On the Baryonic Contents of Low Mass Galaxies

Abstract

The baryonic Tully-Fisher relation is an important observational constraint on cosmological and galactic models. However, it is critical to keep in mind that in observations only stars, molecular, and atomic gas are counted, while the contribution of the ionized gas is almost universally missed. The ionized gas is, however, expected to be present in the gaseous disks of dwarf galaxies simply because they are exposed to the cosmic ionizing background and to the stellar radiation that manages to escape from the central regions of the galactic disks into their outer layers. Such an expectation is, indeed, born out both by cosmological numerical simulations and by simple analytical models.

replaced with the accepted version

References in corpus (11)

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• A Study in Blue: The Baryon Content of Isolated Low Mass Galaxies
• The low-mass end of the baryonic Tully-Fisher relation
• Quantifying scatter in galaxy formation at the lowest masses
• Going, going, gone dark: Quantifying the scatter in the faintest dwarf galaxies
• The art of modeling CO, [CI], and [CII] in cosmological galaxy formation models
• The ALMA Spectroscopic Survey in the HUDF: the molecular gas content of galaxies and tensions with IllustrisTNG and the Santa Cruz SAM
• Circum-Galactic Gas and the Isotropic Gamma Ray Background
• ALFALFA Discovery of the Nearby Gas-rich Dwarf Galaxy Leo P. V. Neutral Gas Dynamics and Kinematics
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• The Outer Limits of the M31 System: Kinematics of the Dwarf Galaxy Satellites And XXVIII and And XXIX
• The physical drivers of the atomic hydrogen-halo mass relation
• NIHAO III: The constant disc gas mass conspiracy
• Damped Lyα Absorption Systems in Semi-Analytic Models with Multiphase Gas
• The Turn-Down of the Baryonic Tully-Fisher Relation and Changing Baryon Fractions at Low Galaxy Masses
• Dwarf Spheroidal Satellite Formation in a Reionized Local Group
• The Tully-Fisher relations for Hickson Compact Group galaxies
• Testable predictions of outside-in age gradients in dwarf galaxies of all types
• Hubble Constant, Lensing, and Time Delay in Relativistic MOND
• Evolution of dwarf spheroidal satellites in the common surface-density dark halos