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相关论文: Geoneutrino and Hydridic Earth model. Version 2

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Using PREM as a reference model for the Earth density distribution we investigate the sensitivity of the Hyper-Kamiokande (HK) detector to deviations of the Earth i) core average density $\bar{\rho}_C$, ii) lower mantle average density…

高能物理 - 实验 · 物理学 2025-01-28 César Jesús-Valls , Serguey T. Petcov , Junjie Xia

Accurate estimations of atmospheric properties of exoplanets from transmission spectra require understanding of degeneracies between model parameters and observations that can resolve them. We conduct a systematic investigation of such…

地球与行星天体物理 · 物理学 2019-05-08 Luis Welbanks , Nikku Madhusudhan

Knowledge of the composition of the Earth's interior is highly relevant to many geophysical and geochemical problems. Neutrino oscillations are modified in a non-trivial way by the matter effects and can provide valuable and unique…

We have investigated the migration behaviors of uranium (U) and thorium (Th) in Earth and other terrestrial planets. Theoretical models of U and Th migration have been proposed. These models suggest that the unique features of Earth are…

地球物理 · 物理学 2008-11-26 Xuezhao Bao , Ali Zhang

The Sun is believed to have been the recipient of a substantial amount of metal-rich material over the course of its evolution, particularly in the early stages of the Solar System. With a long diffusion timescale, the majority of this…

天体物理学 · 物理学 2009-11-07 R. A. Winnick , Pierre Demarque , Sarbani Basu , D. B. Guenther

In this research note, we outline the extension of the grid of upper atmosphere models first presented in Kubyshkina et al. (2018a). The original grid is based on a 1D hydrodynamic model and consists of about 7000 models covering planets of…

地球与行星天体物理 · 物理学 2021-04-10 Daria Kubyshkina , Luca Fossati

We hypothesise that differences in the temperatures at which the rocky material condensed out of the nebula gas can lead to differences in the composition of key rocky species (e.g., Fe, Mg, Si, Ca, Al, Na) and thus planet bulk density.…

地球与行星天体物理 · 物理学 2018-12-19 Caroline Dorn , John H. D. Harrison , Amy Bonsor , Tom O. Hands

The microwave radiometer aboard the Juno spacecraft provided a measurement of the water abundance found to range between 1 and 5.1 times the protosolar abundance of oxygen in the near-equatorial region of Jupiter. Here, we aim to combine…

地球与行星天体物理 · 物理学 2021-09-29 Olivier Mousis , Jonathan I. Lunine , Artyom Aguichine

We predict that cyanoacetylene (HC$_3$N) is produced photochemically in the atmosphere of GJ 1132 b in abundances detectable by the James Webb Space Telescope (JWST), assuming that the atmosphere is hydrogen dominated and rich in molecular…

地球与行星天体物理 · 物理学 2021-11-17 Paul B. Rimmer , Liton Majumdar , Akshay Priyadarshi , Sam Wright , S. N. Yurchenko

Several lines of evidence indicate a non-chondritic composition for Bulk Earth. If Earth formed from the accretion of chondritic material, its non-chondritic composition, in particular the super-chondritic 142Nd/144Nd and low Mg/Fe ratios,…

地球与行星天体物理 · 物理学 2015-06-23 Amy Bonsor , Zoë M. Leinhardt , Philip J. Carter , Tim Elliott , Michael J. Walter , Sarah T. Stewart

The relative abundance of deuterium (D) in the solar atmosphere is not known. D is not only destroyed in stars, it is also synthesized in the atmospheres of active stars (Prodanovic & Fields 2003). In several cases, production of D in the…

天体物理仪器与方法 · 物理学 2009-09-08 Frank Scherb

The neutrino oscillations in Earth matter introduce modulations in the supernova neutrino spectra. These modulations can be exploited to identify the presence of Earth effects on the spectra, which would enable us to put a limit on the…

高能物理 - 唯象学 · 物理学 2009-11-10 Amol S. Dighe , Mathias Th. Keil , Georg G. Raffelt

Methods to determine abundances of the elements in the atmospheres of F, G, and K stars with precisions of 0.01-0.03 dex are reviewed. Such high-precision stellar abundances have led to the discovery of unexpected phenomena and relations…

太阳与恒星天体物理 · 物理学 2018-11-06 Poul Erik Nissen , Bengt Gustafsson

We point out that an accurate in situ determination of the earth matter density \rho is possible in neutrino factory by placing a detector at the magic baseline, L = \sqrt{2} \pi / G_{F} N_{e} where N_{e} denotes electron number density.…

高能物理 - 唯象学 · 物理学 2008-11-26 Hisakazu Minakata , Shoichi Uchinami

Models that envisage successful subduction channel transport of upper crustal materials below 300 km depth, past a critical phase transition in buoyant crustal lithologies, are capable of accumulating and assembling these materials into…

地球物理 · 物理学 2018-10-26 Bedrich Roskovec , Ondrej Sramek , William F. McDonough

Using the helium abundance measured by Galileo in the atmosphere of Jupiter and interior models reproducing the observed external gravitational field, we derive new constraints on the composition and structure of the planet. We conclude…

天体物理学 · 物理学 2009-10-30 Tristan Guillot , Daniel Gautier , William B. Hubbard

A natural nuclear fission reactor with a power output of 3- 10 terawatt at the center of the earth has been proposed as the energy source of the earth's magnetic field. The proposal can be directly tested by a massive liquid scintillation…

高能物理 - 实验 · 物理学 2007-05-23 R. S. Raghavan

KM3NeT-ORCA is a water-Cherenkov neutrino detector designed for studying the oscillations of atmospheric neutrinos, with the primary objective of measuring the neutrino mass ordering. Atmospheric neutrinos crossing the Earth undergo matter…

仪器与探测器 · 物理学 2019-08-14 Simon Bourret , João A. B. Coelho , Véronique Van Elewyck

The paper focuses on a proposal for an underground antineutrino antenna to further develop the dectection of these particles as a tool to map the distribution of radiogenic heat sources, such as the natural radionuclides and a hypothetical…

地球物理 · 物理学 2007-05-23 R. J. de Meijer , E. R. van der Graaf , K. P. Jungmann

Thermal emission spectra of exoplanets provide constraints on the chemical compositions, pressure-temperature (P-T) profiles, and energy transport in exoplanetary atmospheres. Accurate inferences of these properties rely on the robustness…

地球与行星天体物理 · 物理学 2017-10-20 Siddharth Gandhi , Nikku Madhusudhan