Mass‐Temperature Relation of Galaxy Clusters: Implications from the Observed Luminosity‐Temperature Relation and X‐Ray Temperature Function
نویسندگان
چکیده
منابع مشابه
Mass-temperature relation of galaxy clusters: implications from the observed luminosity-temperature relation and X-ray temperature function
We derive constraints on the mass-temperature relation of galaxy clusters from their observed luminosity-temperature relation and X-ray temperature function. Adopting the isothermal gas in hydrostatic equilibrium embedded in the universal density profile of dark matter halos, we compute the X-ray luminosity for clusters as a function of their hosting halo mass. We find that in order to reproduc...
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Cluster abundance normalization from observed mass-temperature relation
Abundance of rich clusters in local universe is currently believed to provide the most robust normalization of power spectrum at a scale of 10 Mpc. This normalization depends very sensitively on the calibration between virial mass M and temperature T , which is usually taken from simulations. Uncertainties in the modelling, such as gas cooling and heating, can lead to a factor of two variations...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/367955