Galaxy And Mass Assembly (GAMA): stellar mass estimates
نویسندگان
چکیده
منابع مشابه
Galaxy And Mass Assembly (GAMA)
The GAMA survey aims to deliver 250,000 optical spectra (3–7Å resolution) over 250 sq. degrees to spectroscopic limits of rAB < 19.8 and KAB < 17.0 mag. Complementary imaging will be provided by GALEX, VST, UKIRT, VISTA, HERSCHEL and ASKAP to comparable flux levels leading to a definitive multi-wavelength galaxy database. The data will be used to study all aspects of cosmic structures on 1kpc t...
متن کاملGalaxy bimodality versus stellar mass and environment
We analyse a z < 0.1 galaxy sample from the Sloan Digital Sky Survey focusing on the variation of the galaxy colour bimodality with stellar massM and projected neighbour density Σ, and on measurements of the galaxy stellar mass functions. The characteristic mass increases with environmental density from about 1010.6M⊙ to 10 10.9M⊙ (Kroupa IMF, H0 = 70) for Σ in the range 0.1–10Mpc . The galaxy ...
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 galaxy stellar mass–star formation rate relation: Evidence for an evolving stellar initial mass function?
The evolution of the galaxy stellar mass–star formation rate relationship (M∗−SFR) provides key constraints on the stellar mass assembly histories of galaxies. For star-forming galaxies, M∗−SFR is observed to be fairly tight with a slope close to unity from z ∼ 0 → 2, and it evolves downwards roughly independently of M∗. Simulations of galaxy formation reproduce these trends, broadly independen...
متن کاملMass Estimates of Shear Selected Galaxy Clusters
The detection of galaxy clusters has traditionally been done through optical selection methods by detecting overdensities in galaxies throughout an image. However, UC Davis has been pioneering a method of detecting galaxy clusters by their weak lensing signal alone. The aim of this project is to obtain mass estimates of these clusters so that they may be compared with existing optical data to l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2011
ISSN: 0035-8711
DOI: 10.1111/j.1365-2966.2011.19536.x