A Lightweight Hybrid Framework for Acoustic Echo Cancellation and Suppression via Constrained Recursive Training

Posted by klaurent Peking

Kavli Affiliate: Huawei Zhang | Summary:We propose a hybrid framework that combines deep learning with adaptive filtering for acoustic echo cancellation (AEC) and suppression. It integrates a multi-output neural network to jointly update filter parameters and perform post-processing. A learnable variant of the normalized least mean squares (NLMS) filter is introduced, incorporating a variable step […]


Continue.. A Lightweight Hybrid Framework for Acoustic Echo Cancellation and Suppression via Constrained Recursive Training

Measuring the Clustering of tSZ-Selected Galaxy Clusters with SPT-3G

Posted by klaurent Chicago

Kavli Affiliate: Bradford Benson | Summary:We present a measurement of the spatial clustering of galaxy clusters selected via the thermal Sunyaev-Zel’dovich (tSZ) signal. Using a cluster catalog derived from five years of SPT-3G Main field survey data, we define a sample spanning $0.25 < z < 1.1$, as well as two subsamples spanning $0.25 < […]


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Extreme Stellar Death and Galaxy Feedback at z = 2: A Rest-frame Ultraviolet Characterization of the Strongly Lensed Superluminous Supernova 2025wny

Posted by klaurent Cambridge

Kavli Affiliate: Kaisey Mandel | Summary:We present photometric and spectroscopic follow-up observations of the strongly-lensed H-poor superluminous supernova (SLSN) 2025wny at $z = 2.0155$. We use integral-field Keck-II/KCWI spectroscopy to obtain rest-frame ultraviolet spectra spanning $11$ to $61$ days after maximum light. We use Pan-STARRS photometry to constrain the brightest image’s magnification, finding $μ_A=19.4pm1.6$, a […]


Continue.. Extreme Stellar Death and Galaxy Feedback at z = 2: A Rest-frame Ultraviolet Characterization of the Strongly Lensed Superluminous Supernova 2025wny

HD 715 b, a Warm Jupiter Orbiting a Massive Subgiant Discovered from a Single TESS Transit

Posted by klaurent MIT

Kavli Affiliate: Andrew Vanderburg | Summary:Transiting Warm Jupiters orbiting bright stars are scarcely known, but a substantial number of these planets have been uncovered by the TESS mission. In this work we report the discovery and confirmation of a transiting Warm Jupiter orbiting the bright ($V$ = 8.70) subgiant star HD 715 (TOI-6893). HD 715 […]


Continue.. HD 715 b, a Warm Jupiter Orbiting a Massive Subgiant Discovered from a Single TESS Transit

Formation of Supermassive Black Hole Seeds from Vacuum-Dependent Thermal Dark Matter

Posted by klaurent Tokyo

Kavli Affiliate: Masahiro Kawasaki | Summary:The origin of supermassive black holes, especially those already present at high redshift, remains an open problem. We propose that their seeds are primordial black holes formed from rare overdense regions of conventional thermal DM. A spectator scalar with two degenerate vacua gives the DM different masses, and hence different […]


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A spatially resolved view of Fast Radio Burst host metallicities with Integral-field Spectroscopy

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi Masui | Summary:Magnetar sources are the leading theory for Fast Radio Burst (FRB) progenitors. If magnetars are indeed the dominant sources, we may thus expect any metallicity preference for magnetar formation to be reflected in the FRB site in host galaxies. Here, we leverage Integral Field Unit (IFU) spectroscopy to spatially resolve […]


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Hierarchical Black Hole Mergers at High Redshift: Predictions for LISA and LGWA from SEEDZ

Posted by klaurent Cambridge

Kavli Affiliate: Martin Haehnelt | Summary:We investigate the hierarchical assembly of black holes (BHs) in the early Universe using the next-generation SEEDZ cosmological zoom-in simulations. Our suite follows two independent regions (textscRarepeak and textscNormal1) evolved with three BH feedback prescriptions: no feedback (NoFB), weak feedback (WeakFB), and standard thermal isotropic feedback (FidBH). Focusing on BH […]


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Optimal Photon Counting with Fast, Low Noise Astronomical Imagers

Posted by klaurent MIT

Kavli Affiliate: Deepto Chakrabarty | Summary:Measuring rapid astrophysical phenomena requires many short exposures, which suffer from repeated read noise. A variety of recent technologies are achieving sub-electron read noise, which enable rapid time-domain studies of faint sources. These data can be analyzed with traditional methods, but the ability to resolve individual electrons enables a new […]


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Forming Molecular Hydrogen in a Galaxy Halo Through Star Formation Wind Interactions

Posted by klaurent Chicago

Kavli Affiliate: Hsiaowen Chen |Summary:Molecular hydrogen (H$_2$) is the key ingredient for star formation in galaxies. However, how H$_2$ is distributed in and around galaxies is an open question in astronomy. We report the detection of H$_2$ (covering excitation levels $J = 0$ to 3) in a unique environment at a distance of 139 kpc […]


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Continuous Gravitational Waves from Thermo-Elastic Mountains in Ultraluminous X-ray Pulsars

Posted by klaurent Peking

Kavli Affiliate: Lijing Shao | Summary:Fast-spinning, nonaxisymmetrically deformed neutron stars (NSs) are promising targets for continuous gravitational-wave (CGW) searches with current and next-generation ground-based detectors. Ultraluminous X-ray pulsars (ULXPs), characterized by super-Eddington accretion and strong magnetic fields, provide extreme environments in which substantial nonaxisymmetric deformations may develop. In this Letter, we investigate thermo-elastic mountains generated […]


Continue.. Continuous Gravitational Waves from Thermo-Elastic Mountains in Ultraluminous X-ray Pulsars