Electromagnetic alignment and jet precession around supermassive black holes: Quasi-periodic oscillations in tidal disruption events

Posted by klaurent Peking

Kavli Affiliate: Xian Chen| Summary: We evaluate quasi-periodic oscillations and jet formation in tidal disruption events using the covariant formulation of electromagnetic angular-momentum transfer. General-relativistic frame-dragging tears apart misaligned transient accretion flows, forming an isolated inner mini-disk. The accumulation of magnetic flux on the event horizon powers a relativistic jet via the Blandford-Znajek mechanism. Because […]


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Variational Continuation for Double Pendulum Periodic Orbits

Posted by klaurent MIT

Kavli Affiliate: Max Tegmark | Summary:We present a Hessian-based approach to numerically continue periodic orbits in dynamical systems. A loop (periodic orbit candidate) is parametrized as a Fourier series; a loss function is defined based on the deviation of the loop from the physical differential equations. Unlike previous work relying on hand-derived Jacobians, our method […]


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Planetary gas gaps and kinematic signatures in the planet forming disk around WISPIT 2

Posted by klaurent Peking

Kavli Affiliate: Ruobing Dong | Summary:The giant planet formation process in disks of gas and dust surrounding young stars is observationally still poorly constrained. Direct detection of protoplanets within the disk remains limited with current facilities. Indirect observational evidence of protoplanets through substructures or deviations from Keplerian rotation in the gas remains ambiguous in absence […]


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SARAF represses the mild hypothermia response through the regulation of JUN

Posted by dbos Hopkins

Kavli Affiliate: Michael Beer | Authors: Kijin Jang, Kevin Ostacolo, Valdimar Sveinsson, Michael A Beer, Kimberley Jade Anderson and Hans Tomas Bjornsson | Summary: Abstract The mild hypothermia response (MHR) is a conserved mammalian cytoprotective program activated upon exposure to mild hypothermia (32 °C) that contributes to the neuroprotective effects of therapeutic hypothermia following hypoxic […]


Continue.. SARAF represses the mild hypothermia response through the regulation of JUN

Modeling Patient-Reported Pain Trajectories with Frequent Minimum and Maximum Scores

Posted by dbos Hopkins

Kavli Affiliate: Martin Lindquist | Authors: Yanxi Liu, Richard E. Harris, Daniel Clauw, Emine Bayman, Andrew Leroux and Martin A. Lindquist | Summary: Chronic pain is a widespread public health issue that imposes substantial health, emotional, and economic burdens on individuals and communities. Because pain is subjective and lacks objective biomarkers, it is typically measured […]


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A cognitive representation in primary visual cortex modulated by vision

Posted by dbos Columbia, UCSD / Salk, UCSF

Kavli Affiliate: Loren Frank, Massimo Scanziani, and Razi Haque | Authors: Kyu Hyun Lee, Philip Adenekan, Fan Gao, Jenny Zhou, Jose Hernandez, Allison Yorita, Razi Haque, Kenneth Kay, Massimo Scanziani and Loren Frank | Summary: Primary visual cortex (V1) is a critical substrate for mammalian vision. Traditionally, visual inputs are thought to be the main […]


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Widespread Inflows Reveal Baryonic Cycling in Star-forming and Quiescent Galaxies

Posted by klaurent Peking

Kavli Affiliate: Luis Ho | Summary:Cool-gas inflows, required to sustain star formation, have been fundamental in simulations yet remained observationally elusive. Using DESI spectroscopy of ~30,000 galaxies, we identify coherent inflowing gas (~100 km/s) in 20-50% of the sample, yielding a population-level census of gas flows. We uncover a striking inversion: inflows are detected in […]


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Super-Eddington Accretion and Early-Stage Feedback in Ton S180

Posted by klaurent Peking

Kavli Affiliate: Luis Ho | Summary:Narrow-line Seyfert 1 (NLSy1) galaxies are key laboratories for studying rapid supermassive black hole (SMBH) growth and active galactic nucleus (AGN) feedback at high accretion rates. We investigate the nearby NLSy1 Ton S180 with VLT-MUSE optical integral field spectroscopy to connect its nuclear accretion properties with the spatially resolved ionized […]


Continue.. Super-Eddington Accretion and Early-Stage Feedback in Ton S180

Super-Eddington Accretion and Early-Stage Feedback in Ton S180

Posted by klaurent Peking

Kavli Affiliate: Luis Ho | Summary:Narrow-line Seyfert 1 (NLSy1) galaxies are key laboratories for studying rapid supermassive black hole (SMBH) growth and active galactic nucleus (AGN) feedback at high accretion rates. We investigate the nearby NLSy1 Ton S180 with VLT-MUSE optical integral field spectroscopy to connect its nuclear accretion properties with the spatially resolved ionized […]


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Efficient Conversion of Optical to Mechanical States Close to the Single-Quantum Level

Posted by klaurent Delft

Kavli Affiliate: Simon Groblacher | Summary:Coherent interfaces between optical photons and mechanical excitations provide a promising route towards phonon-state engineering and hybrid quantum information processing. Cavity optomechanical systems enable such interfaces via optomechanically induced transparency (OMIT), allowing coherent mapping between traveling optical fields and localized mechanical modes. However, previous implementations of OMIT conversion protocols were […]


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