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  • Strawn, ClaytonUniversity of California, Santa Cruz (author)

The AGORA High-resolution Galaxy Simulations Comparison Project. VI. Similarities and Differences in the Circumgalactic Medium

  • Article/chapterEnglish2024

Publisher, publication year, extent ...

  • 2024

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  • LIBRIS-ID:oai:lup.lub.lu.se:922ca23b-6946-4dd8-b04c-2dfa45d425c7
  • https://lup.lub.lu.se/record/922ca23b-6946-4dd8-b04c-2dfa45d425c7URI
  • https://doi.org/10.3847/1538-4357/ad12cbDOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We analyze the circumgalactic medium (CGM) for eight commonly-used cosmological codes in the AGORA collaboration. The codes are calibrated to use identical initial conditions, cosmology, heating and cooling, and star formation thresholds, but each evolves with its own unique code architecture and stellar feedback implementation. Here, we analyze the results of these simulations in terms of the structure, composition, and phase dynamics of the CGM. We show properties such as metal distribution, ionization levels, and kinematics are effective tracers of the effects of the different code feedback and implementation methods, and as such they can be highly divergent between simulations. This is merely a fiducial set of models, against which we will in the future compare multiple feedback recipes for each code. Nevertheless, we find that the large parameter space these simulations establish can help disentangle the different variables that affect observable quantities in the CGM, e.g., showing that abundances for ions with higher ionization energy are more strongly determined by the simulation’s metallicity, while abundances for ions with lower ionization energy are more strongly determined by the gas density and temperature.

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  • Roca-Fàbrega, SantiLund University,Lunds universitet,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Complutense University of Madrid(Swepub:lu)sa5324ro (author)
  • Primack, Joel R.University of California, Santa Cruz (author)
  • Kim, Ji HoonSeoul National University (author)
  • Genina, AnnaMax Planck Institute for Astrophysic (author)
  • Hausammann, LoicSwiss Federal Institute of Technology,ETH Zürich (author)
  • Kim, HyeonyongSeoul National University (author)
  • Lupi, AlessandroUniversity of Milano-Bicocca,University of Insubria (author)
  • Nagamine, KentaroUniversity of Nevada, Las Vegas,Osaka University,University of Tokyo (author)
  • Powell, Johnny W.Reed College (author)
  • Revaz, YvesSwiss Federal Institute of Technology (author)
  • Shimizu, Ikkoh (author)
  • Velázquez, HéctorNational Autonomous University of Mexico (author)
  • Abel, TomStanford University,Stanford Linear Accelerator Center (SLAC) (author)
  • Ceverino, DanielAutonomous University of Madrid (author)
  • Dong, BiliUniversity of California, San Diego (author)
  • Jung, Minyong (author)
  • Quinn, Thomas R.University of Washington (author)
  • Shin, Eun Jin (author)
  • Barrow, Kirk S.S.University of Illinois at Urbana-Champaign (author)
  • Dekel, AvishaiHebrew University of Jerusalem (author)
  • Oh, Boon KiatUniversity of Connecticut (author)
  • Mandelker, NirHebrew University of Jerusalem (author)
  • Teyssier, Romain (author)
  • Hummels, Cameron (author)
  • Maji, Soumily (author)
  • Man, Antonio (author)
  • Mayerhofer, PaulRedwood High School (author)
  • University of California, Santa CruzAstrofysik (creator_code:org_t)
  • the AGORA Collaboration

Related titles

  • In:Astrophysical Journal962:10004-637X

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