Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 210, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0067-0049/210/1/14
Keywords
cosmology: theory; dark matter; galaxies: formation; galaxies: evolution; hydrodynamics methods: numerical
Categories
Funding
- University of California High-Performance AstroComputing Center (UC-HiPACC) at the University of California Santa Cruz
- NSF [AST-0955300, AST-1010033, OIA-1124453, AST-1229745, OCI-1053575, AST-0908819, PHY-0941373, PHY-0822648, PHYS-1066293, AST-0908499, OCI-0904484, PHY-1125897, AST-1211626]
- NASA [NNX13AB84G, NNX09AG01G]
- Chandra X-Ray Observatory [GO2-13162A]
- UC-HiPACC
- ISF [24/12, 1829/12]
- GIF [G-1052-104.7/2009]
- DIP
- I-CORE Program of the PBC
- Swiss National Science Foundation through the Ambizione Fellowship
- Astronomy Center for Theory and Computation Prize Fellowship at the University of Maryland
- Fulbright/MICINN Program
- LANL Institute for Geophysics and Planetary Physics, NASA [NNX09AD80G, NNX12AC98G]
- SNF [PP00P2_128540/1]
- Kavli Foundation
- Fermilab
- Kavli Institute for Cosmological Physics
- University of Chicago
- NSF CI TraCS Fellowship [OCI-1048505]
- Direct For Computer & Info Scie & Enginr [1339624] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien [1211626, 0955300, 1009908, 1010033] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [1333360, 1229745] Funding Source: National Science Foundation
- Office of Advanced Cyberinfrastructure (OAC) [0832614, 1048505] Funding Source: National Science Foundation
- Office of Integrative Activities [1124453] Funding Source: National Science Foundation
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We introduce the Assembling Galaxies Of Resolved Anatomy (AGORA) project, a comprehensive numerical study of well-resolved galaxies within the Lambda CDM cosmology. Cosmological hydrodynamic simulations with force resolutions of similar to 100 proper pc or better will be run with a variety of code platforms to follow the hierarchical growth, star formation history, morphological transformation, and the cycle of baryons in and out of eight galaxies with halo masses M-vir similar or equal to 10(10), 10(11), 10(12), and 10(13) M-circle dot at z = 0 and two different (violent and quiescent) assembly histories. The numerical techniques and implementations used in this project include the smoothed particle hydrodynamics codes GADGET and GASOLINE, and the adaptive mesh refinement codes ART, ENZO, and RAMSES. The codes share common initial conditions and common astrophysics packages including UV background, metaldependent radiative cooling, metal and energy yields of supernovae, and stellar initial mass function. These are described in detail in the present paper. Subgrid star formation and feedback prescriptions will be tuned to provide a realistic interstellar and circumgalactic medium using a non-cosmological disk galaxy simulation. Cosmological runs will be systematically compared with each other using a common analysis toolkit and validated against observations to verify that the solutions are robust-i.e., that the astrophysical assumptions are responsible for any success, rather than artifacts of particular implementations. The goals of the AGORA project are, broadly speaking, to raise the realism and predictive power of galaxy simulations and the understanding of the feedback processes that regulate galaxy metabolism. The initial conditions for the AGORA galaxies as well as simulation outputs at various epochs will be made publicly available to the community. The proof-of-concept dark-matter-only test of the formation of a galactic halo with a z = 0 mass of M-vir similar or equal to 1.7 x 10(11) M-circle dot by nine different versions of the participating codes is also presented to validate the infrastructure of the project.
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