Search Results - "Röpke, F. K."

The diversity of type Ia supernovae from broken symmetries by Kasen, D, Röpke, F. K, Woosley, S. E

“…Type Ia supernovae result when carbon-oxygen white dwarfs in binary systems accrete mass from companion stars, reach a critical mass and explode. The near…”
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Deflagrations in hybrid CONe white dwarfs: a route to explain the faint Type Iax supernova 2008ha by Kromer, M., Ohlmann, S. T., Pakmor, R., Ruiter, A. J., Hillebrandt, W., Marquardt, K. S., Röpke, F. K., Seitenzahl, I. R., Sim, S. A., Taubenberger, S.

“…Stellar evolution models predict the existence of hybrid white dwarfs (WDs) with a carbon–oxygen core surrounded by an oxygen–neon mantle. Being born with…”
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Extensive HST ultraviolet spectra and multiwavelength observations of SN 2014J in M82 indicate reddening and circumstellar scattering by typical dust by Foley, Ryan J., Fox, O. D., McCully, C., Phillips, M. M., Sand, D. J., Zheng, W., Challis, P., Filippenko, A. V., Folatelli, G., Hillebrandt, W., Hsiao, E. Y., Jha, S. W., Kirshner, R. P., Kromer, M., Marion, G. H., Nelson, M., Pakmor, R., Pignata, G., Röpke, F. K., Seitenzahl, I. R., Silverman, J. M., Skrutskie, M., Stritzinger, M. D.

“…SN 2014J in M82 is the closest detected Type Ia supernova (SN Ia) in at least 28 yr and perhaps in 410 yr. Despite its small distance of 3.3 Mpc, SN 2014J is…”
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2D simulations of the double-detonation model for thermonuclear transients from low-mass carbon-oxygen white dwarfs by Sim, S. A., Fink, M., Kromer, M., Röpke, F. K., Ruiter, A. J., Hillebrandt, W.

“…Thermonuclear explosions may arise in binary star systems in which a carbon-oxygen (CO) white dwarf (WD) accretes helium-rich material from a companion star…”
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Towards an understanding of Type Ia supernovae from a synthesis of theory and observations by Hillebrandt, W., Kromer, M., Röpke, F. K., Ruiter, A. J.

“…Motivated by the fact that calibrated light curves of Type Ia supernovae （SNe Ia） have become a major tool to determine the expansion history of the Universe,…”
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Predicting polarization signatures for double-detonation and delayed-detonation models of Type Ia supernovae by Bulla, M., Sim, S. A., Kromer, M., Seitenzahl, I. R., Fink, M., Ciaraldi-Schoolmann, F., Röpke, F. K., Hillebrandt, W., Pakmor, R., Ruiter, A. J., Taubenberger, S.

“…Calculations of synthetic spectropolarimetry are one means to test multidimensional explosion models for Type Ia supernovae. In a recent paper, we demonstrated…”
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Type Ia supernovae from violent mergers of carbon–oxygen white dwarfs: polarization signatures by Bulla, M, Sim, S A, Pakmor, R, Kromer, M, Taubenberger, S, Ropke, F K, Hillebrandt, W, Seitenzahl, I R

“…The violent merger of two carbon-oxygen white dwarfs has been proposed as a viable progenitor for some Type Ia supernovae. However, it has been argued that the…”
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3D deflagration simulations leaving bound remnants: a model for 2002cx-like Type Ia supernovae by Kromer, M., Fink, M., Stanishev, V., Taubenberger, S., Ciaraldi-Schoolman, F., Pakmor, R., Röpke, F. K., Ruiter, A. J., Seitenzahl, I. R., Sim, S. A., Blanc, G., Elias-Rosa, N., Hillebrandt, W.

“…2002cx-like supernovae are a sub-class of sub-luminous Type Ia supernovae (SNe). Their light curves and spectra are characterized by distinct features that…”
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Synthetic light curves and spectra for three-dimensional delayed-detonation models of Type Ia supernovae by Sim, S. A., Seitenzahl, I. R., Kromer, M., Ciaraldi-Schoolmann, F., Röpke, F. K., Fink, M., Hillebrandt, W., Pakmor, R., Ruiter, A. J., Taubenberger, S.

“…In a companion paper, Seitenzahl et al. have presented a set of three-dimensional delayed detonation models for thermonuclear explosions of…”
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On the brightness distribution of Type Ia supernovae from violent white dwarf mergers by Ruiter, A. J., Sim, S. A., Pakmor, R., Kromer, M., Seitenzahl, I. R., Belczynski, K., Fink, M., Herzog, M., Hillebrandt, W., Röpke, F. K., Taubenberger, S.

“…We investigate the brightness distribution expected for thermonuclear explosions that might result from the ignition of a detonation during the violent merger…”
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An asymmetric explosion as the origin of spectral evolution diversity in type Ia supernovae by Maeda, K., Benetti, S., Stritzinger, M., Röpke, F. K., Folatelli, G., Sollerman, J., Taubenberger, S., Nomoto, K., Leloudas, G., Hamuy, M., Tanaka, M., Mazzali, P. A., Elias-Rosa, N.

“…Type Ia supernovae: maintaining the standard The status of type Ia supernovae as cosmological 'standard candles' relies upon the assumption that they are very…”
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The peculiar Type Ia supernova iPTF14atg: Chandrasekhar-mass explosion or violent merger? by Kromer, M., Fremling, C., Pakmor, R., Taubenberger, S., Amanullah, R., Cenko, S. B., Fransson, C., Goobar, A., Leloudas,  G., Taddia, F., Röpke, F. K., Seitenzahl, I. R., Sim, S. A., Sollerman, J.

“…iPTF14atg, a subluminous peculiar Type Ia supernova (SN Ia) similar to SN 2002es, is the first SN Ia for which a strong UV flash was observed in the early-time…”
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Type Ia supernova diversity: white dwarf central density as a secondary parameter in three-dimensional delayed detonation models by Seitenzahl, I. R., Ciaraldi-Schoolmann, F., Röpke, F. K.

“…Delayed detonations of Chandrasekhar mass white dwarfs (WDs) have been very successful in explaining the spectra, light curves and the width-luminosity…”
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Nucleosynthesis in thermonuclear supernovae with tracers: convergence and variable mass particles by Seitenzahl, I. R., Röpke, F. K., Fink, M., Pakmor, R.

“…Nucleosynthetic yield predictions for multidimensional simulations of thermonuclear supernovae generally rely on the tracer particle method to obtain isotopic…”
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Monte Carlo radiation hydrodynamics: methods, tests and application to Type Ia supernova ejecta by Noebauer, U. M., Sim, S. A., Kromer, M., Röpke, F. K., Hillebrandt, W.

“…Abstract In astrophysical systems, radiation-matter interactions are important in transferring energy and momentum between the radiation field and the…”
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Light curves for off-centre ignition models of Type Ia supernovae by Sim, S. A., Sauer, D. N., Röpke, F. K., Hillebrandt, W.

“…Motivated by recent models involving off-centre ignition of Type Ia supernova explosions, we undertake three-dimensional time-dependent radiation transport…”
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Long-term evolution of a magnetic massive merger product by Schneider, F R N, Ohlmann, S T, Podsiadlowski, Ph, Röpke, F K, Balbus, S A, Pakmor, R

“…ABSTRACT About 10 per cent of stars more massive than ${\approx}1.5\, {\mathrm{M}}_{\odot }$ have strong, large-scale surface magnetic fields and are being…”
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Type Ia Supernovae as Sites of the p-process: Two-dimensional Models Coupled to Nucleosynthesis by Travaglio, C, Röpke, F. K, Gallino, R, Hillebrandt, W

“…Beyond Fe, there is a class of 35 proton-rich nuclides, between 74Se and 196Hg, called p-nuclei. They are bypassed by the s and r neutron capture processes and…”
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Monte Carlo radiative transfer for the nebular phase of Type Ia supernovae by Shingles, L J, Sim, S A, Kromer, M, Maguire, K, Bulla, M, Collins, C, Ballance, C P, Michel, A S, Ramsbottom, C A, Röpke, F K, Seitenzahl, I R, Tyndall, N B

“…ABSTRACT We extend the range of validity of the artis 3D radiative transfer code up to hundreds of days after explosion, when Type Ia supernovae (SNe Ia) are…”
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On the fate of the secondary white dwarf in double-degenerate double-detonation Type Ia supernovae by Pakmor, R, Callan, F P, Collins, C E, de Mink, S E, Holas, A, Kerzendorf, W E, Kromer, M, Neunteufel, P G, O’Brien, John T, Röpke, F K, Ruiter, A J, Seitenzahl, I R, Shingles, Luke J, Sim, S A, Taubenberger, S

“…ABSTRACT The progenitor systems and explosion mechanism of Type Ia supernovae are still unknown. Currently favoured progenitors include double-degenerate…”
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