The baryonic mass function of spiral galaxies: clues to galaxy formation
نویسندگان
چکیده
منابع مشابه
The Baryonic Mass Function of Spiral Galaxies: Clues to Galaxy Formation
We compute the baryonic mass function, ψ S (Mb)dlogMb, of disc galaxies using the luminosity functions and baryonic mass-to-light ratios reliable for this goal. On scales from 108M⊙ to 10 11M⊙ this function is featureless, ψ S ∝ M −1/2 b . Outside this mass range ψS is a strong inverse function of Mb. The contributions to the baryon density Ω S b from objects of different mass indicate that spi...
متن کاملThe Baryonic Mass Function of Spiral Galaxies. Clues to Galaxy Formation and to the Nature of Damped Lyman-α Clouds
We compute the baryonic mass function, ψS (Mb), of disk galaxies using the first luminosity functions and baryonic mass-to-light ratios reliable for this goal. On scales from 108M⊙ to 10 11M⊙ such function is featureless, ψ S ∝ M −1/2 b . Outside this mass range ψ S is a strong inverse function of Mb. The contributions to the baryon density ΩSb from objects of different mass indicate that spira...
متن کاملDwarf Galaxies: Important Clues to Galaxy Formation
The smallest dwarf galaxies are the most straight forward objects in which to study star formation processes on a galactic scale. They are typically single cell star forming entities, and as small potentials in orbit around a much larger one they are unlikely to accrete much (if any) extraneous matter during their lifetime (either intergalactic gas, or galaxies) because they will typically lose...
متن کاملOn the galaxy stellar mass function, the mass-metallicity relation, and the implied baryonic mass function
A comparison between published field galaxy stellar mass functions (GSMFs) shows that the cosmic stellar mass density is in the range 4–8 per cent of the baryon density (assuming Ωb = 0.045). There remain significant sources of uncertainty for the dust correction and underlying stellar mass-to-light ratio even assuming a reasonable universal stellar initial mass function. We determine the z < 0...
متن کاملThe Formation of Low-mass Cluster Galaxies and the Universal Initial Galaxy Mass Function
Clusters of galaxies have an observed over-density of low-luminosity systems in comparison to the field, although it is not yet agreed whether this effect is the result of initial galaxy mass functions that vary with environment or galaxy evolutionary effects. In this letter we argue that this over-density is the result of low-mass systems with red colors that are over-populating the faint-end ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1999
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.1999.02913.x