منابع مشابه
Isospin dependent multi - fragmentation in 112 Sn + 112 Sn and 124 Sn + 124 Sn collisions
Significant differences in the relationships between fragment, neutron, and charged particle multiplicities were found between Sn+Sn and Sn+Sn collisions at 40 MeV/A. In this paper we explore the possibility to explain this phenomenon in the framework of percolation models, and find, that the results are only reproducible in part.
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Percolation models have proven highly successful in the simulation of multifragmentation reactions in the past @1,2#. Within these models, fragmentation is described by first distributing a set of points or sites, each representing a nucleon, on a three-dimensional lattice, which represents the bonds between the sites. In the case of a simple rectangular lattice, each site is connected to six n...
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We report the discovery of the progenitor of the recent type IIn supernova 2008S in the nearby galaxy NGC 6946. Surprisingly, the progenitor was not found in deep, pre-supernova optical images of its host galaxy taken with the Large Binocular Telescope, but only through examination of archival Spitzer mid-IR data. A source coincident with the supernova position is clearly detected in the 4.5, 5...
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SN 2008S erupted in early 2008 in the grand design spiral galaxy NGC 6946. The progenitor was detected by Prieto et al. in Spitzer Space Telescope images taken over the four years prior to the explosion, but was not detected in deep optical images, from which they inferred a self-obscured object with a mass of about 10M . We obtained Spitzer observations of SN 2008S five days after its discover...
متن کاملDiscovery of the Dust-enshrouded Progenitor of Sn 2008s with Spitzer
We report the discovery of the progenitor of the recent type IIn SN 2008S in the nearby galaxy NGC 6946. Surprisingly, it was not found in deep, pre-explosion optical images of its host galaxy taken with the Large Binocular Telescope, but only through examination of archival Spitzer mid-IR data. A source coincident with the SN 2008S position is clearly detected in the 4.5, 5.8, and 8.0 μm IRAC ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2012
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/760/1/20