Non-Equilibrium Relativistic Core Collapse of Self-Interacting Dark Matter Halos — Limits On Seed Black Hole Mass

Posted by klaurent Peking

Kavli Affiliate: Xian Chen| Summary: Recent observations of supermassive black holes (SMBHs) at high redshifts pose challenges to standard seeding mechanisms. Among competing models, the collapse of self-interacting dark matter (SIDM) halos provide a plausible explanation for early SMBH formation. While previous studies on modeling the gravothermal collapse of SIDM halos have primarily focused on […]


Continue.. Non-Equilibrium Relativistic Core Collapse of Self-Interacting Dark Matter Halos — Limits On Seed Black Hole Mass

Non-Equilibrium Relativistic Core Collapse of Self-Interacting Dark Matter Halos — Limits On Seed Black Hole Mass

Posted by klaurent Peking

Kavli Affiliate: Xian Chen| Summary: Recent observations of supermassive black holes (SMBHs) at high redshifts pose challenges to standard seeding mechanisms. Among competing models, the collapse of self-interacting dark matter (SIDM) halos provide a plausible explanation for early SMBH formation. While previous studies on modeling the gravothermal collapse of SIDM halos have primarily focused on […]


Continue.. Non-Equilibrium Relativistic Core Collapse of Self-Interacting Dark Matter Halos — Limits On Seed Black Hole Mass

ReveaLLAGN 1: JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas

Posted by klaurent Peking

Kavli Affiliate: Luis Ho | Summary:We present near- and mid-infrared spectra of eight Low-Luminosity Active Galactic Nuclei (LLAGN), spanning nearly four orders of magnitude in black hole mass and Eddington ratio, obtained with JWST/NIRSpec and MIRI as part of the ReveaLLAGN program along with identical archival data of Cen A. The high spatial resolution of […]


Continue.. ReveaLLAGN 1: JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas

ReveaLLAGN 1: JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas

Posted by klaurent Peking

Kavli Affiliate: Luis Ho | Summary:We present near- and mid-infrared spectra of eight Low-Luminosity Active Galactic Nuclei (LLAGN), spanning nearly four orders of magnitude in black hole mass and Eddington ratio, obtained with JWST/NIRSpec and MIRI as part of the ReveaLLAGN program along with identical archival data of Cen A. The high spatial resolution of […]


Continue.. ReveaLLAGN 1: JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas

Boundary critical phenomena in the quantum Ashkin-Teller model

Posted by klaurent Delft

Kavli Affiliate: Natalia Chepiga | Summary:We investigate the boundary critical phenomena of the one-dimensional quantum Ashkin-Teller model using boundary conformal field theory and density matrix renormalization group (DMRG) simulations. Based on the $mathbbZ_2$-orbifold of the $c=1$ compactified boson boundary conformal field theory, we construct microscopic lattice boundary terms that renormalize to the stable conformal boundary […]


Continue.. Boundary critical phenomena in the quantum Ashkin-Teller model

Boundary critical phenomena in the quantum Ashkin-Teller model

Posted by klaurent Delft

Kavli Affiliate: Natalia Chepiga | Summary:We investigate the boundary critical phenomena of the one-dimensional quantum Ashkin-Teller model using boundary conformal field theory and density matrix renormalization group (DMRG) simulations. Based on the $mathbbZ_2$-orbifold of the $c=1$ compactified boson boundary conformal field theory, we construct microscopic lattice boundary terms that renormalize to the stable conformal boundary […]


Continue.. Boundary critical phenomena in the quantum Ashkin-Teller model

Dynamics of AGN feedback in the X-ray bright East and Southwest arms of M87, mapped by XRISM

Posted by klaurent MIT

Kavli Affiliate: Eric Miller | Summary:As the central galaxy in the nearest cluster, M87 provides the best spatial resolution for disentangling the complex interactions between AGN jets and the surrounding environment. We investigate the velocity structure of the multitemperature X-ray gas in M87, particularly in the eastern and southwestern arms associated with past AGN outbursts, […]


Continue.. Dynamics of AGN feedback in the X-ray bright East and Southwest arms of M87, mapped by XRISM

Edge-Aware Image Manipulation via Diffusion Models with a Novel Structure-Preservation Loss

Posted by klaurent Stanford

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:Recent advances in image editing leverage latent diffusion models (LDMs) for versatile, text-prompt-driven edits across diverse tasks. Yet, maintaining pixel-level edge structures-crucial for tasks such as photorealistic style transfer or image tone adjustment-remains as a challenge for latent-diffusion-based editing. To overcome this […]


Continue.. Edge-Aware Image Manipulation via Diffusion Models with a Novel Structure-Preservation Loss

Thick Lunar Crust Amplifies Deci-Hertz Gravitational-Wave Signal

Posted by klaurent Peking

Kavli Affiliate: Xian Chen| Summary: Gravitational waves (GWs) in the $0.01sim1$ Hz band encode unique signatures of the early universe and merging compact objects, but they are beyond the reach of existing observatories. Theoretical models suggest that the Moon could act as a resonant detector, but the unknown influence of its rugged surface and heterogeneous […]


Continue.. Thick Lunar Crust Amplifies Deci-Hertz Gravitational-Wave Signal

Thick Lunar Crust Amplifies Gravitational-Wave Signal

Posted by klaurent Peking

Kavli Affiliate: Xian Chen| Summary: Gravitational waves (GWs) in the $10^-3-0.1$ Hz band encode unique signatures of the early universe and merging compact objects, but they are beyond the reach of existing observatories. Theoretical models suggest that the Moon could act as a resonant detector, but the unknown influence of its rugged surface and heterogeneous […]


Continue.. Thick Lunar Crust Amplifies Gravitational-Wave Signal