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astro-ph.SR2026

Back Reaction of the Untwisting Solar Corona Scars Sunspots

Chen Xing, Xin Cheng, Guillaume Aulanier +1

The evolution of magnetic fields in the tenuous solar corona is predominantly governed by the motions of the underlying dense photosphere. Despite, coronal magnetic restructuring d…

astro-ph.SR2026

Magnetic fields in Massive Star-Forming Regions (MagMaR). VIII. Magnetic field overrun by gravity in GGD 27's accretion streamers

M. Fernández-López, J. A. López-Vázquez, J. M. Girart +20

Context. Accretion streamers connected to protostellar disks and/or envelopes are thought to transport material across several thousand of au. Whether the motions of the gas compri…

astro-ph.SR2026

Mechanisms for magnetic braking boost and disruption: the role of irradiation-driven winds and convective turnover time spike in cataclysmic variables

Vladislav Dodon, Xiang-Dong Li, Xiao-jie Xu +2

The saturated, boosted, and disrupted magnetic braking (SBD MB) model is an empirical prescription that has recently gained support from close-binary observations. Different boosti…

astro-ph.SR2026

Formation of black holes from He stars

Gang Long, Bo Wang, Philipp Podsiadlowski +5

Massive He stars are potential candidates of type Ib/c supernova (SN) progenitors. Understanding their final fates remains a key issue in astrophysics. In this work, we investigate…

astro-ph.SR2026★ 1 cited

Two late-T dwarfs at kiloparsec distances revealed by JWST UNCOVER survey

D. H. Li, Z. H. Zhang, H. H. Peng +3

We conducted a search for brown dwarf candidates in a James Webb Space Telescope deep field around A2744 to investigate the space density of these objects at kiloparsec distances.…

astro-ph.SR2026★ 5 cited

Binarity at LOw Metallicity (BLOeM): Projected rotational velocities

D. J. Lennon, S. R. Berlanas, A. Herrero +36

The Binarity at LOw Metallicity (BLOeM) survey is an ESO large programme designed to obtain multi-epoch spectroscopy for 929 massive stars in the Small Magellanic Cloud (SMC). It w…

astro-ph.SR2026★ 5 cited

Digging into the Interior of Hot Cores with ALMA (DIHCA). VII. Disk candidates around high-mass stars and evidence of anisotropic infall

Fernando A. Olguin, Patricio Sanhueza, Yoko Oya +19

We study the kinematics of condensations in 30 fields forming high-mass stars with ALMA at a high-resolution of ~0.08'' on average (~230 au). The presence of disks is important for…

astro-ph.SR2026★ 2 cited

HOPS-288: A Laboratory for Complex Organics in Proto-multiple Systems

Shih-Ying Hsu, Nadia M. Murillo, Chin-Fei Lee +21

Complex organic molecules (COMs) in young stellar objects (YSOs) have attracted significant attention in recent years due to their potential connection to pre-biotic chemistry and…

astro-ph.SR2026★ 4 cited

Thermal-timescale accretion does not always yield critical rotation in mass gainers

Chen Wang, Mike Y. M. Lau, Xiang-Dong Li +7

Binary evolution plays a central role in producing rapidly rotating stars. Previous studies have shown that mass gainers in binaries can reach critical rotation after accreting onl…

astro-ph.SR2025★ 6 cited

Enhanced Non-Thermal Line Broadening inside Coronal Cavities above Solar Prominences revealed by Spectral Imaging CoronaGraph

Chenxi Huangfu, Hui Fu, Bo Li +5

Coronal cavities, often associated with prominences, are crucial structures in understanding coronal heating and the eruption mechanism of Coronal Mass Ejections (CMEs). Previous s…

astro-ph.SR2025★ 2 cited

Data-driven Radiative Magnetohydrodynamics Simulations with the MURaM Code: the Emergence of Active Region 11158 and the X2.2 Flare

Feng Chen

We present the application of the data-driven branch of the MURaM code to the extensively studied flare-productive active region 11158. We refine the hybrid model strategy, which w…

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

Rotation of flux ropes in the low corona

Brigitte Schmieder, Anwesha Maharana, Jin Han Guo +2

Eruptions of filaments are defined by different parameters, specially, sigmoid handedness and direction of the eruption, which are important parameters for forecasting the geoeffec…

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★ 5 cited

Interacting binaries on the Main Sequence as in-situ tracers of mass transfer efficiency and stability

Koushik Sen, Mathieu Renzo, Harim Jin +8

Understanding the transfer of mass and angular momentum in binary interactions is crucial for modelling the evolution of any interacting binary after the first mass transfer phase.…

astro-ph.SR2025★ 1 cited

Data-driven Radiative Magnetohydrodynamics Simulations with the MURaM Code: Coronal Heating and Dynamics in an Emerging Active Region

Feng Chen

We present the application of the data-driven branch of the MURaM code, which follows the evolution of the active region 11640 over 4 days starting from 2012 December 30 at 12:00 U…

astro-ph.SR2025★ 15 cited

Observation of undepleted phosphine in the atmosphere of a low-temperature brown dwarf

Adam J. Burgasser, Eileen C. Gonzales, Samuel A. Beiler +16

The atmospheres of low-temperature brown dwarfs and gas giant planets are expected to contain the phosphine molecule, PH However, previous observations have shown much lower ab…

astro-ph.SR2025★ 22 cited

A high fraction of close massive binary stars at low metallicity

H. Sana, T. Shenar, J. Bodensteiner +74

At high metallicity, a majority of massive stars have at least one close stellar companion. The evolution of such binaries is subject to strong interaction processes, heavily impac…

astro-ph.SR2025

Microwave Imaging Spectroscopy Diagnosis of the Slow-rise Precursor of a Major Solar Eruption

Yuankun Kou, Xin Cheng, Sijie Yu +3

In this Letter, taking advantage of microwave data from the Expanded Owens Valley Solar Array and extreme-ultraviolet (EUV) data from the Atmospheric Imaging Assembly, we present t…

astro-ph.SR2025★ 1 cited

Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young [M4 + M4] + [T7 + T8] hierarchical quadruple

Z. H. Zhang, F. Navarete, M. C. Galvez-Ortiz +13

Benchmark brown dwarfs in wide binary systems are crucial for characterizing substellar objects and calibrating atmospheric and evolutionary models. However, brown dwarf benchmarks…

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★ 11 cited

Populations of evolved massive binary stars in the Small Magellanic Cloud II: Predictions from rapid binary evolution

C. Schürmann, X. -T. Xu, N. Langer +10

Massive star evolution plays a crucial role in astrophysics but bares large uncertainties. This problem becomes more severe by the majority of massive stars being born in close bin…

astro-ph.SR2025

New submillimetre HCN lasers in carbon-rich evolved stars

W. Yang, K. T. Wong, H. Wiesemeyer +6

Strong laser emission from hydrogen cyanide (HCN) at 805 and 891 GHz has been discovered towards carbon-rich (C-rich) AGB stars, originating from the Coriolis-coupled system betwee…

astro-ph.SR2025★ 1 cited

Understanding observational characteristics of solar flare current sheets

Zining Ren, Yulei Wang, Xin Cheng +1

The elongated bright structures above solar flare loops are suggested to be current sheets, where magnetic reconnection takes place. Observations have revealed various characterist…