output
20002026
most citedShadows and gravitational weak lensing by the Schwarzschild black hole in the string cloud background with quintessential field

140 citations

59 papers

astro-ph.SR2026

Discovery and Characterization of Three New High-amplitude delta Scuti Stars from TESS Observations

Chenglong Lv, Ali Esamdin, J. Pascual-Granado +5

We report the discovery and detailed analysis of three new high-amplitude δ Scuti (HADS) stars, TIC 408074920, TIC 189714989, and TIC 34137913, identified from Transiting Exoplanet…

gr-qc2026

Gravitational perturbations of a regular T-duality inspired black hole: Quasinormal modes, excitation factors, and time-domain evolution

Bekir Can Lütfüoğlu, Mardon Abdullaev, Javlon Rayimbaev +2

We study axial gravitational perturbations of the neutral regular black hole generated by a non-local, T-duality-inspired zero-point length and the associated gravitational self-en…

astro-ph.SR2026

Relationship of ICME Composition Signatures with Solar Activity during 2009-2025

Diyorbek Pulatov, Zavkiddin Mirtoshev, Mirabbos Mirkamalov

Coronal Mass Ejections (CMEs) are among the most energetic solar eruptions, expelling magnetized plasma from the corona into interplanetary space. Their interplanetary counterparts…

astro-ph.SR2026

What Causes the Asymmetry of Conjugate Hard X-Ray Footpoints in Solar Flares?

Mirabbos Mirkamalov, Rui Liu, Runbin Luo +1

Hard X-ray (HXR) emission in solar flares critically diagnoses nonthermal electron acceleration, transport, and precipitation. Observations commonly show asymmetric HXR photon flux…

gr-qc2026

Eikonal Ringing, Shadows, Lensing, Grey-Body Factors, and Binding Energy of Asymptotically Flat Regular Black Holes in Phantom Dirac-Born-Infeld Gravity

Mardon Abdullaev, Gumisbek Allambergenov, Diyorbek Rashidov +2

We develop a geodesic-optics description of eikonal quasinormal ringing, blackhole shadows, strong lensing, grey-body factors (GBFs), and the binding energy of massive particles fo…

astro-ph.SR2025★ 1 cited

Observational Properties of Cephei Stars: 88 new samples discovered Based on TESS and Gaia Data

Xiang-dong Shi, Sheng-bang Qian, Li-ying Zhu +5

We present a systematic investigation of Cephei (BCEP) stars by integrating photometric data from the Transiting Exoplanet Survey Satellite (TESS) with astrometric parameters f…