The Santa Barbara cluster comparison project: A comparison of cosmological hydrodynamics solutions
dc.contributor.author | Frenk, C. S. | en_US |
dc.contributor.author | White, S. D. M. (Simon D. M.) | en_US |
dc.contributor.author | Bode, P. | en_US |
dc.contributor.author | Bond, J. R. | en_US |
dc.contributor.author | Bryan, G. L. | en_US |
dc.contributor.author | Cen, R. | en_US |
dc.contributor.author | Couchman, H. M. P. | en_US |
dc.contributor.author | Evrard, August E. | en_US |
dc.contributor.author | Gnedin, N. | en_US |
dc.contributor.author | Jenkins, A. R. | en_US |
dc.contributor.author | Khokhlov, A. M. | en_US |
dc.contributor.author | Klypin, Anatoly | en_US |
dc.contributor.author | Navarro, J. F. | en_US |
dc.contributor.author | Norman, M. L. | en_US |
dc.contributor.author | Ostriker, J. P. | en_US |
dc.contributor.author | Owen, J. M. | en_US |
dc.contributor.author | Pearce, Frazer R. | en_US |
dc.contributor.author | Pen, U. L. | en_US |
dc.contributor.author | Steinmetz, M. | en_US |
dc.contributor.author | Thomas, P. A. | en_US |
dc.contributor.author | Villumsen, J. V. | en_US |
dc.contributor.author | Wadsley, James | en_US |
dc.contributor.author | Warrren, M. S. | en_US |
dc.contributor.author | Xu, G. | en_US |
dc.contributor.author | Yepes, G. | en_US |
dc.date.accessioned | 2008-08-14T19:12:34Z | |
dc.date.available | 2008-08-14T19:12:34Z | |
dc.date.issued | 1999-11-10 | en_US |
dc.identifier.citation | Frenk, CS; White, SDM; Bode, P; Bond, JR; Bryan, GL; Cen, R; Couchman, HMP; Evrard, AE; Gnedin, N; Jenkins, A; Khokhlov, AM; Klypin, A; Navarro, JF; Norman, ML; Ostriker, JP; Owen, JM; Pearce, FR; Pen, UL; Steinmetz, M; Thomas, PA; Villumsen, JV; Wadsley, JW; Warrren, MS; Xu, G; Yepes, G. (1999). Astrophysical Journal, 525:(2, Part1) 554-582. <http://hdl.handle.net/2027.42/60617> | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://arxiv.org/abs/astro-ph/9906160 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/60617 | |
dc.description.abstract | We have simulated the formation of an X-ray cluster in a cold dark matter universe using 12 different codes. The codes span the range of numerical techniques and implementations currently in use, including smoothed particle hydrodynamics (SPH) and grid methods with fixed, deformable, or multilevel meshes. The goal of this comparison is to assess the reliability of cosmological gasdynamical simulations of clusters in the simplest astrophysically relevant case, that in which the gas is assumed to be nonradiative. We compare images of the cluster at different epochs, global properties such as mass, temperature and X-ray luminosity, and radial profiles of various dynamical and thermodynamical quantities. On the whole, the agreement among the various simulations is gratifying, although a number of discrepancies exist. Agreement is best for properties of the dark matter and worst for the total X-ray luminosity. Even in this case, simulations that adequately resolve the core radius of the gas distribution predict total X-ray luminosities that agree to within a factor of 2. Other quantities are reproduced to much higher accuracy. For example, the temperature and gas mass fraction within the virial radius agree to within about 10%, and the ratio of specific dark matter kinetic to gas thermal energies agree to within about 5%. Various factors, including differences in the internal timing of the simulations, contribute to the spread in calculated cluster properties. Based on the overall consistency of results, we discuss a number of general properties of the cluster we have modeled. | en_US |
dc.format.extent | 515529 bytes | |
dc.format.extent | 18 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Univ Chicago Press | en_US |
dc.subject | Cosmology : Theory | en_US |
dc.subject | Dark Matter | en_US |
dc.subject | Galaxies : Clusters : General | en_US |
dc.subject | Large-scale Structure of Universe | en_US |
dc.subject | X-rays : Galaxies | en_US |
dc.title | The Santa Barbara cluster comparison project: A comparison of cosmological hydrodynamics solutions | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA | en_US |
dc.contributor.affiliationother | Univ Durham, Dept Phys, Durham DH1 3LE, England | en_US |
dc.contributor.affiliationother | Max Planck Inst Astrophys, D-85740 Garching, Germany | en_US |
dc.contributor.affiliationother | Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA | en_US |
dc.contributor.affiliationother | Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada | en_US |
dc.contributor.affiliationother | Univ Toronto, Dept Astron, Toronto, ON M5S 3H8, Canada | en_US |
dc.contributor.affiliationother | MIT, Dept Phys, Cambridge, MA 02139 USA | en_US |
dc.contributor.affiliationother | Princeton Univ Observ, Princeton, NJ 08544 USA | en_US |
dc.contributor.affiliationother | Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada | en_US |
dc.contributor.affiliationother | Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA | en_US |
dc.contributor.affiliationother | USN, Res Lab, Computat Phys & Fluid Dynam Lab, Washington, DC 20375 USA | en_US |
dc.contributor.affiliationother | New Mexico State Univ, Dept Astron, Las Cruces, NM 88001 USA | en_US |
dc.contributor.affiliationother | Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 2P6, Canada | en_US |
dc.contributor.affiliationother | Univ Illinois, NCSA, Lab Computat Astrophys, Urbana, IL 61801 USA | en_US |
dc.contributor.affiliationother | Univ Illinois, Dept Astron, Urbana, IL 61801 USA | en_US |
dc.contributor.affiliationother | Ohio State Univ, Dept Astron, Columbus, OH 43210 USA | en_US |
dc.contributor.affiliationother | Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA | en_US |
dc.contributor.affiliationother | Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA | en_US |
dc.contributor.affiliationother | Univ Arizona, Steward Observ, Tucson, AZ 85721 USA | en_US |
dc.contributor.affiliationother | Univ Sussex, Brighton BN1 9QH, E Sussex, England | en_US |
dc.contributor.affiliationother | Univ Calif Santa Cruz, Board Studies Astron & Astrophys, Santa Cruz, CA 95064 USA | en_US |
dc.contributor.affiliationother | Univ Autonoma Madrid, Dept Fis Teor 100 11, E-28049 Madrid, Spain | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/60617/1/Frenk1999-SantaBarbara.pdf | |
dc.identifier.doi | http://dx.doi.org/10.1086/307908 | en_US |
dc.owningcollname | Astrophysics (Physics, Department of) |
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