Dense DM clumps seeded by cosmic string loops and DM annihilation
نویسندگان
چکیده
منابع مشابه
PBH and DM from cosmic necklaces
Cosmic strings in the brane Universe have recently gained a great interest. I think the most interesting story is that future cosmological observations distinguish them from the conventional cosmic strings. If the strings are the higher-dimensional objects that can (at least initially) move along the compactified space, and finally settle down to (quasi-)degenerated vacua in the compactified sp...
متن کاملCosmic string-seeded structure formation
We describe the results of high-resolution numerical simulations of string-induced structure formation in open universes and those with a non-zero cosmological constant. For models with Γ = Ωh = 0.1–0.2 and a cold dark matter background, we show that the linear density fluctuation power spectrum has both an amplitude at 8hMpc, σ8, and an overall shape which are consistent within uncertainties w...
متن کاملPlatelet mitochondrial dysfunction of DM rats and DM patients.
It is known that cardiovascular complications plays important roles in the development of diabetes mellitus (DM) and platelet dysfunction is one of the key reasons which led to microangiopathy. This study was designed to investigate the mitochondria function changes of platelet in DM rats and DM patients. The results showed that the platelets viability, platelet adenosine triphosphate (ATP) con...
متن کاملReionization from cosmic string loops
Abstract Loops formed from a cosmic string network at early times would act as seeds for early formation of halos, which would form galaxies and lead to early reionization. With reasonable guesses about astrophysical and string parameters, the cosmic string scale Gμ must be no more than about 3 × 10 to avoid conflict with the reionization redshift found by WMAP. The bound is much stronger for s...
متن کاملCosmic string loops and large-scale structure
We investigate the contribution made by small loops from a cosmic string network as seeds for large-scale structure formation. We show that cosmic string loops are highly correlated with the long-string network on large scales and therefore contribute significantly to the power spectrum of density perturbations if the average loop lifetime is comparable to or above one Hubble time. This effect ...
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: Journal of Cosmology and Astroparticle Physics
سال: 2011
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2011/12/007