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pro vyhledávání: '"STELLAR oscillations"'
In Patil et. al 2024a, we developed a multitaper power spectrum estimation method, mtNUFFT, for analyzing time-series with quasi-regular spacing, and showed that it not only improves upon the statistical issues of the Lomb-Scargle periodogram, but al
Externí odkaz:
http://arxiv.org/abs/2405.18509
Autor:
Takata, J., Kong, A. K. H., Wang, X. F., Song, F. F., Mao, J., Hou, X., Hu, C. -P., Lin, L. C. -C., Li, K. L., Hui, C. Y.
ASASSN-V J205543.90+240033.5 (ASJ2055) is a possible post-common envelope binary system. Its optical photometric data shows an orbital variation about $0.52$~days and a fast period modulation of $P_0\sim 9.77$~minute, whose origin is unknown. In this
Externí odkaz:
http://arxiv.org/abs/2308.00867
It has been hypothesized that dark matter is comprised of ultra-light bosons whose collective phenomena can be described as a scalar field undergoing coherent oscillations. Examples include axion and fuzzy dark matter models. In this ultra-light dark
Externí odkaz:
http://arxiv.org/abs/2305.03085
Stellar oscillations can be of topological origin. We reveal this deep and so-far hidden property of stars by establishing a novel parallel between stars and topological insulators. We construct an hermitian problem to derive the expression of the st
Externí odkaz:
http://arxiv.org/abs/2210.02783
Autor:
O'Callaghan, Jonathan (AUTHOR)
Publikováno v:
Scientific American. Oct2023, Vol. 329 Issue 3, p8-11. 4p. 1 Color Photograph.
Modeling Stellar Oscillations and Granulation in Radial Velocity Time Series: A Fourier-based Method
Autor:
Guo, Zhao, Ford, Eric B., Stello, Dennis, Luhn, Jacob K., Mahadevan, Suvrath, Gupta, Arvind F., Yu, Jie
Tens of thousands of solar-like oscillating stars have been observed by space missions. Their photometric variability in the Fourier domain can be parameterized by a sum of two super-Lorentizian functions for granulation and a Gaussian-shaped power e
Externí odkaz:
http://arxiv.org/abs/2202.06094
Akademický článek
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Autor:
Sotani, Hajime1,2,3 (AUTHOR) sotani@yukawa.kyoto-u.ac.jp
Publikováno v:
Universe (2218-1997). Jun2024, Vol. 10 Issue 6, p231. 34p.