Tootfinder

Two Types of $1/f$ Range in Solar Wind Turbulence
Zesen Huang, Marco Velli, B. D. G. Chandran, Chen Shi, Yuliang Ding, Lorenzo Matteini, Kyung-Eun Choi
https://arxiv.org/abs/2506.17523

Two Types of $1/f$ Range in Solar Wind Turbulence
The $1/f$ noise is a ubiquitous phenomenon in natural systems. Since the advent of space exploration, the $1/f$ range has been consistently observed in \textit{in situ} solar wind measurements throughout the heliosphere, sparking decades of debate regarding its origin. Recent Parker Solar Probe (PSP) observations near the Alfvén surface have revealed a systematic absence of the $1/f$ range in pristine solar wind, providing a unique opportunity to investigate its origin in solar wind turbulence…

Using Real-Variable Techniques to Study Zeros of Complex-Valued Harmonic Functions
Jennifer Brooks, Mary Jenkins, Samuel Liechty, Kaden Parker, Katherine Perez, Dallin Robison, Eli Sampson, Matthew G. Wilson
https://arxiv.org/abs/2506.14966

Using Real-Variable Techniques to Study Zeros of Complex-Valued Harmonic Functions
We investigate the zeros of two one-parameter families of harmonic functions and describe how the number of zeros depends on the parameter. Our functions have the property that all zeros lie on certain rays in the complex plane and thus we are able to use real-variable techniques to count the zeros on each ray.

Scrutinizing the impact of the solar modulation on AMS-02 antiproton excess
Kai-Kai Duan, Xiao Wang, Wen-Hao Li, Zhi-Hui Xu, Yue-Lin Sming Tsai, Yi-Zhong Fan
https://arxiv.org/abs/2506.13352

Scrutinizing the impact of the solar modulation on AMS-02 antiproton excess
This study examines the impact of solar modulation on the antiproton excess observed by AMS-02, which may indicate dark matter (DM) annihilation. We analyze three solar modulation models: the force-field approximation (FFA), a time-, charge-, and rigidity-dependent FFA, and a three-dimensional numerical simulation based on the Parker transport equation. Based on AMS-02 latest antiproton data (2025), our results show that the significance of the DM signal is sensitive to the chosen modulation mo…