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Re-examining the X-Ray versus Spin-Down Luminosity Correlation of Rotation Powered Pulsars
Andrea Possenti, Rossella Cerutti, Monica Colpi +1
The empirical relation between the X-ray luminosity (in the 2-10 keV band) and the rate of spin-down energy loss of a sample of 37 pulsars is re-examined considering recent data fr…
The transient X-ray pulsar 4U 0115+63 from quiescence to outburst through the centrifugal transition
S. Campana, F. Gastaldello, L. Stella +5
We report on a BeppoSAX observation of the transient X-ray pulsar 4U 0115+63 close to periastron. This led to the discovery of a dramatic luminosity variation from ~2x10^34 erg/s t…
Radiation from the first forming stars
Emanuele Ripamonti, Francesco Haardt, Andrea Ferrara +1
The evolution of radiation emitted during the dynamical collapse of metal-free protostellar clouds is investigated within a spherically symmetric hydrodynamical scheme that include…
The Metamorphosis of Tidally Stirred Dwarf Galaxies
Lucio Mayer, Fabio Governato, Monica Colpi +5
We present results from high-resolution N-Body/SPH simulations of rotationally supported dwarf irregular galaxies moving on bound orbits in the massive dark matter halo of the Milk…
Neutron star cooling in transiently accreting low mass binaries: a new tool for probing nuclear matter
Andrea Possenti, Monica Colpi, Dany Page +1
We explore, using an exact cooling code, the thermal evolution of a neutron star undergoing episodes of intense accretion, alternated by long periods of quiescence (e.g. Soft X-Ray…