for the participation to the apéritif dînatoire): July 1

  • Wed, October 1
    • Welcome, Organisation des journées: P.O. Petrucci, D. Maurin
      presentation.key
      presentation.pdf
      • 1
        Informations générales
        Speaker: pierre-olivier petrucci (IPAG)
        presentation.pdf
    • Origine, production et transport des particules de HE (photons, neutrinos et RC)
      Convener: Astrid Lamberts (Observatoire de la Côte d'Azur)
      • 2
        Particle acceleration in extreme environment: Martin Lemoine (APC)
        Speaker: Martin Lemoine (APC (Astroparticule & Cosmologie, CNRS - Université de Paris))
        Lemoine_ATPEM25.pdf
      • 3
        Facilitating multi-messenger modelling using Gammapy: Lea Heckmann (APC)
        Speaker: Lea Heckmann (APC)
        ATPEM_2025.pdf
      • 4
        In-ice radio signatures of cosmic-ray air showers for identification and background rejection: Simon Chiche (IIHE)
        Speaker: Simon Chiche (Institut d'Astrophysique de Paris)
        ATPEM2025_SimonChiche.pdf
    • 10:00 AM
      Coffee Break
    • Processus physiques en jeu dans l’environnement des objets compacts (NS & PWNe & Magnetars, systèmes binaires, AGN, BH)
      Convener: Astrid Lamberts (Observatoire de la Côte d'Azur)
      • 5
        HPC Results of black hole environment - Benjamin Crinquand (IRAP)
        Speaker: Mr Benjamin Crinquand (IRAP)
      • 6
        Spectro-polarimetric modelling of XrB observations in the JED-SAD/MONK framework: Rafan Muhammad (IPAG)
        Speaker: Mr Rafan Muhammad
      • 7
        Pulsar wind nebulae in wind-blown bubbles: Lioni-Moana Bourguinat (GSSI)
        Speaker: Lioni-Moana Bourguinat (GSSI)
        Bourguinat ATPEM 2025.pdf
    • Conclusions of the CNES propsectives: Philippe Laudet (CNES)
      Convener: Astrid Lamberts (Observatoire de la Côte d'Azur)
      • 8
        Prospective CNES
        Speaker: Mr Philippe Laudet
    • Conclusions of the INSU Prospectives: Benoit Famaey (OAS)
      Convener: Astrid Lamberts (Observatoire de la Côte d'Azur)
      • 9
        Prospective INSU-AA
        Speaker: Benoit Famaey (CNRS Observatoire astronomique de Strasbourg)
    • Discussion prospectives
      Convener: Astrid Lamberts (Observatoire de la Côte d'Azur)
    • 12:30 PM
      Lunch break
    • Enjeux sociétaux: The Carbon Footprint of Astronomy Research: Jurgen Knödlseder (IRAP) EN DISTANCIEL
      Conveners: Jerome Novak (Observatoire astronomique de Strasbourg - CNRS), Jürgen Knödlseder (IRAP)
      SF2A_Reseau_AGL_20250630.pdf
    • Origine, émissions multi-messagers et évolution temporelle des phénomènes transitoires (GRB, Supernovae, FRB,...): Chair: Jerome Novak
      Convener: Jerome Novak (Observatoire astronomique de Strasbourg - CNRS)
      • 10
        Science with SVOM (and Einstein Probe) - Bertrand Cordier (CEA)
        Speaker: Bertrand Cordier (CEA)
        SVOM_ATPEM_2025.pdf
      • 11
        Colibri: Where are we now? first results and opening up to the community: Stéphane Basa (LAM)
        Speaker: Stephane Basa (Laboratoire d'Astrophysique de Marseille)
        COLIBRI.key
      • 12
        Internal hydrodynamical shocks as a mechanism for GRB prompt emission: Arthur Charlet (ARCO)
      • 13
        Formation Channels of Gravitational-Wave Sources: Insights from Isolated Binary Evolution and Beyond: Aleksandra Olejak (MPIA)
        Speaker: Mrs Olejak
      • 14
        A scenario for short GRB precursor flares: tidal resonances of gravito-inertial modes in binary neutron stars: Alexis Reboul-Salze (AEI)
        Speaker: Alexis Reboul-Salze (CEA Saclay)
        Reboul_Salze_ATPEM_2025.pdf
      • 15
        Unfolding the high-redshift Universe with GRBs: Andrea Saccardi (AIM/CEA)
        Speaker: Andrea Saccardi (Observatoire de Paris - GEPI)
        ATPEM_ANDREASACCARDI_full.pdf
    • 4:10 PM
      Break
    • Recherche de nouvelle physique dans les données astrophysiques
      Convener: Jerome Novak (Observatoire astronomique de Strasbourg - CNRS)
    • Les moyens d'observation pour les thématiques PEM
      Convener: Jerome Novak (Observatoire astronomique de Strasbourg - CNRS)
      • 19
        PTA: what's new? Gilles Theureau (LPC2E)
        Speaker: Gilles THEUREAU (LPC2E, CNRS-Orléans and Nançay Radio Observatory, Paris Observatory)
        PTA_ATPEM_2025_GTheureau.pdf
      • 20
        Recent highlights from LHAASO: Dmitri Semikoz (APC)
        Speakers: Dmitri SEMIKOZ (APC, Paris), Dmitri Semikoz (APC, Paris)
        LHAASO_highlights_Oct2025_ATPEM_Paris.pdf
      • 21
        LSST and brokers: where are we now? Emille Ishida (LPCA)
        Speaker: Dr Emille Ishida (CNRS/LPC-Clermont)
        Ishida_brokers
      • 22
        Steps toward the fifth Fermi-LAT source catalog: Jean Ballet (AIM/CEA)
        Speaker: Jean Ballet (AIM, CEA Saclay)
        jballet_FL16Y_ATPEM25_v2.pdf
      • 23
        Towards highest and lowest energies for the High Energy Stereoscopic System (H.E.S.S.) in Namibia: Wassim Si Said (LLR)
        Speaker: Wassim Si Said (Laboratoire Leprince Ringuet (LLR))
        ATPEM-WSISAID.pdf
    • 7:00 PM
      Apéritif dinatoire dans les caves Esclangon, site de Jussieu

      A "buffet dinatoire" will be organized on Wednesday 1st Oct evening between 19h30 and 22h in the Esclangon cellars in the Jussieu campus basement

      https://sciences.sorbonne-universite.fr/faculte/location-despaces/hall-et-caves-esclangon

      They are located directly under the Esclangon building, at 4 place Jussieu, 75005 Paris, on the right as you enter the campus.

  • Thu, October 2
    • Les moyens d'observation pour les thématiques PEM
      Convener: Diego Gotz (CEA Saclay)
      • 24
        More than 20 years of observations by the HESS observatory and the future with CTA: Mathieu de Naurois (LLR)
        Speakers: Mathieu de Naurois (LLR Ecole Polytechnique), Mathieu de Naurois
        denauroi_HESS.pdf
      • 25
        Recent results from XRISM: Anne Decourchelle (CEA)
        Speaker: Anne Decourchelle Decourchelle (CEA Saclay)
        2025-10-02ATPEM_XRISM_Decourchelle.pdf
      • 26
        Early UV Follow-Up of Gravitational Wave Events with ULTRASAT: Weizmann Kiendrebeogo (CEA/IRFU)
        Speaker: R. Weizmann KIENDREBEOGO (CEA, Irfu)
        Weizmann_ATPEM_2025.pdf
    • Enjeux sociétaux: Association "vient voir mon taf" : Virginie Salmen
      Convener: Diego Gotz (CEA Saclay)
      SF2A_Reseau_AGL_20250630.pdf
    • 10:30 AM
      Break
    • Processus physiques en jeu dans l’environnement des objets compacts (NS & PWNe & Magnetars, systèmes binaires, AGN, BH)
      Convener: Diego Gotz (CEA Saclay)
      • 27
        Challenges to Line-Driven Wind Launching in AGN from Full Hydro-Radiation-Ionization Simulations: Nicolas Scepi (IPAG)
        Speaker: Nicolas Scepi (IPAG CNRS)
        Scepi_Nicolas_ATPEM.pdf
      • 28
        Bubbles of ionized gas around Ultraluminous X-ray sources: Anastasia Kilina (IRAP)
        Speaker: Mrs Anastasia Kilina
        ATPEM_2025.pdf
    • Discussion prospectives: Intervention des tutelles INSU, IN2P3, INP, CEA et CNES
      Convener: Diego Gotz (CEA Saclay)
      • 29
        Intervention INSU: Susanna Vergani
        Speaker: Susanna Diana VERGANI (CNRS-Observatoire de Paris)
        talk2025INSU.pdf
      • 30
        Intervention IN2P3: Nicolas Leroy
        Speaker: Nicolas Leroy (IJCLab IN2P3/CNRS)
      • 31
        Intervention INP: Bertrand Georgeot
        Speaker: Mr Bertrand Georgeot
      • 32
        Intervention CEA: Stéphane Mathis
        Speaker: Mr Stephane Mathis
      • 33
        Intervent CNES: Philippe Laudet
        Speaker: Philippe Laudet
    • 12:30 PM
      Lunch break
    • Origine, émissions multi-messagers et évolution temporelle des phénomènes transitoires (GRB, Supernovae, FRB,...)
      Convener: Stefano Gabici
      • 34
        Binary supermassive black holes: observations and constraints: Marta Volonteri (IAP)
        Speaker: Marta Volonteri
        ATPEM_2025.pdf
        ATPEM_2025.pptx
      • 35
        ACME: where are we now? Antoine Kouchner (APC)
        Speaker: Antoine Kouchner (Laboratoire APC)
      • 36
        The electromagnetic hunt for binary black holes: numerical, analytical & observational effort: Raphael Mignon-Risse (Universidad de Valladolid ) EN DISTANCIEL
        Speaker: Raphaël Mignon-Risse (CNES/APC)
      • 37
        Nuclear parameter inference with future observations of neutron stars: Lami Suleiman (Deutsches Elektronen-Synchrotron)
        Speakers: Lami Suleiman (Deutsches Elektronen Synchrotron), Ms Lami Suleiman (Laboratoire Univers et Théories)
        ATPEM2025.pdf
    • Enjeux sociétaux: Parity, gender and social bias - Thibaut Paumard (LIRA)
      Conveners: Stefano Gabici, Thibaut Paumard (LESIA - CNRS/Observatoire de Paris)
      SF2A_Reseau_AGL_20250630.pdf
    • Flash talks
      Convener: Stefano Gabici
      • 38
        Astronomie multi-messager : étude de signaux transitoires extrêmes en rayons gamma et neutrinos: P. Pichard (APC)
        Speaker: Pierre Pichard (APC)
        flashtalk_atpem_pichard.pdf
      • 39
        Feedback in galaxies: the role of cosmic rays: Nimatou S. Diallo (IAP)
        Speaker: Nimatou Seydi Diallo (IAP)
        Diallo_atpem_days.pdf
      • 40
        Particle acceleration in Ultra Fast Outflows: Baptiste Le Nagat Neher (LUX)
        Speaker: Baptiste Le Nagat Neher (Observatoire de Paris -- LUX)
        ATPEM_Le_Nagat_Neher.pdf
      • 41
        The environment of TeV halo progenitors: Lioni-Moana Bourguinat (GSSI)
        Speaker: Lioni-Moana Bourguinat (GSSI)
        ATPEM 2025 Bourguinat Flashtalk.pdf
      • 42
        Neutron star simulations as sources of gravitational waves: Jerome Novak (OAS)
        Speaker: Jerome Novak (Observatoire astronomique de Strasbourg - CNRS)
        novak_atpem.pdf
      • 43
        Precision cross-sections for advancing cosmic-ray physics and other applications: a comprehensive programme for the next decade: Maurin (LPSC)
        Speakers: David MAURIN (LPSC), David Maurin (LPSC)
        2025-10_AT-PEM.pdf
      • 44
        Understanding GRB progenitors from their environment: Jesse Palmerio (CEA)
        Speaker: Dr Jesse Palmerio (CEA/IRFU)
        flash_talk_Palmerio.pdf
      • 45
        Gamma-ray burst minimum variability timescale with Fermi/GBM: Romain Loic Maccary (Unife, Italy)
        Speaker: Mr Romain Loic Maccary
      • 46
        Testing planar matter distribution at the Galactic Center: Arianna Foschi (LIRA)
        Speaker: Arianna Foschi (Observatoire de Meudon)
        flash_talk_ATPEM.pdf
    • 4:03 PM
      Break
    • Processus physiques en jeu dans l’environnement des objets compacts (NS & PWNe & Magnetars, systèmes binaires, AGN, BH)
      Convener: Stefano Gabici
      • 47
        Kinetic Simulations of Flaring Activity in a Black Hole Magnetosphere: Enzo Figueiredo (IPAG)
        Speaker: Enzo Figueiredo (IPAG, CNRS, Université Grenoble Alpes)
      • 48
        The Rhythms of Chaos: Latest news about Quasi-Periodic Eruptions : Erwan Quintin (ESA)
        Speaker: Erwan Quintin (IRAP, Toulouse)
    • Recherche de nouvelle physique dans les données astrophysiques: Session 1
      Convener: Stefano Gabici
      • 49
        Origine of the Dark matter: where are we now ? Marco Cirelli (LPTHE)
        Speaker: Marco CIRELLI (LPTHE Jussieu CNRS)
        11.DMcandidates.JournéesATPEM.pdf
      • 50
        Résultats O4: etat des lieux et instrumentation future (Einstein telescope/Virgo nEXT) - Viola Sordini (IP2I)
        Speakers: Viola Sordini (IP2I Lyon), viola sordini (in2p3, infn)
        LVKO4_ATPEM_Oct2025_VSordini.pdf
      • 51
        InterGalactic Magnetic Fields and Gamma-Ray Bursts with CTAO: Ténéman Keita (CEA/IRFU)
        Speaker: Ténéman Keita (CEA Paris-Saclay)
        ATPEM_TKeita.pdf
    • Les moyens d'observation pour les thématiques PEM
      Convener: Stefano Gabici
      • 52
        KM3NeT/IceCube results - Valentin Decoene (Subatech)
        Speakers: Valentin Decoene (Institut d'Astrophysique de Paris), Valentin Decoene (Subatech / Nantes Université)
        KM3NeT_IceCube_Decoene-min.pdf
      • 53
        CTA-France : What’s new ? - Fabio Acero (AIM), Stefan Fegan (LLR), Pierre Cristofari (LUX)
        Speakers: Fabio Acero (CEA/Saclay), Mr Pierre Cristofari (Observatoire de Paris), Stephen Fegan (LLR, Ecole Polytechnique, IN2P3/CNRS), pierre cristofari (APC CNRS)
        CTAO_ATPEM_Oct_2025.pdf
  • Fri, October 3
    • Discussion prospectives: Re-organisation des SNO. Quid d'un SNO alerte?
      Convener: David MAURIN (LPSC)
      • 54
        La re-organisation des SNO: Franck Le Petit (Obs Paris)
        Speaker: Franck Le Petit Le Petit (LUTH - Observatoire de Paris)
        ReOrgSNO_251003_PEM.pdf
      • 55
        Vers un SNO Alerte? Susanna Vergani (Obs Paris) & Pierre-Olivier Petrucci (IPAG)
        Speaker: pierre-olivier petrucci (IPAG)
        SNO.pdf
    • Les moyens d'observation pour les thématiques PEM
      Convener: David MAURIN (LPSC)
      • 56
        NewAthena status report : Didier Barret (IRAP)
        Speaker: DIDIER BARRET (IRAP)
        2025_ATPEM_NewAthenaStatus.pdf
      • 57
        Review of the four years of IXPE operation: Frédéric Marin (OAS)
        Speaker: Frédéric Marin (Observatoire astronomique de Strasbourg)
        Marin.pdf
      • 58
        SKA-France : What’s new ? Chiara Ferrari (OCA)
        Speaker: Chiara Ferrari (Lagrange, OCA)
        SKA-France_ATPEM_251003.pdf
    • 10:30 AM
      Coffee Break
    • Les moyens d'observation pour les thématiques PEM
      • 59
        GRAND: état des lieux: Claire Guépin (LUPM)
        Speakers: Claire GUÉPIN-DETRIGNE (Laboratoire Univers et Particules de Montpellier), Claire Guepin (LUPM), Claire Guépin (IAP)
        ATPEM_Sep2025_GRAND_CG.pdf
      • 60
        Search for cosmic rays in GRANDProto300: Jolan LAVOISIER (IAP)
        Speaker: Mr Jolan Lavoisier
        ATPEM2025_compressed.pdf
    • Processus physiques en jeu dans l’environnement des objets compacts (NS & PWNe & Magnetars, systèmes binaires, AGN, BH)
      Convener: David MAURIN (LPSC)
      • 61
        Self-consistent simulations of the radiative transfer in gamma-rays in neutron star magnetospheres: Théo Francez (LUX)
        Speaker: Théo Francez (LUTh - Observatoire de Paris - PSL)
        2025_atpem_Francez.pdf
      • 62
        Probing Multi-TeV Emission in Pulsars: Perspectives from Fermi-LAT 3PC Phase-Resolved Spectral Analysis: Maxime Regeard (APC)
        Speaker: Maxime Regeard (APC, IN2P3, CNRS, Université Paris-Cité)
        ATPEM_RDA_pulsars.pdf
      • 63
        Tayler-Spruit dynamo to form magnetars: impact of rotation: Paul Barrere (Univ. Genève)
        Speakers: Paul Barrère (CEA), Paul Barrère (CEA Saclay/Département d'Astrophysique)
        BARRERE_ATPEM2025.pdf
      • 64
        Linking protoneutron star Tayler-Spruit dynamos to low-field magnetars: Raphael Raynaud (UPCité)
        Speaker: Raphaël Raynaud (CEA Saclay)
        talk_raynaud_atpem2025.pdf
    • Enjeux sociétaux: Astronomie participative
      Convener: David MAURIN (LPSC)
      SF2A_Reseau_AGL_20250630.pdf
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