Stellar Statistics
نویسندگان
چکیده
منابع مشابه
Power law statistics and stellar rotational velocities in the Pleiades
In this paper we will show that, the non-Gaussian statistics framework based on the Kaniadakis statistics is more appropriate to fit the observed distributions of projected rotational velocity measurements of stars in the Pleiades open cluster. To this end, we compare the results from the κ and q-distributions with the Maxwellian. Copyright c © EPLA, 2008 Introduction. – Some restrictions to th...
متن کاملNon-extensive statistics and the stellar polytrope index
Polytropic distribution functions provide the simplest models for self-gravitating stellar systems [1]. These models are characterized by an equation of the state of the form p = Kρ , where K and γ are constants. The polytropic index n is defined by the following expression: γ = 1 + 1 n which in the limit n → ∞ or, equivalently, γ = 1 results in an equation of state identical to the one of an i...
متن کاملNonextensive statistics in stellar plasma and solar neutrinos
Nonextensive and quantum uncertainty effects (related to the quasiparticles composing the stellar core) have strong influence on the nuclear rates and, of course, affect solar neutrino fluxes. Both effects do coexist and are due to the frequent collisions among the ions. The weakly nonextensive nature of the solar core is confirmed. The range of predictions for the neutrino fluxes is enlarged a...
متن کاملNon - gaussian statistics and stellar rotational velocities of main sequence field stars
In this letter we study the observed distributions of rotational velocity in a sample of more than 16,000 nearby F and G dwarf stars, magnitude complete and presenting high precision V sini measurements. We show that the velocity distributions cannot be fitted by a maxwellian. On the other hand, an analysis based on both Tsallis and Kaniadakis power-law statistics is by far the most appropriate...
متن کاملAvalanche Statistics Identify Intrinsic Stellar Processes near Criticality in KIC 8462852.
The star KIC8462852 (Tabby's star) has shown anomalous drops in light flux. We perform a statistical analysis of the more numerous smaller dimming events by using methods found useful for avalanches in ferromagnetism and plastic flow. Scaling exponents for avalanche statistics and temporal profiles of the flux during the dimming events are close to mean field predictions. Scaling collapses sugg...
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: Nature
سال: 1965
ISSN: 0028-0836,1476-4687
DOI: 10.1038/205736a0