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pro vyhledávání: '"Madej J"'
In this paper, we discuss the influence of the gravitational darkening effect on the emergent spectrum of a fast-rotating, flattened neutron star. Model atmosphere codes always calculate spectra of emergent intensities and fluxes emitted from the uni
Externí odkaz:
http://arxiv.org/abs/2201.05428
Magnetized stars exhibit periodic variations of their longitudinal global magnetic fields, $B_e$, owing to rotation. Here, we present the second catalog of averaged stellar magnetic rotational phase curves and their parameters derived from a compilat
Externí odkaz:
http://arxiv.org/abs/2004.14099
In this paper we show that X-ray spectral observations of the ATHENA mission, which is planned to launch in 2031, can constrain the equation of state of superdense matter. We use our well-constrained continuum fitting method for mass and radius deter
Externí odkaz:
http://arxiv.org/abs/1912.01608
Akademický článek
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Akademický článek
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Autor:
Hubrig, S., Jarvinen, S. P., Madej, J., Bychkov, V. D., Ilyin, I., Schöller, M., Bychkova, L. V.
Since its discovery more than half a century ago Przybylski's star (HD101065) continues to excite the astronomical community by the unusual nature of its spectrum, exhibiting exotic element abundances. This star was also the first magnetic chemically
Externí odkaz:
http://arxiv.org/abs/1804.07260
Autor:
Vincent, F. H., Bejger, M., Rozanska, A., Straub, O., Paumard, T., Fortin, M., Madej, J., Majczyna, A., Gourgoulhon, E., Haensel, P., Zdunik, L., Beldycki, B.
Thermal dominated X-ray spectra of neutron stars in quiescent transient X-ray binaries and neutron stars that undergo thermonuclear bursts are sensitive to mass and radius. The mass-radius relation of neutron stars depends on the equation of state th
Externí odkaz:
http://arxiv.org/abs/1711.02414
Global magnetic fields of flare stars can evolve rapidly, in time scale of hundreds or dozens of days. We believe, that such changes result from rapid superposition of local magnetic fields generated by differential rotation of those stars. We discus
Externí odkaz:
http://arxiv.org/abs/1702.05606
Apparent variability of the longitudinal magnetic fields in most stars is caused by rotation, which quantitavely changes projection of the magnetic field configuration on the line of sight. This is a purely geometrical effect and is not related to po
Externí odkaz:
http://arxiv.org/abs/1611.06998
The second version of the catalog contains information about 275 stars of different types. During the time that has elapsed since the creation of the first catalog, situation fundamentally changed primarily due to the significant increase of accuracy
Externí odkaz:
http://arxiv.org/abs/1611.07003