Galaxy formation in pre-processed dark haloes
نویسندگان
چکیده
منابع مشابه
Galaxy formation in pre - processed dark halos
Recent N -body simulations show that the formation of a present-day, galaxy sized dark matter halo in the cold dark matter cosmogony in general consists of an early fast collapse phase, during which the potential associated with a halo is established, followed by a slow accretion phase, during which mass is added rather gently in the outer region. In this paper, we consider the implication of s...
متن کاملSmall-scale Substructure in Dark Matter Haloes: Where Does Galaxy Formation Come to an End?
Models of structure formation based on cold dark matter predict that most of the small dark matter haloes that first formed at high redshift would have merged into larger systems by the present epoch. Substructure in present-day haloes preserves the remains of these ancient systems, providing the only direct information we may ever have about the low-mass end of the power spectrum. I describe s...
متن کاملGalaxy Occupation Statistics of Dark Matter Haloes: Observational Results
We study the occupation statistics of galaxies in dark matter haloes using galaxy groups identified from the 2-degree Field Galaxy Redshift Survey with the halo-based group finder of Yang et al. (2004b). The occupation distribution is considered separately for early and late type galaxies, as well as in terms of central and satellite galaxies. The mean luminosity of the central galaxies scales ...
متن کاملEvidence of Turbulence-like Universality on the Formation of Galaxy-sized Dark Matter Haloes
Context. Although the theoretical understanding of the nonlinear gravitational clustering has greatly advanced in the last decades, in particular by the outstanding improvement on numerical N-body simulations, the physics behind this process is not fully elucidated. Aims. The main goal of this work is the study of the possibility of a turbulent-like physical process in the formation of structur...
متن کاملGalaxy Formation and Dark Matter
The challenge of dark matter may be addressed in two ways; by studying the confrontation of structure formation with observation and by direct and indirect searches. In this review, I will focus on those aspects of dark matter that are relevant for understanding galaxy formation, and describe the outlook for detecting the most elusive component, non-baryonic dark matter. Galaxy formation theory...
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: 2004
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2004.08114.x