Matches in SemOpenAlex for { <https://semopenalex.org/work/W2499559271> ?p ?o ?g. }
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- W2499559271 abstract "Nebular-phase observations and spectral models of Type Ic superluminous supernovae (SLSNe) are presented. LSQ14an and SN 2015bn both display late-time spectra similar to galaxy-subtracted spectra of SN 2007bi, and the class shows strong similarity with broad-lined SNe Ic such as SN 1998bw. Near-infrared observations of SN 2015bn show a strong Ca ii triplet, O i 9263, O i 1.13 μm, and Mg i 1.50 μm, but no distinct He, Si, or S emission. The high Ca ii NIR/[Ca ii] 7291, 7323 ratio of ∼2 indicates a high electron density of cm−3. Spectral models of oxygen-zone emission are investigated to put constraints on the emitting region. Models require M⊙ to produce enough [O i] 6300, 6364 luminosity, irrespective of the powering situation and the density. The high oxygen-zone mass, supported by high estimated magnesium masses, points to explosions of massive CO cores, requiring . Collisions of pair-instability pulsations do not provide enough mass to account for the emission. [O ii] and [O iii] lines emerge naturally in many models, which strengthens the identification of broad [O ii] 7320, 7330, [O iii] 4363, and [O iii] 4959, 5007 in some spectra. A small filling factor for the O/Mg zone is needed to produce enough luminosity in Mg i] 4571, Mg i 1.504 μm, and O i recombination lines, which shows that the ejecta is clumped. We review the constraints from the nebular spectral modeling in the context of the various scenarios proposed for SLSNe." @default.
- W2499559271 created "2016-08-23" @default.
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- W2499559271 date "2017-01-16" @default.
- W2499559271 modified "2023-10-12" @default.
- W2499559271 title "LONG-DURATION SUPERLUMINOUS SUPERNOVAE AT LATE TIMES" @default.
- W2499559271 cites W1558490252 @default.
- W2499559271 cites W1802488628 @default.
- W2499559271 cites W1922401496 @default.
- W2499559271 cites W1930280347 @default.
- W2499559271 cites W1943306457 @default.
- W2499559271 cites W1946870327 @default.
- W2499559271 cites W1964655925 @default.
- W2499559271 cites W1967041783 @default.
- W2499559271 cites W1970511825 @default.
- W2499559271 cites W1971536446 @default.
- W2499559271 cites W1973361205 @default.
- W2499559271 cites W1976714811 @default.
- W2499559271 cites W1977925093 @default.
- W2499559271 cites W1982779444 @default.
- W2499559271 cites W1983471014 @default.
- W2499559271 cites W1984626645 @default.
- W2499559271 cites W1986781091 @default.
- W2499559271 cites W1992420274 @default.
- W2499559271 cites W1995619964 @default.
- W2499559271 cites W2012387554 @default.
- W2499559271 cites W2013149592 @default.
- W2499559271 cites W2016924012 @default.
- W2499559271 cites W2022381789 @default.
- W2499559271 cites W2026286726 @default.
- W2499559271 cites W2027244628 @default.
- W2499559271 cites W2028466334 @default.
- W2499559271 cites W2042465048 @default.
- W2499559271 cites W2043993903 @default.
- W2499559271 cites W2045595439 @default.
- W2499559271 cites W2047135448 @default.
- W2499559271 cites W2051510476 @default.
- W2499559271 cites W2053907124 @default.
- W2499559271 cites W2054185545 @default.
- W2499559271 cites W2060288828 @default.
- W2499559271 cites W2064057617 @default.
- W2499559271 cites W2064306053 @default.
- W2499559271 cites W2067073045 @default.
- W2499559271 cites W2075304334 @default.
- W2499559271 cites W2079293916 @default.
- W2499559271 cites W2079839973 @default.
- W2499559271 cites W2081437458 @default.
- W2499559271 cites W2089249153 @default.
- W2499559271 cites W2092165725 @default.
- W2499559271 cites W2092748333 @default.
- W2499559271 cites W2095319512 @default.
- W2499559271 cites W2104085121 @default.
- W2499559271 cites W2104812912 @default.
- W2499559271 cites W2112804737 @default.
- W2499559271 cites W2114650648 @default.
- W2499559271 cites W2116344101 @default.
- W2499559271 cites W2124391879 @default.
- W2499559271 cites W2131213682 @default.
- W2499559271 cites W2131661760 @default.
- W2499559271 cites W2140872038 @default.
- W2499559271 cites W2149082495 @default.
- W2499559271 cites W2152774008 @default.
- W2499559271 cites W2153219938 @default.
- W2499559271 cites W2159693906 @default.
- W2499559271 cites W2160215169 @default.
- W2499559271 cites W2163812193 @default.
- W2499559271 cites W2167635287 @default.
- W2499559271 cites W2169801287 @default.
- W2499559271 cites W2183061385 @default.
- W2499559271 cites W2187412646 @default.
- W2499559271 cites W2192492825 @default.
- W2499559271 cites W2277022595 @default.
- W2499559271 cites W2291851638 @default.
- W2499559271 cites W2473440799 @default.
- W2499559271 cites W2484525193 @default.
- W2499559271 cites W2951513330 @default.
- W2499559271 cites W3037031488 @default.
- W2499559271 cites W3098412967 @default.
- W2499559271 cites W3099274523 @default.
- W2499559271 cites W3099697100 @default.
- W2499559271 cites W3099752103 @default.
- W2499559271 cites W3099777800 @default.
- W2499559271 cites W3100175829 @default.