A common envelope jets supernova (CEJSN) impostor scenario for fast blue optical transients
Sign Up to like & getrecommendations! Published in 2022 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/ac5b40
Abstract: I propose a new scenario, the \textit{polar common envelope jets supernova (CEJSN) impostor} scenario, to account for AT2018cow-like fast blue optical transients (FBOTs). The polar CEJSN impostor scenario evolves through four main phases. (1) A… read more here.
Keywords: cejsn impostor; common envelope; envelope jets; scenario ... See more keywords
Properties of the post in-spiral common envelope ejecta II: dust formation
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2169
Abstract: We study the formation of dust in the expanding gas ejected as a result of a common envelope binary interaction. In our novel approach, we apply the dust formation model of Nozawa et al. to… read more here.
Keywords: formation; common envelope; dust formation; ejecta ... See more keywords
Inferred time-scales for common envelope ejection using wide astrometric companions
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa833
Abstract: Evolution of close binaries often proceeds through the common envelope stage. The physics of the envelope ejection (CEE) is not yet understood, and several mechanisms were suggested to be involved. These could give rise to… read more here.
Keywords: ultra wide; common envelope; envelope ejection; mass loss ... See more keywords
The impact of recombination energy on simulations of the common-envelope binary interaction
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa937
Abstract: During the common-envelope binary interaction, the expanding layers of the gaseous common envelope recombine and the resulting recombination energy has been suggested as a contributing factor to the ejection of the envelope. In this paper,… read more here.
Keywords: recombination energy; common envelope; envelope binary; energy ... See more keywords
The post-common-envelope binary central star of the planetary nebula Ou 5: a doubly-eclipsing post-red-giant-branch system
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab3736
Abstract: We present a detailed study of the stellar and orbital parameters of the post-common envelope binary central star of the planetary nebula Ou 5. Low-resolution spectra obtained during the primary eclipse – to our knowledge the… read more here.
Keywords: common envelope; central star; star; post ... See more keywords
A common-envelope wind model for Type Ia supernovae – I. Binary evolution and birth rate
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1137
Abstract: The single-degenerate (SD) model is one of the principal models for the progenitors of type Ia supernovae (SNe Ia), but some of the predictions in the most widely studied version of the SD model, i.e.… read more here.
Keywords: common envelope; cew model; type supernovae; otw model ... See more keywords
Genesis of magnetic fields in isolated white dwarfs
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1150
Abstract: A dynamo mechanism driven by differential rotation when stars merge has been proposed to explain the presence of strong fields in certain classes of magnetic stars. In the case of the high field magnetic white… read more here.
Keywords: common envelope; white dwarfs; field; white dwarf ... See more keywords
Post-common envelope binary stars, radiative levitation, and blue large-amplitude pulsators
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2545
Abstract: Following the discovery of blue large-amplitude pulsators (BLAPs), single star evolu- tion models of post red giant branch stars that have undergone a common envelope (CE) ejection in the form of a high mass loss… read more here.
Keywords: common envelope; blue large; levitation; amplitude pulsators ... See more keywords
Common envelope evolution on a moving mesh
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1219
Abstract: We outline the methodology of simulating common envelope evolution (CEE) with the moving-mesh code manga. We extend manga to include multiple time-steps. This provides substantial speedups for problems with large dynamic range. We describe the… read more here.
Keywords: common envelope; envelope; red giant; envelope evolution ... See more keywords
Companion-launched jets and their effect on the dynamics of common envelope interaction simulations
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz2013
Abstract: We conduct three-dimensional hydrodynamic simulations of the common envelope binary interaction and show that if the companion were to launch jets while interacting with the giant primary star’s envelope, the jets would remove a substantial… read more here.
Keywords: common envelope; companion; include jets; core companion ... See more keywords
Energy budget and core-envelope motion in common envelope evolution
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz887
Abstract: We analyze a 3D hydrodynamic simulation of common envelope evolution to understand how energy is transferred between various forms and whether theory and simulation are mutually consistent given the setup. Virtually all of the envelope… read more here.
Keywords: common envelope; energy; envelope; envelope evolution ... See more keywords