Results 31 to 40 of about 1,346 (168)
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract My life in science, as a faculty member in Higher Education (The Academy), and as a proud member of AGU, reflects the fact that I am one of the very fortunate ones in the Geosciences who went through undergraduate and graduate years during the true blossoming of the science in the early years after the acceptance of Plate Tectonics.
John W. Geissman
wiley +1 more source
The Astrophysical JournalWe numerically investigate the effects of black hole spin and local dissipation profiles on high-frequency quasiperiodic oscillation (HFQPO) observed in black hole X-ray binaries (BHXBs).
Theodore Dezen +2 more
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Physics Letters B, 2019 We report about the possibility for interacting Kerr sources to exist in two different states – black holes or naked singularities – both states characterized by the same masses and angular momenta.
V.S. Manko, E. Ruiz
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Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills +30 more
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Direct Statistical Constraints on the Natal Kick Velocity of a Black Hole in an X-Ray Quiet Binary
The Astrophysical Journal, 2023 In recent years, a handful of “dark” binaries have been discovered with a nonluminous compact object. Astrometry and radial velocity measurements of the bright companion allow us to measure the post-supernova orbital elements of such a binary.
Sharan Banagiri +4 more
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Significant Amplification of Turbulent Energy Dissipation Through the Shock Transition at Mars
Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.Abstract Turbulence is fundamental to energy transfer across scales in space and astrophysical plasmas. Bow shock interactions have long been hypothesized to significantly modify turbulence in planetary environments, yet the quantification of such effects and their parametric dependencies remain largely unaddressed.
Wence Jiang +5 more
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Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy
Advanced Optical Materials, Volume 13, Issue 31, November 5, 2025.Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou +4 more
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New Estimates of the Spin and Accretion Rate of the Black Hole M87*
The Astrophysical Journal LettersIn this Letter, we use the imaging results of M87* from the Event Horizon Telescope (EHT) to calculate the rotational velocity of the inner edge of the accretion disk and find a value of ∼0.14 c .
Michael Drew +4 more
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Coherence, Transport, and Chaos in 1D Bose–Hubbard Model: Disorder vs. Stark Potential
Fortschritte der Physik, Volume 73, Issue 11, November 2025.Quantum coherence and criticality in finite Bose–Hubbard chains are investigated using exact diagonalization. Thermal fluctuations, Stark potential, and disorder reshape coherence, visibility, and superfluid response. Finite‐size systems show signatures of quantum criticality, with disorder suppressing global superfluidity but preserving local ...
Asad Ali +8 more
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Physics Letters BThe study of astrophysical phenomena like black hole shadows is an effective approach to properly understand the modified gravity and explore its validity.
Khadije Jafarzade +2 more
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