Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jeehyun Yang"'
Autor:
Jeehyun Yang, Renyu Hu
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L48 (2024)
Understanding the planetary envelope composition of sub-Neptune-type exoplanets is challenging due to the inherent degeneracy in their interior composition scenarios. Particularly, the planetary envelope’s H _2 O/H _2 ratio, which can also be expre
Externí odkaz:
https://doaj.org/article/133a85a2d6a14fed81518d8b2b2df703
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 2, p L22 (2024)
LHS 1140 b is a small planet orbiting in the habitable zone of its M4.5V dwarf host. Recent mass and radius constraints have indicated that it has either a thick H _2 -rich atmosphere or substantial water by mass. Here we present a tra
Externí odkaz:
https://doaj.org/article/3efaa7666be14f4a91beaf925b89187c
Autor:
Jeehyun Yang, Renyu Hu
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 189 (2024)
With the advent of JWST and the spectroscopic characterization of exoplanet atmospheres in unprecedented detail, there is a demand for more complete pictures of chemical and photochemical reactions and their impacts on atmospheric composition. Tradit
Externí odkaz:
https://doaj.org/article/a94afadcfcb8436c84faafbce3ee2f1e
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 1, p 26 (2023)
A detailed modeling of simultaneous UV-photochemical and thermochemical processes in exoplanet atmosphere-like conditions is essential for the analysis and interpretation of a vast amount of current and future spectral data from exoplanets. However,
Externí odkaz:
https://doaj.org/article/31f3d2ef77ea49e591db899384f532fc
Publikováno v:
Multimedia Tools and Applications.
Autor:
Benjamin Fleury, Yves Benilan, Olivia Venot, Jeehyun Yang, Bryana Henderson, Mark Swain, Murthy Gudipati
1. IntroductionFor exoplanets with T < ~1500 K, photochemistry can seriously affect the atmospheric gas-phase composition [1] — on the one hand by destructing major molecules such as carbon monoxide (CO), water (H2O), or methane (CH4) and on the ot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c1e4d5d943af31b6e72bfb49aca88fe
https://doi.org/10.5194/epsc2022-29
https://doi.org/10.5194/epsc2022-29
Publikováno v:
Physical Chemistry Chemical Physics. 23:14325-14339
The formation of polycyclic aromatic hydrocarbons (PAHs) during combustion has a substantial impact on environmental pollution and public health. The hydrogen-abstraction-acetylene-addition (HACA) mechanism is expected to be a significant source of l
Publikováno v:
International Journal of Chemical Kinetics. 52:752-768
Publikováno v:
The Journal of Physical Chemistry A. 124:2871-2884
The addition of vinylic radicals to acetylene is an important step contributing to the formation of polycyclic aromatic hydrocarbons in combustion. The overall reaction 3C2H2 → C6H6 could result in...
Autor:
Yoko Ohtomo, Jeehyun Yang, Miu Nishikata, Daisuke Kawamoto, Yuki Kimura, Tsubasa Otake, Tsutomu Sato
Publikováno v:
Minerals; Volume 12; Issue 9; Pages: 1110
Recent studies have suggested that a chromian spinel can be formed under natural hydrothermal conditions; however, the required conditions, process, and associated redistribution of Cr are still poorly understood. Here, chromian spinel formation was