... In this Section we examine evolution of the number of binary X-ray sources in an arbitrary galaxy. ... However, the problem with its X-ray radiation spectrum remains unsolved because no objects of this type have been observed so far. ... The total X-ray luminosity from different types of objects is traced separately at any instant. First, we calculated the evolution of the X-ray luminosity   assuming a delta-function (instantaneous) shape for the star formation rate. ...

... Authors: Tahina Ramiaramanantsoa et al. arxiv:1403.7288 iPTF 13bvn: Первые указания на двойного прародителя сверхновой типа Ib (iPTF 13bvn: The First Evidence of a Binary Progenitor for a Type Ib Supernova) . Authors: Melina C. Bersten et al. arxiv:1403.6056 Быстрая эволюция восхитительной звезды в туманности Скат (The rapid evolution of the exciting star of the Stingray Nebula) . ... обзор arxiv:1403.0007 История звездообразования во вселенной (Cosmic Star Formation History) . ...

previous next contents elements attributes index . ... Lines and Paragraphs . ... Elements that present text (alignment elements, font elements, style sheets, etc.) are discussed elsewhere in the specification. ... Many of these are typographic elements used in some applications to produce particular visual spacing effects. ... For this reason, authors should use appropriate elements and styles to achieve visual formatting effects that involve white space, rather than space characters. ...