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El-Badry K, Bradford J, Quataert E, et al. Gas kinematics in FIRE simulated galaxies compared to spatially unresolved HI observations. Mon Not R Astron Soc. 2018;477(2):1536-1548doi: 10.1093/mnras/sty730.
El-Badry, K., Bradford, J., Quataert, E., Geha, M., Boylan-Kolchin, M., Weisz, D. R., Wetzel, A., Hopkins, P. F., Chan, T. K., Fitts, A., Kereš, D., & Faucher-Giguére, C. A. (2018). Gas kinematics in FIRE simulated galaxies compared to spatially unresolved HI observations. Monthly notices of the Royal Astronomical Society, 477(2), 1536-1548. https://doi.org/10.1093/mnras/sty730
El-Badry, Kareem, et al. "Gas kinematics in FIRE simulated galaxies compared to spatially unresolved HI observations." Monthly notices of the Royal Astronomical Society vol. 477,2 (2018): 1536-1548. doi: https://doi.org/10.1093/mnras/sty730
El-Badry K, Bradford J, Quataert E, Geha M, Boylan-Kolchin M, Weisz DR, Wetzel A, Hopkins PF, Chan TK, Fitts A, Kereš D, Faucher-Giguére CA. Gas kinematics in FIRE simulated galaxies compared to spatially unresolved HI observations. Mon Not R Astron Soc. 2018 Jun;477(2):1536-1548. doi: 10.1093/mnras/sty730. Epub 2018 Mar 24. PMID: 30713356; PMCID: PMC6350816.
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Mon Not R Astron Soc. 2018 Jun;477(2):1536-1548. doi: 10.1093/mnras/sty730. Epub 2018 Mar 24.

Gas kinematics in FIRE simulated galaxies compared to spatially unresolved HI observations.

Monthly notices of the Royal Astronomical Society

Kareem El-Badry, Jeremy Bradford, Eliot Quataert, Marla Geha, Michael Boylan-Kolchin, Daniel R Weisz, Andrew Wetzel, Philip F Hopkins, T K Chan, Alex Fitts, Dušan Kereš, Claude-André Faucher-Giguére

Affiliations

  1. Department of Astronomy and Theoretical Astrophysics Center, University of California Berkeley, Berkeley, CA 94720, USA.
  2. Department of Astronomy, Yale University, New Haven, CT 06520, USA.
  3. Department of Astronomy, The University of Texas at Austin, Austin, TX 78712, USA.
  4. Department of Physics, University of California, Davis, CA 95616, USA.
  5. TAPIR, Mailcode 350-17, California Institute of Technology, Pasadena, CA 91125, USA.
  6. Department of Physics, Center for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, CA 92093, USA.
  7. Department of Physics and Astronomy and CIERA, Northwestern University, Evanston, IL 60208, USA.

PMID: 30713356 PMCID: PMC6350816 DOI: 10.1093/mnras/sty730

Abstract

The shape of a galaxy's spatially unresolved, globally integrated 21-cm emission line depends on its internal gas kinematics: galaxies with rotationally supported gas discs produce double-horned profiles with steep wings, while galaxies with dispersion-supported gas produce Gaussian-like profiles with sloped wings. Using mock observations of simulated galaxies from the FIRE project, we show that one can therefore constrain a galaxy's gas kinematics from its unresolved 21-cm line profile. In particular, we find that the kurtosis of the 21-cm line increases with decreasing

Keywords: dwarf – galaxies; dynamics; galaxies; irregular – galaxies; kinematics

References

  1. Astrophys J. 2000 Apr 20;533(2):L99-L102 - PubMed
  2. Nature. 2014 Feb 13;506(7487):171-8 - PubMed

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