Elena Sorokina

Type I Superluminous Supernovae as Explosions inside Non-Hydrogen Circumstellar Envelopes

A number of Type I (hydrogenless) superluminous supernova (SLSN) events have been discovered recently. However, their nature remains debatable. One of the most promising ideas is the shock-interaction mechanism, but only simplified semi-analytical models have been applied so far. We simulate light curves for several Type I SLSN (SLSN-I) models enshrouded by dense, non-hydrogen circumstellar envelopes, using a multi-group radiation hydrodynamics code that predicts not only bolometric, but also multicolor light curves. We demonstrate that the bulk of SLSNe-I including those with relatively narrow light curves like SN 2010gx or broad ones like PTF09cnd can be explained by the interaction of the SN ejecta with he CS envelope, though the range of parameters for these models is rather wide. Moderate explosion energy (

Antioxidant systems in tissues of senescence accelerated mice

sim (2 - 4)cdot 10^{51}

Fast evolving pair-instability supernova models: evolution, explosion, light curves

ergs) is sufficient to explain both narrow and broad SLSN-I light curves, but ejected mass and envelope mass differ for those two cases. Only 5 to 10

Hydrogenless superluminous supernova PTF12dam in the model of an explosion inside an extended envelope

M_odot

Modules for Experiments in Stellar Astrophysics (MESA): Convective Boundaries, Element Diffusion, and Massive Star Explosions

of non-hydrogen material is needed to reproduce the light curve of SN 2010gx, while the best model for PTF09cnd is very massive: it contains almost

Pulsational Pair-instability Model for Superluminous Supernova PTF12dam:Interaction and Radioactive Decay

50 M_odot

Assessment of iron toxicity using a luminescent bacterial test with an Escherichia coli recombinant strain

in the CS envelope and only

Light Curves of Type Ia Supernovae as a Probe for an Explosion Model

5 M_odot

Fast and Luminous Transients from the Explosions of Long-lived Massive White Dwarf Merger Remnants

in the ejecta. The CS envelope for each case extends from 10

Ultraviolet Light Curves of Gaia16apd in Superluminous Supernova Models

R_odot