Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Zaninetti Lorenzo"'
Autor:
Zaninetti Lorenzo
Publikováno v:
Open Astronomy, Vol 27, Iss 1, Pp 335-340 (2018)
The intersections between a spherical shell and the faces of Voronoi polyhedrons are numerically evaluated. The nodes of these intersections are the points that share the same distances from three nuclei. The nodes are assumed to be the places where
Externí odkaz:
https://doaj.org/article/ef5bf4e7d6104e85affbc6a86fdafe29
Autor:
Zaninetti Lorenzo
Publikováno v:
Open Physics, Vol 10, Iss 1, Pp 32-39 (2012)
Externí odkaz:
https://doaj.org/article/9981bee089c84f49b67719d5d714a357
Autor:
Zaninetti Lorenzo, Ferraro Mario
Publikováno v:
Open Physics, Vol 6, Iss 1, Pp 1-6 (2008)
Externí odkaz:
https://doaj.org/article/71c310ab39bb4f0896d2e69c97c1d99c
Autor:
Rossi Michele, Zaninetti Lorenzo
Publikováno v:
Open Physics, Vol 3, Iss 4, Pp 636-659 (2005)
Externí odkaz:
https://doaj.org/article/95ad5baf1c374b779c0da98272a49564
Autor:
Zaninetti, Lorenzo
Publikováno v:
published on The International Journal of Astronomy and Astrophysics 2021,11,370-391
We model the conservation of energy in the framework of the thin layer approximation for two types of interstellar medium (ISM). In particular, we analyse an ISM in the presence of self-gravity and a Gaussian ISM which produces an asymmetry in the ad
Externí odkaz:
http://arxiv.org/abs/2109.01665
Autor:
Zaninetti, Lorenzo
Publikováno v:
Journal of High Energy Physics, Gravitation and Cosmology, (2021), 7, 965-992
We review the distance modulus in twelve different cosmologies: the $\Lambda$CDM model, the wCDM model, the Cardassian model, the flat case, the $\phi$CDM cosmology, the Einstein--De Sitter model, the modified Einstein--De Sitter model, the simple~GR
Externí odkaz:
http://arxiv.org/abs/2107.12140
Energy Conservation in the thin layer approximation: V. The surface brightness in supernova remnants
Autor:
Zaninetti, Lorenzo
Publikováno v:
The International Journal of Astronomy and Astrophysics,2021,11, 252-264
Two new equations of motion for a supernova remnant (SNR) are derived in the framework of energy conservation for the thin-layer approximation. The first one is based on an inverse square law for the surrounding density and the second one on a non-cu
Externí odkaz:
http://arxiv.org/abs/2106.04825
Autor:
Zaninetti, Lorenzo
Publikováno v:
The International Journal of Astronomy and Astrophysics, 2021, 11, 133-149
We demonstrate that certain astrophysical distributions can be modelled with the truncated Weibull distribution, which can lead to some insights: in particular, we report the average value, the $r$th moment, the variance, the median, the mode, the ge
Externí odkaz:
http://arxiv.org/abs/2103.16346
Autor:
Zaninetti, Lorenzo
Publikováno v:
The International Journal of Astronomy and Astrophysics,2021, 11, 37-58
The light curves (LC) for Supernova (SN) can be modeled adopting the conversion of the flux of kinetic energy into radiation. This conversion requires an analytical or a numerical law of motion for the expanding radius of the SN. In the framework of
Externí odkaz:
http://arxiv.org/abs/2102.07386
Autor:
Zaninetti, Lorenzo
Publikováno v:
The International Journal of Astronomy and Astrophysics, 2020, 10, 302-318
Two relativistic distributions which generalizes the Maxwell Boltzman (MB) distribution are analyzed: the relativistic MB and the Maxwell-J{\"u}ttner (MJ) distribution. For the two distributions we derived in terms of special functions the constant o
Externí odkaz:
http://arxiv.org/abs/2012.05797