Marco Baldi & Kazuya Koyama CSWG Task-6: Numerical tools for non-standard cosmological scenarios Second report on the activities of the CSWG-T6 Euclid CSWG-OUSIM joint kick-off meeting Barcelona, 9 VII 2012
aims of the CSWG-T6 Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
aims of the CSWG-T6 1) Develop, test, and optimize numerical tools (N-body codes, Initial Conditions generators, Halo finders and other post-processing algorithms) suitable to investigate cosmological scenarios beyond the plain standard Λ CDM as defined by the Theory WG Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
aims of the CSWG-T6 1) Develop, test, and optimize numerical tools (N-body codes, Initial Conditions generators, Halo finders and other post-processing algorithms) suitable to investigate cosmological scenarios beyond the plain standard Λ CDM as defined by the Theory WG 2) Coordinate the long-term simulations program for such models by defining the appropriate numerical parameters for different types of cosmological simulations and a standardized format for the output deliverables, in close collaboration with the other Tasks of the CSWG Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
aims of the CSWG-T6 1) Develop, test, and optimize numerical tools (N-body codes, Initial Conditions generators, Halo finders and other post-processing algorithms) suitable to investigate cosmological scenarios beyond the plain standard Λ CDM as defined by the Theory WG 2) Coordinate the long-term simulations program for such models by defining the appropriate numerical parameters for different types of cosmological simulations and a standardized format for the output deliverables, in close collaboration with the other Tasks of the CSWG 3) Coordinate science applications of the simulations of non-standard cosmological models in connection with all the different SWGs Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
aims of the CSWG-T6 1) Develop, test, and optimize numerical tools (N-body codes, Initial Conditions generators, Halo finders and other post-processing algorithms) suitable to investigate cosmological scenarios beyond the plain standard Λ CDM as defined by the Theory WG 2) Coordinate the long-term simulations program for such models by defining the appropriate numerical parameters for different types of cosmological simulations and a standardized format for the output deliverables, in close collaboration with the other Tasks of the CSWG 3) Coordinate science applications of the simulations of non-standard cosmological models in connection with all the different SWGs Presently about 15 participants Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
Cosmological models beyond Λ CDM 1. Quintessence and Early Dark Energy including dynamic scalar field models and phenomenological parametrizations 2. Inhomogeneous large-void models including LTB cosmologies parametrized by the structural properties of the density void , in particular of its radius r 0 . 3. Warm Dark Matter including models with a thermal relic of particles with mass in the range m WDM =[0.5,2.0] keV . 4. Non-Gaussian initial conditions including Local, Equilateral, and Orthogonal types of non-Gaussianity in the primordial density field. 5. Massive Neutrinos including models with a cosmological fraction of massive neutrinos. 6. Self-Interacting Dark Matter including microscopic models of Dark Matter scattering and short-range scalar forces (Loeb & Weiner 2011). 7. Linear spatial Dark Energy fluctuations including Coupled Dark Energy , Extended Quintessence , and Clustering Dark Energy models. 8. Non-linear spatial Dark Energy fluctuations including Modified Gravity theories and massive coupled scalar field Dark Energy scenarios. Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
milestones of the CSWG-T6 Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
milestones of the CSWG-T6 1) Carry out a preliminary survey among the Task members to gather information on already existing tools and presently available simulations for each of the 8 classes of non-standard cosmologies; Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
available codes 1. Quintessence and Early Dark Energy including dynamic scalar field models and phenomenological parametrizations 5 groups actively working on class 1, some very large simulations ( DEUSS ) already available gadget - based N-body codes: Baldi (Munich) / Dolag (Munich) / Carlesi & Knebe (Madrid) ramses - based N-body codes: Alimi & Corasaniti (Paris) grafic - based zoom IC generator: Penzo & Maccio ʼ (Heidelberg) 2. Inhomogeneous large-void models including LTB cosmologies parametrized by the structural properties of the density void , in particular of its radius r 0 . 1 group actively working on class 2, some large simulations already available gadget - based N-body codes: Garcia-Bellido (Madrid) 3. Warm Dark Matter including models with a thermal relic of particles with mass in the range m WDM =[0.5,2.0] keV . 1 group actively working on class 3, some medium-size simulations already available gadget - based N-body codes: Viel & Baldi (Trieste, Munich) 4. Non-Gaussian initial conditions including Local, Equilateral, and Orthogonal types of non-Gaussianity in the primordial density field. 2 groups actively working on class 4, some large simulations already available gadget - based N-body codes: Dolag (Munich) / Baldi (Munich) cubep3m : Iliev (Sussex) Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
available codes 5. Massive Neutrinos including models with a cosmological fraction of massive neutrinos. 2 groups actively working on class 5, some medium-size simulations already available gadget - based N-body codes: Viel & Springel (Trieste, Heidelberg) / Hannestad (Aarhus) 6. Self-Interacting Dark Matter including microscopic models of Dark Matter scattering and short-range scalar forces (Loeb & Weiner 2011). 1 group actively working on class 6, no suitable simulations available yet N-body code: Pearce (Nottingham) 7. Linear spatial Dark Energy fluctuations including Coupled Dark Energy , Extended Quintessence , and Clustering Dark Energy models. 1 group actively working on class 7, some large simulations ( CoDECS ) already available gadget - based N-body codes: Baldi (Munich) ramses - based N-body codes: Li (Durham) 8. Non-linear spatial Dark Energy fluctuations including Modified Gravity theories and massive coupled scalar field Dark Energy scenarios. 3 groups actively working on class 8, some small simulations already available gadget - based N-body codes: mg-gadget Puchwein, Baldi & Springel (Heidelberg, Munich) ramses - based N-body codes: ecosmog Li, Koyama & Zhao (Durham, Portsmouth), Llinares, Winther & Mota (Oslo) Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
milestones of the CSWG-T6 1) Carry out a preliminary survey among the Task members to gather information on already existing tools and presently available simulations for each of the 8 classes of non-standard cosmologies; Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
milestones of the CSWG-T6 1) Carry out a preliminary survey among the Task members to ✓ gather information on already existing tools and presently available simulations for each of the 8 classes of non-standard cosmologies; Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
milestones of the CSWG-T6 1) Carry out a preliminary survey among the Task members to ✓ gather information on already existing tools and presently available simulations for each of the 8 classes of non-standard cosmologies; 2) Promote and coordinate specific code comparison initiatives for those scenarios for which N-body codes have been only recently developed and are not yet sufficiently tested (as e.g. Modified Gravity codes, Clustering Dark Energy); Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
example of (literature-based) code comparison Puchwein et al. 2012, in prep.
milestones of the CSWG-T6 1) Carry out a preliminary survey among the Task members to ✓ gather information on already existing tools and presently available simulations for each of the 8 classes of non-standard cosmologies; 2) Promote and coordinate specific code comparison initiatives for those scenarios for which N-body codes have been only recently developed and are not yet sufficiently tested (as e.g. Modified Gravity codes, Clustering Dark Energy); Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
milestones of the CSWG-T6 1) Carry out a preliminary survey among the Task members to ✓ gather information on already existing tools and presently available simulations for each of the 8 classes of non-standard cosmologies; 2) Promote and coordinate specific code comparison initiatives for ~ those scenarios for which N-body codes have been only recently developed and are not yet sufficiently tested (as e.g. Modified Gravity codes, Clustering Dark Energy); Marco Baldi - Euclid Collaboration Meeting, Copenhagen, 16 V 2012
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