Inhomogeneous reionization of the intergalactic medium regulated by radiative and stellar feedbacks
نویسندگان
چکیده
منابع مشابه
Inhomogeneous Reionization Regulated by Radiative and Stellar Feedbacks
We study the inhomogeneous reionization in a critical density CDM universe due to stellar sources, including Population III objects. The spatial distribution of the sources is obtained from high resolution numerical N-body simulations. We calculate the source properties taking into account a self-consistent treatment of both radiative (i.e. ionizing and H2 -photodissociating photons) and stella...
متن کاملThe inhomogeneous reionization of the local intergalactic medium by metal-poor globular clusters
We present detailed radiative transfer simulations of the reionization of the Milky Way by metal-poor globular clusters. We identify potential metal-poor globular cluster candidates within the Aquarius simulation using dark matter halo velocity dispersions. We calculate the local ionization fields via a photon-conserving, three dimensional non-equilibrium chemistry code. The key feature of the ...
متن کاملImprint of Inhomogeneous Hydrogen Reionization on the Temperature Distribution of the Intergalactic Medium
We study the impact of inhomogeneous hydrogen reionization on the thermal evolution of the intergalactic medium (IGM) using hydrodynamic + radiative transfer simulations where reionization is completed either early (z ∼ 9) or late (z ∼ 6). In general, we find that low density gas near large-scale overdensities is ionized and heated earlier than gas in the large-scale, underdense voids. Furtherm...
متن کاملLyman-Break Galaxies and the Reionization of the Intergalactic Medium
Near-infrared observations of Lyman-break galaxies at redshifts z ∼ 3 are beginning to provide constraints on ages, star-formation histories, dust content, metallicities, and stellar masses. At present, uncertainties of more than an order of magnitude are typical for many of these parameters. It is nonetheless interesting to ask what the stellar-population models imply for the existence and lum...
متن کاملHeating the intergalactic medium by radiative decay of neutrinos
Assuming that there exists a species of heavy sterile neutrinos (mν > 1 keV) and their decays can serve as a heating source of the hot gas in galaxy clusters, we study how the observational constraints on cooling flow limit the mass of these sterile neutrinos. We predict a relation among the luminosity, total mass and the redshift of a cluster, and we compare this relation with data from 12 clu...
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: 2000
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2000.03365.x