Mapping Dark Matter with Cosmic Magnification
نویسندگان
چکیده
منابع مشابه
Cosmic strings with interacting hot dark matter
We compute the linear power spectrum of cosmic string sedeed fluctuations in the context of neutrinos with a strong self-interaction and show that it is very similar to that obtained in the context of ‘normal’ neutrinos. We compare our results with observational data and show that for any value of the cosmological parameters h and Ω0 the interacting hot dark matter power spectrum requires a lar...
متن کاملCosmic Magnification
I present the current status of the cosmic magnification produced by systematic amplification of background sources by large-scale structures. After introducing its principle, I focus on its interests for cosmology and underline its complementary aspect to cosmic shear and galaxy auto-correlations. I finally discuss recent investigations using higher-order statistics.
متن کاملInhomogeneous baryogenesis , cosmic antimatter , and dark matter
A model of inhomogeneous baryogenesis based on the Affleck and Dine mechanism is described. A simple coupling of the scalar baryon field to the inflaton allows for formation of astronomically significant bubbles with a large baryon (or antibaryon) asymmetry. During the farther evolution these domains form compact stellar-like objects, or lower density clouds, or primordial black holes of differ...
متن کاملDuality, dark matter and the cosmic clock
How do we know that the CMB photons originate in the early universe? We discuss the possibility of their origin from mirror neutrino annihilation and suggest an experimental test of this hypothesis. This essay was not written for any competition on the subject of gravity. Despite its remarkable success, it should be noted that the standard ΛCDM cosmology is largely an empirical affair, with no ...
متن کاملDark matter production from cosmic necklaces
Cosmic strings have gained a great interest, since they are formed in a large class of brane inflationary models. The most interesting story is that cosmic strings in brane models are distinguished in future cosmological observations. If the strings in brane models are branes or superstrings that can move along compactified space, and also if there are degenerated vacua along the compactified s...
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: Physical Review Letters
سال: 2005
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.95.241302