We connect the empirical or ‘occupation’ laws of certain discrete space time-inhomogeneous Markov chains, related to simulated annealing, a novel class ‘stick-breaking’ processes, ‘nonexchangeable’ generalization Dirichlet process used in nonparametric Bayesian statistics. To make this unexpected correspondence, we examine an intermediate ‘clumped’ structure both chains and stick-breaking perha...

Context. B supergiants (BSGs) are evolved stars with effective temperatures between ~10 to ~30 kK. Knowing the properties of these objects is important understand massive star evolution. Located on cool end line-driven wind regime, study their atmospheres can help us physics winds and phenomena such as bi-stability jump. Aims. Despite being well-studied stars, key UV features spectra have so fa...

ABSTRACT Observations of the intracluster medium (ICM) in outskirts Virgo cluster with Suzaku have found gas mass fraction northern direction to be significantly above expected level, indicating that there may a very high level clumping on small scales this direction. Here we explore XMM–Newton data Virgo, dividing it into Voronoi tessellation separate bulk ICM component from clumped component....

We investigate if the gamma ray halo, for which recent evidence has been found in EGRET data, can be explained by neutralino annihilations in a clumpy halo. We find that the measured excess gamma ray flux can be explained through a moderate amount of clumping in the halo. Moreover, the required amount of clumping implies also a measureable excess of antiprotons at low energies, for which there ...

Sequestration of malaria-infected erythrocytes in the peripheral circulation has been associated with the virulence of Plasmodium falciparum. Defining the adhesive phenotypes of infected erythrocytes may therefore help us to understand how severe disease is caused and how to prevent or treat it. We have previously shown that malaria-infected erythrocytes may form apparent autoagglutinates of in...