A NICER view of the corona through time-dependent Comptonization of the quasi-periodic oscillations in nine black-hole X-ray binaries

Posted by klaurent MIT

Kavli Affiliate: Erin Kara | Summary:We present a systematic study of the evolution of the corona geometry in nine black hole X-ray binaries (BHXRBs) using archival data from NICER. We identify 171 observations exhibiting quasi-periodic oscillations (QPOs) across various spectral states and model the time-averaged energy spectra of the source, as well as the energy-dependent […]


Continue.. A NICER view of the corona through time-dependent Comptonization of the quasi-periodic oscillations in nine black-hole X-ray binaries

Characteristics and dynamical signatures of recurrent cortical circuits during context-dependent processing

Posted by dbos Columbia

Kavli Affiliate: Kenneth Miller | Authors: Yue Kris Wu, Ho Yin Chau, Serena Di Santo and Kenneth D. Miller | Summary: Context profoundly shapes neural responses and behavior. During context-dependent sensory processing, recurrent connections shape the integration of feedforward sensory input and feed-back input from downstream brain regions. How do different cell types, interacting through […]


Continue.. Characteristics and dynamical signatures of recurrent cortical circuits during context-dependent processing

Visible dual-comb spectroscopy across more than 100 THz with lithium niobate nanophotonic waveguides

Posted by klaurent Caltech

Kavli Affiliate: Alireza Marandi | Summary:Broadband and high-resolution spectroscopy in the visible and ultraviolet is central to advances in multiple fields, including fundamental quantum physics, biology, atmospheric science and astronomy. Traditionally, these measurements are performed with grating or Fourier-transform spectrometers using incoherent light sources. Leveraging coherent light enables powerful frequency-comb-based techniques, but is limited by […]


Continue.. Visible dual-comb spectroscopy across more than 100 THz with lithium niobate nanophotonic waveguides

Assessing climate adaptation among Canada lynx (Lynx canadensis) populations at the trailing edge

Posted by dbos Rockefeller

Kavli Affiliate: Erich Jarvis | Authors: Tanya M Lama, Blair P Bentley, Warren E Johnson, Lisa M Komoroske, Stephen DeStefano, Jennifer Vashon, Kaela Beauclerc, Jason M Kamilar, Giulio Formenti, Andrea Batista, Andrew G Spencer, Olivier Federigo, Erich D Jarvis, Jeff S Bowman, Paul Wilson and John F Organ | Summary: Species must acclimate, shift their […]


Continue.. Assessing climate adaptation among Canada lynx (Lynx canadensis) populations at the trailing edge

Probing valley quantum oscillations via the spin Seebeck effect in transition metal dichalcogenide/ferromagnet hybrids

Posted by klaurent UCAS

Kavli Affiliate: Mamoru Matsuo | Summary:We theoretically investigate spin-valley-locked tunneling transport in a transition-metal dichalcogenide/ferromagnetic-insulator heterostructure under a perpendicular magnetic field, driven by the spin Seebeck effect. We demonstrate that spin-valley coupling together with the magnetic-field-induced valley-asymmetric Landau-level structure enables the generation of a valley-polarized spin current from valley-selective spin excitation. We compare the spin […]


Continue.. Probing valley quantum oscillations via the spin Seebeck effect in transition metal dichalcogenide/ferromagnet hybrids