Results 81 to 90 of about 127,486 (216)

Delay-time distribution of core-collapse supernovae with late events resulting from binary interaction [PDF]

, 2017
Most massive stars, the progenitors of core-collapse supernovae, are in close binary systems and may interact with their companion through mass transfer or merging.
E. Zapartas, S. D. Mink, R. Izzard, Sung-Chul Yoon, C. Badenes, Y. Götberg, A. D. Koter, A. D. Koter, C. Neijssel, M. Renzo, A. Schootemeijer, T. Shrotriya   +11 more
semanticscholar   +1 more source

Conversion Between 2‐ and 3‐Dimensional Halogen‐Bonded Networks Formed From a Single N‐Oxide/Iodoalkyne Building Block

Chemistry – A European Journal, EarlyView.
Open halogen‐bonded networks have been prepared from building blocks that incorporate both iodoalkyne halogen bond donors and a pyridine‐N‐oxide halogen bond acceptor. An initially‐formed 3D network containing dioxane in its channels undergoes an unprecedented transition to a 2D material when crystals are exposed to diethyl ether.
Jordan N. Smith, Courtney Ennis, Huan V. Doan, Valeska P. Ting, Nicholas G. White   +4 more
wiley   +1 more source

The Physics of Core-Collapse Supernovae: Explosion Mechanism and Explosive Nucleosynthesis

Universe
Recent developments in multi-dimensional simulations of core-collapse supernovae have considerably improved our understanding of this complex phenomenon.
Luca Boccioli, Lorenzo Roberti
doaj   +1 more source

SNe Ia Redshift in a Nonadiabatic Universe

Universe, 2018
By relaxing the constraint of adiabatic universe used in most cosmological models, we have shown that the new approach provides a better fit to the supernovae Ia redshift data with a single parameter, the Hubble constant H0, than the standard ΛCDM
Rajendra P. Gupta
doaj   +1 more source

The Early Evolution of Primordial Pair-Instability Supernovae

, 2010
The observational signatures of the first cosmic explosions and their chemical imprint on second-generation stars both crucially depend on how heavy elements mix within the star at the earliest stages of the blast. We present numerical simulations of the
Abel, Abel, Almgren, Alvarez, Bromm, Bromm, Bromm, C. C. Joggerst, Daniel J. Whalen, Fryer, Greif, Greif, Hammer, Heger, Joggerst, Joggerst, Joggerst, Karlsson, Kitayama, Kitayama, Mackey, Nakamura, O'Shea, Scannapieco, Smith, Whalen, Whalen, Whalen, Wise, Wise   +29 more
core   +1 more source

How to model supernovae in simulations of star and galaxy formation [PDF]

, 2017
Author(s): Hopkins, PF; Wetzel, A; Keres, D; Faucher-Giguere, CA; Quataert, E; Boylan-Kolchin, M; Murray, N; Hayward, CC; El-Badry, K | Abstract: © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.
P. Hopkins, A. Wetzel, D. Keres̆, C. Faucher-Giguére, E. Quataert, M. Boylan-Kolchin, N. Murray, C. Hayward, K. El-Badry   +8 more
semanticscholar   +1 more source

Magnified or multiply imaged? – Search strategies for gravitationally lensed supernovae in wide-field surveys [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Strongly lensed supernovae can be detected as multiply imaged or highly magnified transients. In order to compare the performances of these two observational strategies, we calculate expected discovery rates as a function of survey depth in five grizy ...
R. Wojtak, J. Hjorth, C. Gall
semanticscholar   +1 more source

Dual‐Stabilized Single‐Site Fe(II) for Catalytic Conversion of CO2 to Propiolic Acid Under Ambient Condition

EcoEnergy, EarlyView.
We develop a highly cost‐effective heterogeneous catalyst for efficient CO2 conversion to propiolic acid under mild conditions via a nano‐confined approach with porous MIL support. ABSTRACT Efficient conversion of carbon dioxide to organics has been a promising outlet for value‐added carbon dioxide consumption.
Bin Lei, Zhenzhen Zhou, Xiao Liu, Bo Li, Wenyuan Wang, Jian‐Gong Ma, Peng Cheng   +6 more
wiley   +1 more source

Red Supergiants as Supernova Progenitors

Galaxies
The inevitable fate of massive stars in the initial mass range of ≈8–30M⊙ in the red supergiant (RSG) phase is a core-collapse supernova (SN) explosion, although some stars may collapse directly to a black hole.
Schuyler D. Van Dyk
doaj   +1 more source

Optimal Classification and Outlier Detection for Stripped-envelope Core-collapse Supernovae [PDF]

Astrophysical Journal, 2019
In the current era of time-domain astronomy, it is increasingly important to have rigorous, data-driven models for classifying transients, including supernovae.
M. Williamson, M. Modjaz, F. Bianco
semanticscholar   +1 more source