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astro-ph.SR2026

Understanding the Travel-time Asymmetry of Acoustic Waves in Sunspots With Time-distance Helioseismology

Haiyu Li, Tobías Felipe, Elena Khomenko +3

Mapping the subsurface structure and flow field of sunspots has been a challenging task for helioseismology. In this work, we investigate the propagation of acoustic waves in a sun…

astro-ph.SR2026

High-Frequency Magnetohydrodynamic Waves with Substantial Energy in the Solar Polar Corona

Yuhang Gao, Hui Tian, Richard Morton +5

The acceleration and heating of the fast solar wind remain long-standing challenges in space physics. One type of leading theoretical models requires high-frequency magnetohydrodyn…

astro-ph.SR2026

A Test of FeH Line Parameters using DR19 APOGEE spectra of Benchmark M Dwarfs

Anderson Silva-Andrade, Diogo Souto, Katia Cunha +9

Recent studies have suggested a mismatch of up to 0.20 dex between iron abundances derived from Fe I and FeH lines in the H-band spectra of M dwarfs, and in this work we investigat…

astro-ph.SR2026

Repeated Sunspot Light Bridge Jets Associated with Slipping Base Brightenings

Yadan Duan, Xiaoli Yan, Yuhang Gao +3

Light bridge (LB) jets offer a unique window into small-scale eruptive phenomena within sunspots, the Sun's strongest magnetic environments; however, their generation mechanism rem…

astro-ph.SR2026

Magnetic-Field-Induced Inspiral of Binaries with Circumbinary Disk: Black Hole and Protostellar Systems

Tomoaki Matsumoto, Kenta Hotokezaka, Kohei Inayoshi

The orbital decay of binary systems is a critical process for understanding the evolution of massive binary black holes (MBBHs) and binary star formation. Performing high-resolutio…

astro-ph.SR2025★ 3 cited

Resolving Interchange Reconnection Dynamics in a Fan-Spine-like Topology Observed by Solar Orbiter

Yadan Duan, Xiaoli Yan, Junchao Hong +5

Interchange reconnection is believed to play a significant role in the production of solar jets and solar wind. However, the dynamics of interchange reconnection in the low corona…

astro-ph.SR2025★ 3 cited

The Solar Close Observations and Proximity Experiments (SCOPE) mission

Jun Lin, Jing Feng, Zhenhua Ge +31

The Solar Close Observations and Proximity Experiments (SCOPE) mission will send a spacecraft into the solar atmosphere at a low altitude of just 5 R_sun from the solar center. It…

astro-ph.SR2025★ 1 cited

Measuring the magnetic fields in the chromospheres of low-mass stars

Tianqi Cang, Pascal Petit, Jean-François Donati +11

Magnetic fields in the upper atmospheres of solar-like stars are believed to provide an enormous amount of energy to power the hot coronae and drive large-scale eruptions that coul…

astro-ph.SR2025

A Study of Cataclysmic Variables from the eFEDS Survey

Rui Wang, Wei-Min Gu, Zhi-Xiang Zhang +3

We present 17 cataclysmic variables (CVs) obtained from the crossmatch between the Sloan Digital Sky Survey (SDSS) and eROSITA Final Equatorial Depth Survey (eFEDS), including 8 kn…

astro-ph.SR2025★ 6 cited

Starspots as the origin of ultrafast drifting radio bursts from an active M dwarf

Jiale Zhang, Hui Tian, Stefano Bellotti +16

Detecting coherent radio bursts from nearby M dwarfs provides opportunities for exploring their magnetic activity and interaction with orbiting exoplanets. However, it remains unce…

astro-ph.SR2025★ 1 cited

YSO Variability in the W51 Star-Forming Region

Mi-Ryang Kim, Jeong-Eun Lee, Contreras Peña Carlos +3

Time-domain studies of mid-infrared and submillimeter variability have shown that at least half of protostars are variable. We present a statistical analysis of mid-infrared variab…

astro-ph.SR2025★ 1 cited

Far beyond the Sun: III. The magnetic cycle of Horologii

Julián D. Alvarado-Gómez, Gaitee A. J. Hussain, Eliana M. Amazo-Gómez +6

We present a comprehensive investigation of the magnetic cycle of the young, active solar analogue Horologii ( Hor) based on intensive spectropolarimetric monitoring using H…

astro-ph.SR2025★ 4 cited

A Tale of Two Shocks

Robert F. Wimmer-Schweingruber, Domenico Trotta, Rungployphan Kieokaew +23

Energetic particles in interplanetary space are normally measured at time scales that are long compared to the ion gyroperiod. Such observations by necessity average out the microp…

astro-ph.SR2025★ 11 cited

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne

Meng Zhang, Maosheng Xiang, Yuan-Sen Ting +11

A deep understanding of our Galaxy desires detailed decomposition of its stellar populations via their chemical fingerprints. This requires precise stellar abundances of many eleme…

astro-ph.SR2025★ 12 cited

Exploring the origin of multi-periodic pulsations during a white-light flare

Dong Li, Ding Yuan, Jingye Yan +9

We explored the quasi-periodic pulsations (QPPs) at multiple periods during an X4.0 flare on 2024 May 10 (SOL2024-05-10T06:27), which occurred in the complex active region of NOAA…

astro-ph.SR2025★ 3 cited

Producing type Ia supernovae from hybrid CONe white dwarfs with main-sequence binary companions at low metallicity of Z = 0.0001

Boyang Guo, Xiangcun Meng, Zhijia Tian +2

The nature of progenitors of Type Ia supernovae (SNe Ia) and their explosion mechanism remain unclear. It has been suggested that SNe Ia may be resulted from thermonuclear explosio…

astro-ph.SR2025★ 6 cited

Photometric-Metallicity and Distance Estimates for 70,000 RR Lyrae Stars from the Zwicky Transient Facility

Shunxuan He, Yang Huang, XinYi Li +5

Utilizing Zwicky Transient Facility (ZTF) data and existing RR Lyrae stars (RRLs) catalogs, this study achieves the first calibration of the a…

astro-ph.SR2025★ 9 cited

Location and energy of electrons producing the radio bursts from AD Leo observed by FAST in December 2021

Philippe Zarka, Corentin K. Louis, Jiale Zhang +3

In a recent paper, we presented circularly polarized radio bursts detected by the radio telescope FAST from the flare star AD Leo on December 2-3, 2021, which were attributed to th…

astro-ph.SR2025

Spectra of standing kink waves in loops and the effects of the lower solar atmosphere

Konstantinos Karampelas, Daye Lim, Tom Van Doorsselaere +1

Understanding the effects of the lower solar atmosphere on the spectrum of standing kink oscillations of coronal loops, in both the decaying and decayless regime, is essential for…

astro-ph.SR2024★ 11 cited

Unveiling Key Factors in the Solar Eruptions Leading to the Solar Superstorm in 2024 May

Rui Wang, Ying D. Liu, Xiaowei Zhao +1

NOAA Active Region (AR) 13664/8 produced the most intense geomagnetic effects since the ``Halloween'' event of 2003. The resulting extreme solar storm is believed to be the consequ…

astro-ph.SR2024★ 3 cited

A photometric and spectroscopic study of eight semi-detached eclipsing binaries

Yajuan Lei, Guiping Zhou, Liang Wang +3

By cross-matching the eclipsing binary catalog from TESS with that from LAMOST MRS, semi-detached eclipsing binaries with radial velocities coverage spanning more than 0.3 phases w…

astro-ph.SR2024

Using the Ca II lines in T Tauri stars to infer the abundance of refractory elements in the innermost disk regions

Marbely Micolta, Nuria Calvet, Thanawuth Thanathibodee +5

We present a study of the abundance of calcium in the innermost disk of 70 T Tauri stars in the star-forming regions of Chamaeleon I, Lupus and Orion OB1b. We use calcium as a prox…

astro-ph.SR2024★ 3 cited

Optical optimization of a multi-slit extreme ultraviolet spectrograph for global solar corona diagnostics

Yufei Feng, Xianyong Bai, Sifan Guo +9

The spatial-temporal evolution of coronal plasma parameters of the solar outer atmosphere at global scales, derived from solar full-disk imaging spectroscopic observation in the ex…

astro-ph.SR2024★ 48 cited

Observing the evolution of the Sun's global coronal magnetic field over eight months

Zihao Yang, Hui Tian, Steven Tomczyk +4

The magnetic field in the Sun's corona stores energy that can be released to heat the coronal plasma and drive solar eruptions. Measurements of the global coronal magnetic field ha…