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Related papers: SNIF: The SuperNova Interactive Fitter

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We present an analytic model for bolometric light curves which are powered by the interaction between supernova ejecta and a dense circumstellar medium. This model is aimed at modeling Type IIn supernovae to determine the properties of…

High Energy Astrophysical Phenomena · Physics 2014-01-20 Takashi J. Moriya , Keiichi Maeda , Francesco Taddia , Jesper Sollerman , Sergei I. Blinnikov , Elena I. Sorokina

This paper presents a deep neural network called DIVA unfolding a baseline adaptive denoising algorithm (De-QuIP), relying on the theory of quantum many-body physics. Furthermore, it is shown that with very slight modifications, this…

Image and Video Processing · Electrical Eng. & Systems 2023-01-03 Sayantan Dutta , Adrian Basarab , Bertrand Georgeot , Denis Kouamé

As the number of heterogeneous redundant sensors on unmanned aerial vehicle (UAV) increases, onboard sensors require a more rational and efficient credibility evaluation system and a resilient fusion framework to achieve the essence of…

Signal Processing · Electrical Eng. & Systems 2024-03-05 Ye Xiaoyu , Song Fujun , Zhu Xiaohu , Zeng Qinghua

Recent Transformer-based low-light enhancement methods have made promising progress in recovering global illumination. However, they still struggle with non-uniform lighting scenarios, such as backlit and shadow, appearing as over-exposure…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Hanting Li , Fei Zhou , Xin Sun , Yang Hua , Jungong Han , Liang-Jie Zhang

Spiking neural networks (SNNs) based on Leaky Integrate and Fire (LIF) model have been applied to energy-efficient temporal and spatiotemporal processing tasks. Thanks to the bio-plausible neuronal dynamics and simplicity, LIF-SNN benefits…

Machine Learning · Computer Science 2022-03-04 Zhenzhi Wu , Hehui Zhang , Yihan Lin , Guoqi Li , Meng Wang , Ye Tang

Photonic integrated circuits utilize planar waveguides to process light on a chip, encompassing functions like generation, routing, modulation, and detection. Similar to the advancements in the electronics industry, photonics research is…

We present generalized supernova (SN) light curve (LC) models for a variety of power inputs. We provide an expression for the power input that is produced by self-similar forward and reverse shocks in SN ejecta - circumstellar matter (CSM)…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Emmanouil Chatzopoulos , J. Craig Wheeler , Jozsef Vinko

Recent studies have demonstrated that the convolutional networks heavily rely on the quality and quantity of generated features. However, in lightweight networks, there are limited available feature information because these networks tend…

Computer Vision and Pattern Recognition · Computer Science 2019-05-30 Yang Yao , Xu Zhang , Baile Xu , Furao Shen , Jian Zhao

Tiny Machine Learning (TinyML) has become a growing field in on-device processing for Internet of Things (IoT) applications, capitalizing on AI algorithms that are optimized for their low complexity and energy efficiency. These algorithms…

Hardware Architecture · Computer Science 2024-11-05 Asmer Hamid Ali , Mozhgan Navardi , Tinoosh Mohsenin

Supernovae (SNe) that show evidence of strong shock interaction between their ejecta and pre-existing, slower circumstellar material (CSM) constitute an interesting, diverse, and still poorly understood category of explosive transients. The…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Nathan Smith

A surface integral equation solver is proposed for fast and accurate simulation of interconnects embedded in stratified media. A novel technique for efficient computation of the multilayer Green's function is proposed. Using the Taylor…

Computational Physics · Physics 2019-03-11 Shashwat Sharma , Utkarsh R. Patel , Sean V. Hum , Piero Triverio

The current and future need for high-energy neutrons has been a subject of increasing discussion and concern. Immediate applications for such an intense neutron source include medical isotope production, high-energy physics (HEP) research,…

Accelerator Physics · Physics 2023-03-13 Lance L Snead , Daniel Winklehner , Dennis Whyte , Steve Zinkle , Zach Hartwig , David Sprouster

Over the past two decades, an increasing number of transients have shown luminous activity at their explosion sites weeks to years before an interacting supernova (SN) is observed. For some objects, this pre-SN activity is typically linked…

Infrared and visible image fusion (IVIF) expects to obtain images that retain thermal radiation information from infrared images and texture details from visible images. In this paper, a model-based convolutional neural network (CNN) model,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Zixiang Zhao , Shuang Xu , Jiangshe Zhang , Chengyang Liang , Chunxia Zhang , Junmin Liu

SAXSFit is a computer analysis program that has been developed to assist in the fitting of small-angle x-ray and neutron scattering spectra primarily from nanoparticles (nanopores). The fitting procedure yields the pore or particle size…

Data Analysis, Statistics and Probability · Physics 2009-02-02 Bridget Ingham , Haiyong Li , Emily L. Allen , Michael F. Toney

Light strongly interacts with structures that are of a similar scale to its wavelength; typically nanoscale features for light in the visible spectrum. However, the optical response of these nanostructures is usually fixed during the…

We present a novel differentiable rendering framework for joint geometry, material, and lighting estimation from multi-view images. In contrast to previous methods which assume a simplified environment map or co-located flashlights, in this…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Jingyang Zhang , Yao Yao , Shiwei Li , Jingbo Liu , Tian Fang , David McKinnon , Yanghai Tsin , Long Quan

The APerture SYNthesis SIMulator is a simple interactive tool to help the students visualize and understand the basics of the Aperture Synthesis technique, applied to astronomical interferometers. The users can load many different…

Instrumentation and Methods for Astrophysics · Physics 2017-06-07 Ivan Marti-Vidal

Aims. With our time-dependent model atmosphere code PHOENIX, our goal is to simulate light curves and spectra of hydrodynamical models of all types of supernovae. In this work, we simulate near-infrared light curves of SNe Ia and confirm…

High Energy Astrophysical Phenomena · Physics 2012-01-10 Dennis Jack , Peter H. Hauschildt , E. Baron

The interaction of supernova ejecta with a surrounding circumstellar medium (CSM) generates a strong shock which can convert the ejecta kinetic energy into observable radiation. Given the diversity of potential CSM structures (arising from…

High Energy Astrophysical Phenomena · Physics 2024-08-08 David Khatami , Daniel Kasen