FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895723034> ?p ?o ?g. }

• W2895723034 endingPage "A156" @default.
• W2895723034 startingPage "A156" @default.
• W2895723034 abstract "We present JEKYLL, a new code for modelling of supernova (SN) spectra and lightcurves based on Monte-Carlo (MC) techniques for the radiative transfer. The code assumes spherical symmetry, homologous expansion and steady state for the matter, but is otherwise capable of solving the time-dependent radiative transfer problem in non-local-thermodynamic-equilibrium (NLTE). The method used was introduced in a series of papers by Lucy, but the full time-dependent NLTE capabilities of it have never been tested. Here, we have extended the method to include non-thermal excitation and ionization as well as charge-transfer and two-photon processes. Based on earlier work, the non-thermal rates are calculated by solving the Spencer-Fano equation. Using a method previously developed for the SUMO code, macroscopic mixing of the material is taken into account in a statistical sense. To save computational power a diffusion solver is used in the inner region, where the radiation field may be assumed to be thermalized. In addition, a statistical Markov-chain model is used to sample the emission frequency more efficiently, and we introduce a method to control the sampling of the radiation field, which is used to reduce the noise in the radiation field estimators. Except for a description of JEKYLL, we provide comparisons with the ARTIS, SUMO and CMFGEN codes, which show good agreement in the calculated spectra as well as the state of the gas. In particular, the comparison with CMFGEN, which is similar in terms of physics but uses a different technique, shows that the Lucy method does indeed converge in the time-dependent NLTE case. Finally, as an example of the time-dependent NLTE capabilities of JEKYLL, we present a model of a Type IIb SN, taken from a set of models presented and discussed in detail in an accompanying paper. Based on this model we investigate the effects of NLTE, in particular those arising from non-thermal excitation and ionization, and find strong effects even on the bolometric lightcurve. This highlights the need for full NLTE calculations when simulating the spectra and lightcurves of SNe." @default.
• W2895723034 created "2018-10-12" @default.
• W2895723034 creator A5007707651 @default.
• W2895723034 creator A5012703122 @default.
• W2895723034 creator A5034162913 @default.
• W2895723034 creator A5034767646 @default.
• W2895723034 creator A5042425827 @default.
• W2895723034 creator A5052469303 @default.
• W2895723034 date "2018-12-01" @default.
• W2895723034 modified "2023-10-15" @default.
• W2895723034 title "Monte-Carlo methods for NLTE spectral synthesis of supernovae" @default.
• W2895723034 cites W1759300795 @default.
• W2895723034 cites W1845072900 @default.
• W2895723034 cites W1971519595 @default.
• W2895723034 cites W1971536446 @default.
• W2895723034 cites W1990554359 @default.
• W2895723034 cites W2001626873 @default.
• W2895723034 cites W2003957486 @default.
• W2895723034 cites W2005495854 @default.
• W2895723034 cites W2006124034 @default.
• W2895723034 cites W2011741497 @default.
• W2895723034 cites W2012387554 @default.
• W2895723034 cites W2013149592 @default.
• W2895723034 cites W2022472230 @default.
• W2895723034 cites W2025107042 @default.
• W2895723034 cites W2042623734 @default.
• W2895723034 cites W2046367034 @default.
• W2895723034 cites W2046574931 @default.
• W2895723034 cites W2059263042 @default.
• W2895723034 cites W2063665726 @default.
• W2895723034 cites W2073811527 @default.
• W2895723034 cites W2079839973 @default.
• W2895723034 cites W2081511040 @default.
• W2895723034 cites W2111675635 @default.
• W2895723034 cites W2130106221 @default.
• W2895723034 cites W2133212688 @default.
• W2895723034 cites W2152792452 @default.
• W2895723034 cites W2169635046 @default.
• W2895723034 cites W2278684142 @default.
• W2895723034 cites W23818754 @default.
• W2895723034 cites W2595810985 @default.
• W2895723034 cites W2999154694 @default.
• W2895723034 cites W3097976388 @default.
• W2895723034 cites W3099492502 @default.
• W2895723034 cites W3099777800 @default.
• W2895723034 cites W3100261302 @default.
• W2895723034 cites W3101610997 @default.
• W2895723034 cites W3101672888 @default.
• W2895723034 cites W3103843170 @default.
• W2895723034 cites W3105091808 @default.
• W2895723034 cites W3105250370 @default.
• W2895723034 doi "https://doi.org/10.1051/0004-6361/201833043" @default.
• W2895723034 hasPublicationYear "2018" @default.
• W2895723034 type Work @default.
• W2895723034 sameAs 2895723034 @default.
• W2895723034 citedByCount "14" @default.
• W2895723034 countsByYear W28957230342019 @default.
• W2895723034 countsByYear W28957230342020 @default.
• W2895723034 countsByYear W28957230342021 @default.
• W2895723034 countsByYear W28957230342022 @default.
• W2895723034 countsByYear W28957230342023 @default.
• W2895723034 crossrefType "journal-article" @default.
• W2895723034 hasAuthorship W2895723034A5007707651 @default.
• W2895723034 hasAuthorship W2895723034A5012703122 @default.
• W2895723034 hasAuthorship W2895723034A5034162913 @default.
• W2895723034 hasAuthorship W2895723034A5034767646 @default.
• W2895723034 hasAuthorship W2895723034A5042425827 @default.
• W2895723034 hasAuthorship W2895723034A5052469303 @default.
• W2895723034 hasBestOaLocation W28957230341 @default.
• W2895723034 hasConcept C105795698 @default.
• W2895723034 hasConcept C111350023 @default.
• W2895723034 hasConcept C121332964 @default.
• W2895723034 hasConcept C121864883 @default.
• W2895723034 hasConcept C127592171 @default.
• W2895723034 hasConcept C159317903 @default.
• W2895723034 hasConcept C19499675 @default.
• W2895723034 hasConcept C30475298 @default.
• W2895723034 hasConcept C33923547 @default.
• W2895723034 hasConcept C44870925 @default.
• W2895723034 hasConcept C62520636 @default.
• W2895723034 hasConcept C74902906 @default.
• W2895723034 hasConceptScore W2895723034C105795698 @default.
• W2895723034 hasConceptScore W2895723034C111350023 @default.
• W2895723034 hasConceptScore W2895723034C121332964 @default.
• W2895723034 hasConceptScore W2895723034C121864883 @default.
• W2895723034 hasConceptScore W2895723034C127592171 @default.
• W2895723034 hasConceptScore W2895723034C159317903 @default.
• W2895723034 hasConceptScore W2895723034C19499675 @default.
• W2895723034 hasConceptScore W2895723034C30475298 @default.
• W2895723034 hasConceptScore W2895723034C33923547 @default.
• W2895723034 hasConceptScore W2895723034C44870925 @default.
• W2895723034 hasConceptScore W2895723034C62520636 @default.
• W2895723034 hasConceptScore W2895723034C74902906 @default.
• W2895723034 hasLocation W28957230341 @default.
• W2895723034 hasLocation W28957230342 @default.
• W2895723034 hasLocation W28957230343 @default.
• W2895723034 hasLocation W28957230344 @default.
• W2895723034 hasOpenAccess W2895723034 @default.

• next