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X-Ray Views of Galactic Accreting Pulsars in High-Mass X-Ray Binaries
Weng, Shan-Shan; Ji, Long
Accreting X-ray pulsars, located in X-ray binaries, are neutron stars with magnetic fields as strong as
Ultra-Low Frequency Waves of Foreshock Origin Upstream and Inside of the Magnetospheres of Earth, Mercury, and Saturn Related to Solar Wind–Magnetosphere Coupling
Juhász, Antal; Bebesi, Zsofia; Dwivedi, Navin Kumar +2 more
This review examines ultra-low frequency (ULF) waves across different planetary environments, focusing on Earth, Mercury, and Saturn. Data from spacecraft missions (CHAMP, Swarm, and Oersted for Earth; MESSENGER for Mercury; and Cassini for Saturn) provide insights into ULF wave dynamics. At Earth, compressional ULF waves, particularly Pc3 waves, …
Radar Observations of Liquid Water in the South Polar Region of Mars: Indications from Astrobiology Perspectives
Xiong, Siting; Ding, Chunyu; Su, Yan +4 more
In recent decades, extensive research has led to the understanding that Mars once hosted substantial liquid-water reserves. While the current Martian landscape boasts significant water-ice deposits at its North and South poles, the elusive presence of liquid-water bodies has remained undetected. A breakthrough occurred with the identification of r…
A Very-High-Energy Gamma-Ray View of the Transient Sky
Carosi, Alessandro; López-Oramas, Alicia
The development of the latest generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) over recent decades has led to the discovery of new extreme astrophysical phenomena in the very-high-energy (VHE, E > 100 GeV) gamma-ray regime. Time-domain and multi-messenger astronomy are inevitably connected to the physics of transient VHE emitters,…
High-Energy Spectra of Black Hole and Neutron Star Low-Mass X-Ray Binaries
Pszota, Gábor
In the case of low-mass X-ray binaries, the companion star is often too faint for detection; therefore, there is no chance for dynamical studies to independently determine the mass of the compact object. In the absence of a mass estimate, one cannot make a distinction as to whether the binary hosts a black hole or neutron star. Therefore, the ques…
The Property of the Gaia Celestial Reference Frame 3 (Gaia-CRF3)
Liu, Guangyi; Guo, Sufen
With the release of Gaia DR3, evaluating the performance and consistency of its reference frame (Gaia-CRF3) with the International Celestial Reference Frame (ICRF3) has become a critical task. Gaia-CRF3 serves as the second non-rotating inertial reference frame in the optical wavelength for the implementation of the International Celestial Referen…
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Dynamical Evidence of a Spiral-Arm-Driving and Gap-Opening Protoplanet from SAO 206462 Spiral Motion
Ren, Bin B.; Ménard, François; Bae, Jaehan +8 more
In the early stages of planetary system formation, young exoplanets gravitationally interact with their surrounding environments and leave observable signatures on protoplanetary disks. Among these structures, a pair of nearly symmetric spiral arms can be driven by a giant protoplanet. For the double-spiraled SAO 206462 protoplanetary disk, we obt…