Dynamics of a $2$-dimensional slow-fast Belousov-Zabotinsky model

Kavli Affiliate: Xiang Zhang | First 5 Authors: Ruihan Xu, Ming Sun, Xiang Zhang, , | Summary: For the reduced two-dimensional Belousov-Zhabotinsky slow-fast differential system, the known results are the existence of one limit cycle and its stability for particular values of the parameters. Here, we characterize all dynamics of this system except one degenerate […]


Continue.. Dynamics of a $2$-dimensional slow-fast Belousov-Zabotinsky model

Mitigation of the Brighter-Fatter Effect in the LSST Camera

Kavli Affiliate: Aaron Roodman | Summary:Thick, fully depleted charge-coupled devices (CCDs) are known to exhibit non-linear behavior at high signal levels due to the dynamic behavior of charges collecting in the potential wells of pixels, called the brighter-fatter effect (BFE). This particularly impacts bright calibration stars, which appear larger than their intrinsic shape, creating a […]


Continue.. Mitigation of the Brighter-Fatter Effect in the LSST Camera

Mitigation of the Brighter-Fatter Effect in the LSST Camera

Kavli Affiliate: Stuart Marshall | First 5 Authors: Alex Broughton, Yousuke Utsumi, Andrés Plazas Malagón, Christopher Waters, Craig Lage | Summary: Thick, fully depleted charge-coupled devices (CCDs) are known to exhibit non-linear behavior at high signal levels due to the dynamic behavior of charges collecting in the potential wells of pixels, called the brighter-fatter effect […]


Continue.. Mitigation of the Brighter-Fatter Effect in the LSST Camera

Mitigation of the Brighter-Fatter Effect in the LSST Camera

Kavli Affiliate: Stuart Marshall | First 5 Authors: Alex Broughton, Yousuke Utsumi, Andrés Plazas Malagón, Christopher Waters, Craig Lage | Summary: Thick, fully depleted charge-coupled devices (CCDs) are known to exhibit non-linear behavior at high signal levels due to the dynamic behavior of charges collecting in the potential wells of pixels, called the brighter-fatter effect […]


Continue.. Mitigation of the Brighter-Fatter Effect in the LSST Camera

Watermarking for Neural Radiation Fields by Invertible Neural Network

Kavli Affiliate: Jia Liu | First 5 Authors: Wenquan Sun, Jia Liu, Weina Dong, Lifeng Chen, Ke Niu | Summary: To protect the copyright of the 3D scene represented by the neural radiation field, the embedding and extraction of the neural radiation field watermark are considered as a pair of inverse problems of image transformations. […]


Continue.. Watermarking for Neural Radiation Fields by Invertible Neural Network

Searching for the Highest-z Dual AGN in the Deepest Chandra Surveys

Kavli Affiliate: Steven W. Allen | First 5 Authors: Brandon Sandoval, Adi Foord, Steven W. Allen, Marta Volonteri, Aaron Stemo | Summary: We present an analysis searching for dual AGN among 62 high-redshift ($2.5 < z < 3.5$) X-ray sources selected from publicly available deep Chandra fields. We aim to quantify the frequency of dual […]


Continue.. Searching for the Highest-z Dual AGN in the Deepest Chandra Surveys

First JWST Observations of JAGB Stars in the SN Ia Host Galaxies: NGC 7250, NGC 4536, NGC 3972

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Abigail J. Lee, Wendy L. Freedman, In Sung Jang, Barry F. Madore, Kayla A. Owens | Summary: The J-region Asymptotic Giant Branch (JAGB) method is a standard candle that leverages the constant luminosities of color-selected, carbon-rich AGB stars, measured in the near infrared at 1.2 microns. […]


Continue.. First JWST Observations of JAGB Stars in the SN Ia Host Galaxies: NGC 7250, NGC 4536, NGC 3972

First Constraints on WIMP-Nucleon Effective Field Theory Couplings in an Extended Energy Region From LUX-ZEPLIN

Kavli Affiliate: C. M. Ignarra | Summary:Following the first science results of the LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time projection chamber operating from the Sanford Underground Research Facility in Lead, South Dakota, USA, we report the initial limits on a model-independent non-relativistic effective field theory describing the complete set of possible interactions of a […]


Continue.. First Constraints on WIMP-Nucleon Effective Field Theory Couplings in an Extended Energy Region From LUX-ZEPLIN

Prospects for probing small-scale dark matter models with pulsars around Sagittarius A*

Kavli Affiliate: Lijing Shao | First 5 Authors: Zexin Hu, Lijing Shao, Fupeng Zhang, , | Summary: Future observations with next-generation large-area radio telescopes are expected to discover radio pulsars (PSRs) closely orbiting around Sagittarius~A* (Sgr~A*), the supermassive black hole (SMBH) dwelling at our Galactic Center (GC). Such a system can provide a unique laboratory […]


Continue.. Prospects for probing small-scale dark matter models with pulsars around Sagittarius A*