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Towards a next space probe for CMB observations and cosmic origins exploration
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222/R-001 (CERN)
Description
The outstanding success of three generations of space missions dedicated to the study of the Cosmic Microwave Background has delivered invaluable insight into the origins of the universe and the physics of its earliest moments. It has founded a global cosmological model described by the expansion rate, various forms of matter and energy, spatial curvature, and primordial perturbations generated during a period of inflationary expansion. The model's free parameters are now measured to percent-level precision.
This remarkable success sharpens attention on a number of fundamental questions. What are the natures of dark matter and dark energy, accounting for 96% of the energy density of the Universe? Whether a phase of cosmic inflation actually seeded the initial perturbations awaits full demonstration, and the mechanisms that initiated inflation are not well understood or constrained.
Future observations of the CMB will validate or challenge this standard cosmological model, answer these open questions and provide further constraints on the fundamental properties of matter and interactions at energy scales up to twelve orders of magnitude higher than those attainable at the LHC. To exploit this exceptional potential, instruments must be designed with unprecedented performance.
We invite the scientific community to discuss the important issues of such a program during a four-day workshop at CERN. The first two days (May 17-18) of the workshop will be dedicated to the discussion of the science case, of the design of a future European or international CMB polarization space mission, and to the discussion of the synergy and complementarity with ground-based observations and with other cosmological probes. The second part of the meeting (May 19-20) will specifically target the preparation of the European proposal in response to the upcoming ESA call.
Attendance is encouraged for anyone interested. Talks during the first two days are by invitation only, short talk contributions to splinter meetings in the last two days can be submitted to conveners of the sessions.
The workshop is hosted and supported by CERN (Knowledge Transfer Group and Theory Department) and the University of Geneva (Theoretical Physics Department).
Participants
128
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Webcast
There is a live webcast for this event
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Introduction: Objective: Give a general introduction and an overall status and context 222/R-001
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Welcome from the LOCSpeaker: Enrico Chesta (CERN)
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Objectives of the workshop (10'+5)Speaker: Jacques Delabrouille (CNRS, Laboratoire APC, Paris)
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Scientific introduction (15'+5)Speaker: Francois Bouchet (Institut d'Astrophysique de Paris)
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Low-ell polarisation from Planck (20'+10)Speaker: Jean-Loup Puget (IAS, Orsay)
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CMB science case: Objective: review the science case, give background for the parallel session on science on day 3 222/R-001
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Jérôme Martin: Inflation (20'+10)
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Lensing science and de-lensing (20'+10)Speaker: Anthony Challinor (University of Cambridge)
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11:20
Coffee Break
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Neutrino physics (20'+10)Speaker: Julien Lesgourgues (Institute for Theoretical Particle Physics and Cosmology Aachen University)
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12:50
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Spectral-spatial distortions (15'+5)Speaker: Jens Chluba (University of Manchester)
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Galactic magnetic fields (15'+5)Speaker: François Boulanger (Université Paris Sud, Orsay, France)
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12
Extragalactic sources (15'+5)Speaker: Gianfranco de Zotti (INAF Osservatorio Astronomico di Padova)
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Cross-correlation science and cosmic velocity flows(20'+10')Speaker: Simone Ferraro (Berkeley)
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Remotely: Synergy with LSS probes (20'+10')Speaker: Thomas Kitching
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The CMB-S3 landscape (15'+5)Speaker: Clem Pryke (Dept. of Physics. The University of Minnesota, Minneapolis)
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CMB-S4 (20'+10)Speaker: John Carlstrom (The University of Chicago)
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17:10
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Progress with LiteBIRD (20'+10')Speaker: Masashi Hazumi (KEK-IPNS)
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Remotely by phone : CMB polarization with PIXIE (20'+10')Speaker: Dr Alan Kogut (NASA)
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Round table: moderated by Marco Bersanelli and François Bouchet - What next? science objectives and required observations: Objective: Open discussion of what are the strengths and weaknesses of possible future experiments, complementarity, what is our target science for the M5 proposal and what is the best strategy to get itSpeaker: Marco Bersanelli (Professor of Astronomy and Astrophysics)
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Objective: discuss the driving requirements and trade-offs for a
future space mission, to prepare the parallel session of day 3-
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Quijote (15'+5')Speaker: Jose-Alberto Rubino-Martin (Instituto de Astrofisica de Canarias)
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C-BASS (15'+5')Speaker: Mike Jones (The University of Manchester)
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Mathieu Remazeilles (on behalf of Clive Dickinson). : Foreground emissions (15'+5)Speaker: Mathieu Remazeilles (University of Manchester)
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M5 Proposal and mission design: Objective: discuss the driving requirements and trade-offs for a future space mission, to prepare the parallel session of day 3 222/R-001
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Report from the ESA CDF study (15'+5)Speaker: Jacques Delabrouille (CNRS, Laboratoire APC, Paris)
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The M5 concept: COrE/LiteCORE design and options (20'+5)Speaker: Paolo de Bernardis (University of Rome La Sapienza)
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Open discussion on the M5 proposal and options (20'+5)
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A KIDs focal plane for COrE/LiteCORE (15'+5')Speaker: Martino Calvo (Institut Neel, Grenoble)
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11:00
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US Contributions and MO (10')Speaker: Shaul Hanany (University of Minnesota/Twin Cities)
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Focal plane with horn coupled multi-chroic TES (20')Speaker: Joel Ullom (NIST (US))
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Focal plane with phased arrays TES (20')Speaker: Roger O'Brient (NASA)
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Focal plane with Sinuous Antenna, lens coupled (20')Speaker: John Carlstrom (The University of Chicago)
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High Performance Computing Resources (10')Speaker: Julian Borrill (Lawrence Berkeley National Laboratory)
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12:50
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Japanese plans w.r.t. international collaborationSpeaker: Masashi Hazumi (KEK)
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Discussion : implications for the M5 proposal
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Data analysis, simulations, systematics and calibration: Objective: Discuss status of simulations / forecasting, and discuss open issues, to prepare the parallel session of day 3 222/R-001
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The data analysis challenge (15'+5)Speaker: Julian Borrill (Lawrence Berkeley National Laboratory)
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Simulation plans (15'+5')Speaker: Paolo Natoli (University of Ferrara)
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Planck HFI Systematics and strategy for COrE (15'+5')Speaker: Guillaume Patanchon (Université Paris Diderot)
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Calibration and testing (15'+5')Speaker: Marco Bersanelli (University of Milano, Italy)
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16:20
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Exploring fundamental physics with gravitational waves"Speaker: Gian Giudice (CERN)
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Models of Inflation and Particle PhysicsSpeaker: Jonathan R. Ellis (University of London (GB))
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CERN Technology and experimental expertiseSpeaker: Enrico Chesta (CERN)
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Plans for parallel sessions (20')
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Concluding remarks (15'+5')Speaker: Reno Mandolesi (Bologna)
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Parallel: Focal plane and Payload: Objective: prepare the CORE/LiteCORE instrument and payload 40/S2-D01 - Salle DiracConveners: Paolo de Bernardis (University of Rome La Sapienza), Shaul Hanany (University of Minnesota/Twin Cities)
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Target sensitivity focal plane tradeoffs and requirementsSpeakers: Michel Piat (APC, Paris), Paolo de Bernardis (University of Rome La Sapienza)
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Telescope: baseline designSpeakers: Neil A. Trappe (NIU, Maynooth, Ireland), Shaul Hanany (University of Minnesota/Twin Cities)
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Discussion on telescope baseline
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KIDs detectors + developments in FranceSpeaker: Martino Calvo (Institut Neel, Grenoble)
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KIDs developments in ItalySpeaker: Paolo de Bernardis (University of Rome La Sapienza)
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CEB developmentsSpeaker: Leonid Kuzmin (Chalmers, Gothenburg, Sweden)
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Large‐area TES developments in ItalySpeaker: Flavio Gatti (University and INFN of Genova)
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Detectors couplingSpeaker: Giampaolo Pisano (Cardiff University, UK)
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Discussion on sensors technology
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11:35
Coffee Break
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Readout technology in the USSpeaker: Joel Ullom (NIST (US))
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Readout technology in FranceSpeakers: Damien Prele (APC, Paris, France), Martino Calvo (Institut Neel, Grenoble)
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Discussion on sensors/readout technology end of session
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Parallel: Science and simulations: Objective: prepare the CORE/LiteCORE science case 40/S2-C01 - Salle Curie
Objective: prepare the CORE/LiteCORE science caseSession Conveners: Science: Komatsu, Challinor; Simulations: Natoli, Banday,
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Constraints on Inflation for various missions 40/S2-C01 - Salle CurieSpeaker: Sebastian Clesse (Institute is Aachen)
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Cosmology from various missions 40/S2-C01 - Salle CurieSpeaker: Eleonora Di Valentino (Institut d'Astrophysique de Paris)
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Speaker: Alessandro Melchiorri
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Speaker: Jean-Baptiste Melin (CEA)
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Speaker: Jim Bartlett (APC, Paris)
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Speaker: Carlo Burigana (INAF, Bologna)
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Constraining local non-Gaussianity with the CIB 40/S2-C01 - Salle CurieSpeaker: Vincent Desjacques
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Speakers: Anthony Banday (IRAP, Toulouse), Mathieu Remazeilles (University of Manchester)
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Speakers: Fabio Finelli (INAF, Bologna), Martin Bucher Univ Paris 7/CNRS
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Speakers: Anthony Challinor (University of Cambridge), Jean-Baptiste Melin (CEA), Jim Bartlett (APC, Paris)
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Speaker: Paolo Natoli (University of Ferrara)
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12:30
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Parallel: Focal plane and Payload: Objective: prepare the CORE/LiteCORE instrument and payload 40/S2-D01 - Salle Dirac
Session Conveners: Focal Plane : de Bernardis, Hanany; Payload : Bersanelli, Maffei
Objective: prepare the CORE/LiteCORE instrument and payload-
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Payload Requirements and TradeoffsSpeaker: Bruno Maffei (Institut d'Astrophysique Spatiale)
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Outcome of CDF studySpeaker: Paolo de Bernardis (University of Rome La Sapienza)
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Scan strategy constraintsSpeaker: Jacques Delabrouille (CNRS, Laboratoire APC, Paris)
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Cooling ChainSpeakers: Gerard VERMEULEN (Institut Neel (CNRS)), Yan Pennec (Air Liquide, France)
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Remotely : Planck cryochain heritage: alternative 15-20K stage and lessons learnedSpeaker: Gianluca Morgante (IASF/INAF Bologna, Italy)
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Discussion on payload/thermal
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14:40
Coffee Break
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GRASP simulations and beam testingSpeakers: Fabrizio Villa (IASF/INAF Bologna, Italy), Maura Sandri (IASF/INAF Bologna, Italy)
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Telescope Technology TBD
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Discussion on telescope
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Guidelines for e2e Calibration planSpeaker: Marco Marco Bersanelli (Professor of Astronomy and Astrophysics)
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Impact on science: Handling systematics budgetSpeaker: Daniele Mennella (University of Milano, Italy)
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Instrument-level calibration: Planck HFI experience TBD
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Discussion on calibration
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End of Session - Visit to LHC
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Parallel: Science and simulations: Objective: prepare the CORE/LiteCORE science case 40/S2-C01 - Salle Curie
Session conveners: Science: Komatsu, Challinor; Simulations: Natoli, Banday,
Objective: prepare the CORE/LiteCORE science case
Contributions from the participants: contact session conveners- 82
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Component separation with COMMANDERSpeaker: Mathieu Remazeilles (University of Manchester)
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Carlos Hervias: component separation with CCA
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Forecasting statistical and systematic uncertaibtes of parametric component separationSpeaker: Josquin Errand
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14:40
Coffee break
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Bandpass mismatch correctionSpeaker: Guillaume Patanchon (Université Paris Diderot)
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Mapping polarization with COrESpeaker: Linda Polastri (Università di Ferrara and INFN)
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First group walks to CERN main reception to meet the guides: Must be at the reception at 16:45 222/R-001
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Visit of CERN: ATLAS Control Room + 3D movie 3162/R-D01 - ATLAS Visitor Centre
There will be 2 groups of 48 people . The visit lasts an hour
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Second group walks to CERN main reception to meet the guides: Must be at the reception at 17:45 222/R-001
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Visit of CERN: ATLAS Control Room + 3D movie 3162/R-D01 - ATLAS Visitor Centre
There will be 2 groups of 48 people . The visit lasts an hour
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Science reportSpeaker: Eiichiro Komatsu (Max-Planck-Institute for Astrophysics, Garching)
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10:30
Coffee Break
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Focal plane instrument reportSpeakers: Paolo de Bernardis (University of Rome La Sapienza), Shaul Hanany (University of Minnesota/Twin Cities)
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Payload reportSpeakers: Bruno Maffei (Institut d'Astrophysique Spatiale), Marco Bersanelli (Professor of Astronomy and Astrophysics)
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Organization: (splinter): Objective: organize the work for the proposal 222/R-001
Objective: organize the work for the proposal.
Separate discussions of the main sections. -
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