The mutual interaction between Population III stars and self-annihilating dark matter
نویسندگان
چکیده
منابع مشابه
Annihilating Dark Matter and the Galactic Positron Excess
The possibility that the Galactic dark matter is composed of neutralinos that are just above half the Z mass is examined, in the context of the Galactic positron excess. In particular, we check if the anomalous bump in the cosmic ray positron to electron ratio at 10 GeV can be explained with the “decay” of virtual Z bosons produced when the neutralinos annihilate. We find that the low energy be...
متن کاملThe Structure of Dark Matter Halos in an Annihilating Dark Matter Model
The inability of standard non-interacting cold dark matter (CDM) to account for the small scale structure of individual galaxies has led to the suggestion that the dark matter may undergo elastic and/or inelastic scattering. We simulate the evolution of an isolated dark matter halo which undergoes both scattering and annihilation. Annihilations produce a core that grows with time due to adiabat...
متن کاملStrong CMB Constraint On P -Wave Annihilating Dark Matter
We consider a dark sector consisting of dark matter that is a Dirac fermion and a scalar mediator. This model has been extensively studied in the past. If the scalar couples to the dark matter in a parity conserving manner then dark matter annihilation to two mediators is dominated by the P -wave channel and hence is suppressed at very low momentum. The indirect detection constraint from the an...
متن کاملthe relationship between academic self-concept and academic achievement in english and general subjects of the students of high school
according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...
Dark Matter Densities during the Formation of the First Stars and in Dark Stars
The first stars in the universe form inside ∼ 106M⊙ dark matter (DM) haloes whose initial density profiles are laid down by gravitational collapse in hierarchical structure formation scenarios. During the formation of the first stars in the universe, the baryonic infall compresses the dark matter further. The resultant dark matter density is presented here, using an algorithm originally develop...
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: 2014
ISSN: 1365-2966,0035-8711
DOI: 10.1093/mnras/stu621