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Related papers: SNIF: The SuperNova Interactive Fitter

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Spiking neural networks (SNNs) offer biologically inspired computation but remain underexplored for continuous regression tasks in scientific machine learning. In this work, we introduce and systematically evaluate Quadratic…

Neural and Evolutionary Computing · Computer Science 2025-11-11 Ruyin Wan , George Em Karniadakis , Panos Stinis

Visible and infrared image fusion (VIF) has gained significant attention in recent years due to its wide application in tasks such as scene segmentation and object detection. VIF methods can be broadly classified into traditional VIF…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Zixian Zhao , Xingchen Zhang

In the present study, we systematically explore the effect of the radioactive 56Ni and its mixing properties in the ejecta on the plateau of Type IIP supernovae (SNe). We evaluate the importance of 56Ni in shaping light curves of SNe IIP by…

High Energy Astrophysical Phenomena · Physics 2018-12-19 Alexandra Kozyreva , Ehud Nakar , Roni Waldman

In November 2020, the Swift team announced a major update to the calibration of the UltraViolet and Optical Telescope (UVOT) data to correct for the gradual loss of sensitivity over time. Beginning in roughly 2015, the correction affected…

High Energy Astrophysical Phenomena · Physics 2025-09-12 Jason T. Hinkle , Benjamin J. Shappee , Michael A. Tucker

In response to a recently reported observation of evidence for two classes of Type Ia Supernovae (SNe Ia) distinguished by their brightness in the rest-frame near ultraviolet (NUV), we search for the phenomenon in publicly available…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-16 David Cinabro , Daniel Scolnic , Richard Kessler , Ashley Li , Jake Miller

We constructed 70 SuperNova IDentification (SNID; Blondin & Tonry 2007) supernova (SN) templates using 640 spectra of stripped-envelope core-collapse SNe (SESNe) published by Modjaz et al. (2014). Fifty-six SN templates which are…

Solar and Stellar Astrophysics · Physics 2015-04-01 Yuqian Liu , Maryam Modjaz

Spiking Neural Networks (SNNs) offer notable advantages in biological plausibility and energy efficiency, making them promising candidates for building low-power Transformers. However, existing Spiking Transformers largely adhere to a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Zequan Xie , Weiming Zeng , Yunhua Chen , Sichang Ling , Tongyang Chen , Jinsheng Xiao

Tin iodide phosphide (SnIP), an inorganic double-helix material, is a quasi-1D van der Waals semiconductor that shows promise in photocatalysis and flexible electronics. However, our understanding of the fundamental photophysics and charge…

We present the public release of the Complete History of Interaction-Powered Supernovae (CHIPS) code, suited to model a variety of transients that arise from interaction with a dense circumstellar medium (CSM). Contrary to existing…

High Energy Astrophysical Phenomena · Physics 2022-05-11 Yuki Takei , Daichi Tsuna , Naoto Kuriyama , Takatoshi Ko , Toshikazu Shigeyama

Semantic analysis on visible (RGB) and infrared (IR) images has gained significant attention due to their enhanced accuracy and robustness under challenging conditions including low-illumination and adverse weather. However, due to the lack…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Maoxun Yuan , Bo Cui , Tianyi Zhao , Jiayi Wang , Shan Fu , Xue Yang , Xingxing Wei

Optical neural networks (ONNs) herald a new era in information and communication technologies and have implemented various intelligent applications. In an ONN, the activation function (AF) is a crucial component determining the network…

Several types of energetic supernovae, such as superluminous supernovae (SLSNe) and broad-line Ic supernovae (Ic-BL SNe), could be powered by the spin-down of a rapidly rotating magnetar. Currently, most models used to infer the parameters…

High Energy Astrophysical Phenomena · Physics 2023-11-28 Conor M. B. Omand , Nikhil Sarin

Type Ia Supernovae (SNeIa) provided the first evidence of an accelerated expansion of the universe and remain a valuable probe to cosmology. They are deemed standardizable candles due to the observed correlations between its luminosity and…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-04 Cássia S. Nascimento , João Paulo C. França , Ribamar R. R. Reis

Rapidly evolving transients, or objects that rise and fade in brightness on timescales two to three times shorter than those of typical Type Ia or Type II supernovae (SNe), have uncertain progenitor systems and powering mechanisms. Recent…

We present theoretical UBVI- and bolometric light curves of SNe Ia for several explosion models, computed with our multi-group radiation hydro code. We employ our new corrected treatment for line opacity in the expanding medium. The results…

Astrophysics · Physics 2009-11-07 Elena Sorokina , Sergey Blinnikov

Observational cosmology employing optical surveys often require precise flux calibration. In this context we present SNIFS Calibration Apparatus (SCALA), a flux calibration system developed for the SuperNova Integral Field Spectrograph…

Instrumentation and Methods for Astrophysics · Physics 2014-12-04 Simona Lombardo , Greg Aldering , Akos Hoffmann , Marek Kowalski , Daniel Kuesters , Klaus Reif , Mickael Rigault

Infrared and visible image fusion (IVIF) is a fundamental task in multi-modal perception that aims to integrate complementary structural and textural cues from different spectral domains. In this paper, we propose FusionNet, a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Tianyao Sun , Dawei Xiang , Tianqi Ding , Xiang Fang , Yijiashun Qi , Zunduo Zhao

Spiking neural networks (SNNs) are promising brain-inspired energy-efficient models. Compared to conventional deep Artificial Neural Networks (ANNs), SNNs exhibit superior efficiency and capability to process temporal information. However,…

Neural and Evolutionary Computing · Computer Science 2025-02-20 Yulong Huang , Xiaopeng Lin , Hongwei Ren , Haotian Fu , Yue Zhou , Zunchang Liu , Biao Pan , Bojun Cheng

Combining the complementary benefits of frames and events has been widely used for object detection in challenging scenarios. However, most object detection methods use two independent Artificial Neural Network (ANN) branches, limiting…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Dianze Li , Jianing Li , Xu Liu , Zhaokun Zhou , Xiaopeng Fan , Yonghong Tian

Creating high-quality 3D models of clothed humans from single images for real-world applications is crucial. Despite recent advancements, accurately reconstructing humans in complex poses or with loose clothing from in-the-wild images,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Zechuan Zhang , Zongxin Yang , Yi Yang