General Relativistic Neutrino-driven Turbulence in One-dimensional Core-collapse Supernovae [PDF]
Astrophysical Journal, 2021 Convection and turbulence in core-collapse supernovae (CCSNe) are inherently three-dimensional (3D) in nature. However, 3D simulations of CCSNe are computationally demanding. Thus, it is valuable to modify simulations in spherical symmetry to incorporate
L. Boccioli, G. Mathews, E. O’Connor
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Stability analysis of supermassive primordial stars: a new mass range for general relativistic instability supernovae. [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Observed supermassive black holes in the early universe have several proposed formation channels, in part because most of these channels are difficult to probe. One of the more promising channels, the direct collapse of a supermassive star, has several
Chris Nagele +4 more
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GENERAL-RELATIVISTIC SIMULATIONS OF THREE-DIMENSIONAL CORE-COLLAPSE SUPERNOVAE [PDF]
The Astrophysical Journal, 2012 We study the three-dimensional (3D) hydrodynamics of the post-core-bounce phase of the collapse of a 27 M☉ star and pay special attention to the development of the standing accretion shock instability (SASI) and neutrino-driven convection.
C. Ott +8 more
semanticscholar +5 more sources
Constraint on the event rate of general relativistic instability supernovae from the early JWST deep field data [PDF]
Monthly notices of the Royal Astronomical Society, 2023 General relativistic instability supernovae at 10 ≲ z ≲ 15 are predicted to be observed as red faint point sources, and they can be detected only in the reddest filters in JWST/NIRCam (F444W and F356W).
T. Moriya, Y. Harikane, A. Inoue
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Evolution and explosions of metal enriched supermassive stars: Proton rich general relativistic instability supernovae [PDF]
Monthly notices of the Royal Astronomical Society, 2023 The assembly of supermassive black holes poses a challenge primarily because of observed quasars at high redshift, but additionally because of the current lack of observations of intermediate mass black holes.
Chris Nagele, H. Umeda, Koh Takahashi
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Growth-rate measurement with type-Ia supernovae using ZTF survey simulations [PDF]
Astronomy & Astrophysics, 2023 Measurements of the growth rate of structures at ...
B. Carreres +23 more
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Constraining the Onset Density for the QCD Phase Transition with the Neutrino Signal from Core-collapse Supernovae [PDF]
Astrophysical Journal, 2023 The occurrence of a first-order hadron–quark matter phase transition at high baryon densities is investigated in astrophysical simulations of core-collapse supernovae, to decipher yet incompletely understood properties of the dense matter equation of ...
Noshad Khosravi Largani +2 more
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Determining cosmological-model-independent H0 and post-Newtonian parameter with time-delay lenses and supernovae [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Strong gravitational lensing provides a natural opportunity to test General Relativity (GR). We propose a model-independent method for simultaneous constraining on Hubble constant (H0) and post-Newtonian parameter (γPPN) using strong lensing systems ...
Tonghua Liu, Kai Liao
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Potential signature of a quadrupolar Hubble expansion in Pantheon+ supernovae [PDF]
Monthly notices of the Royal Astronomical Society, 2022 The assumption of isotropy —that the Universe looks the same in all directions on large scales— is fundamental to the standard cosmological model. It is therefore critical to empirically test in which regimes this assumption holds.
Jessica A Cowell +2 more
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New cosmological constraints on $f(T)$ gravity in light of full Planck-CMB and type Ia supernovae data [PDF]
, 2022 We investigate two new observational perspectives in the context of torsional gravitational modification of general relativity, i.e., the $f(T)$ gravity: i) We use Pantheon data of type Ia supernovae motivated by a time variation of the Newton's constant
Suresh Kumar, Rafael C. Nunes, P. Yadav
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