Recent observations by XMM-Newton detected rotational pulsations in the total brightness and spectrum of several neutron stars. To properly interpret the data, accurate modeling of neutron star emission is necessary. Detailed analysis of the shape and strength of the rotational variations allows a measurement of the surface composition and magnetic field, as well as constrains the nuclear equat...

It has come to the attention of the authors that in two of their recent Reports, “Recognition of p63 by the E3 ligase ITCH: Effect of an ectodermal dysplasia mutant” and “Recognition mechanism of p63 by the E3 ligase Itch: Novel strategy in the study and inhibition of this interaction,” an important source of funding was omitted. Both Reports were supported by Telethon Grant GM GGP09133. Correc...

RX J1856.5-3754 has been proposed as a strange star candidate due to its very small apparent radius measured from its X-ray thermal spectrum. However, its optical emission requires a much larger radius and thus most of the stellar surface must be cold and undetectable in X-rays. In the case the star is a neutron star such a surface temperature distribution can be explained by the presence of a ...

RX J1856.5−3754 is the X-ray brightest among the nearby isolated neutron stars. Its X-ray spectrum is thermal, and is reproduced remarkably well by a black-body, but its interpretation has remained puzzling. One reason is that the source did not exhibit pulsations, and hence a magnetic field strength—vital input to atmosphere models—could not be estimated. Recently, however, very weak pulsation...

The paper studies the effective social factors influencing on the satisfaction in Shirvan. The sample size was chosen 265 from 3754 students in Shirvan Islamic Azad University. The results show that the satisfaction rate of students is 2.8 out of 5 and it is on average point. It also shows that out of 16 hypothesis, 6 ones concerning social factors were rejected  and the hypothesis were accepte...

Abstract Photon–axion mixing can create observable signatures in the thermal spectra of isolated, cooling neutron stars. Their shape depends on polarization properties radiation, which, turn, are determined by structure stellar outermost layers. Here we investigate effect spectrum and polarimetric observables, fraction angle, using realistic models surface emission. We focus RX J1856.5–3754, on...