Zobrazeno 1 - 10
of 1 846
pro vyhledávání: '"Mathews, A. J."'
Autor:
Gangopadhyay, M. R., Godithi, V. V., Ichiki, K., Inui, R., Kajino, T., Manusankar, A., Mathews, G. J., Yogesh
We show that the recently reported cosmic gravitational wave background by the NANOGrav 15-year collaboration may be the result of resonant particle creation during inflation. For the appropriate amplitude and particle mass an enhancement of the prim
Externí odkaz:
http://arxiv.org/abs/2309.03101
The partcle-induced hadronic de-excitation of the Hoyle state in $^{12}$C induced by inelastic scattering in a hot and dense plasma can enhance the triple-alpha reaction rate. This prevents the production of heavy nuclei within the neutrino-driven wi
Externí odkaz:
http://arxiv.org/abs/2307.02785
We analyze the spectrum of gravitational waves generated by the induced spectrum of tensor fluctuation during warm natural inflation. In our previous work it has been demonstrated that an epoch of warm natural inflation can lead to cosmologically rel
Externí odkaz:
http://arxiv.org/abs/2306.09641
Publikováno v:
EPJ Web of Conferences 274, 01013 (2022)
As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary neutron star mergers using a a variety of nuclear equations of state with and without
Externí odkaz:
http://arxiv.org/abs/2302.12897
Publikováno v:
Galaxies 2023, 11(6), 114
The dynamics of the satellite systems of Milky-Way-like galaxies offer a useful means by which to study the galaxy formation process in the cosmological context. It has been suggested that the currently observed anisotropic distribution of the satell
Externí odkaz:
http://arxiv.org/abs/2302.05774
Publikováno v:
Physics Letters B 835 (2022) 137510
We report on a study of the natural warm inflationary paradigm (WNI). We show two important new results arise in this model. One is that the observational constraints on the primordial power spectrum from the cosmic microwave background (CMB) can be
Externí odkaz:
http://arxiv.org/abs/2207.10394
We present a simple criterion to predict the explodability of massive stars based on the density and entropy profiles before collapse. If a pronounced density jump is present near the Si/Si-O interface, the star will likely explode. We develop a quan
Externí odkaz:
http://arxiv.org/abs/2207.08361
Autor:
Stevenson, Louise M. a, ⁎, Matson, Paul G. a, Pilla, Rachel M. a, Pouil, Simon a, b, Geeza, Tom J. a, Hills, Amber a, Ellis, Zapporah a, Smith, Sydney a, Mathews, Teresa J. a
Publikováno v:
In Science of the Total Environment 10 January 2025 959
Autor:
Ko, Heamin, Jang, Dukjae, Cheoun, Myung-Ki, Kusakabe, Motohiko, Sasaki, Hirokazu, Yao, Xingqun, Kajino, Toshitaka, Hayakawa, Takehito, Ono, Masaomi, Kawano, Toshihiko, Mathews, Grant J.
Publikováno v:
Astrophys. J. 937, 116 (2022)
We investigate the neutrino flavor change effects due to neutrino self-interaction, shock wave propagation as well as matter effect on the neutrino-process of the core-collapsing supernova (CCSN). For the hydrodynamics, we use two models: a simple th
Externí odkaz:
http://arxiv.org/abs/2203.13365
Publikováno v:
Phys. Rev. D 106, 103027 (2022)
It is anticipated that the gravitational radiation detected in future gravitational wave (GW) detectors from binary neutron star (NS) mergers can probe the high-density equation of state (EOS). We perform the first simulations of binary NS mergers wh
Externí odkaz:
http://arxiv.org/abs/2203.05461