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This paper presents a new Compressive Sensing (CS) scheme for detecting network congested links. We focus on decreasing the required number of measurements to detect all congested links in the context of network tomography. We have expanded…

网络与互联网体系结构 · 计算机科学 2013-01-24 Hoda S. Ayatollahi Tabatabaii , Hamid R. Rabiee , Mohammad Hossein Rohban , Mostafa Salehi

The mass-luminosity relation is a fundamental law of astrophysics. We have suggested that the currently used mass-luminosity relation is not correct for the M/M_sun > 2.7 range of mass since it was created using double-lined eclipsing…

太阳与恒星天体物理 · 物理学 2020-09-02 Alexei Yu. Kniazev , Oleg Yu. Malkov , Ivan Yu. Katkov , Leonid N. Berdnikov

We present new BVR band photometric light curves of BO Aries obtained in 2020 and combined them with the Transiting Exoplanet Survey Satellite (TESS) light curves. We obtained times of minima based on Gaussian and Cauchy distributions and…

太阳与恒星天体物理 · 物理学 2021-02-17 Atila Poro , Shiva Zamanpour , Maryam Hashemi , Yasemin Aladağ , Nazim Aksaker , Samaneh Rezaei , Arif Solmaz

We present new photometric observations of RV Tri. A complete light curve was obtained in the R and V filters. These light curves were processed by the Wilson-Devinney (WD) code and the FOTEL to get solution of this eclipsing binary system.…

天体物理学 · 物理学 2007-05-23 F. Hroch , M. Basny

Aims: The Danish 1.54-meter telescope at the La Silla observatory was used for photometric monitoring of selected eccentric eclipsing binaries located in the Small Magellanic Cloud. The new times of minima were derived for these systems,…

太阳与恒星天体物理 · 物理学 2014-12-03 P. Zasche , M. Wolf , J. Vrastil , J. Liska , M. Skarka , M. Zejda

In this study, we present the preliminary light curve analysis of the contact binary SW Lac, using B, V light curves of the system spanning 2 years (2009 - 2010). During the spot modeling process, we used the information coming from the…

太阳与恒星天体物理 · 物理学 2016-08-14 H. V. Şenavcı

The transit method is one of the most relevant exoplanet detection techniques, which consists of detecting periodic eclipses in the light curves of stars. This is not always easy due to the presence of noise in the light curves, which is…

We conducted the first light curve study of the binary star EL Tuc within the Binary Systems of South and North (BSN) Project framework. The photometric observations were made using standard multiband BVRI filters at an observatory in…

太阳与恒星天体物理 · 物理学 2024-09-02 Elham Sarvari , Eduardo Fernández Lajús , Atila Poro

Blind Compressed Sensing (BCS) is an extension of Compressed Sensing (CS) where the optimal sparsifying dictionary is assumed to be unknown and subject to estimation (in addition to the CS sparse coefficients). Since the emergence of BCS,…

信息论 · 计算机科学 2015-08-11 Mohammad Aghagolzadeh , Hayder Radha

Background subtraction is a fundamental pre-processing task in computer vision. This task becomes challenging in real scenarios due to variations in the background for both static and moving camera sequences. Several deep learning methods…

计算机视觉与模式识别 · 计算机科学 2020-11-09 Jhony H. Giraldo , Thierry Bouwmans

The modeling of binary microlensing light curves via the standard sampling-based method can be challenging, because of the time-consuming light-curve computation and the pathological likelihood landscape in the high-dimensional parameter…

天体物理仪器与方法 · 物理学 2022-10-17 Haimeng Zhao , Wei Zhu

High precision lightcurves combined with eclipse mapping techniques can reveal the horizontal and vertical structure of a planet's thermal emission and the dynamics of hot Jupiters. Someday, they even may reveal the surface maps of rocky…

地球与行星天体物理 · 物理学 2023-05-03 Everett Schlawin , Ryan Challener , Megan Mansfield , Emily Rauscher , Arthur D. Adams , Jacob Lustig-Yaeger

Blind signal separation (BSS) is an important and challenging signal processing task. Given an observed signal which is a superposition of a collection of unknown (hidden/latent) signals, BSS aims at recovering the separate, underlying…

数值分析 · 数学 2024-06-25 Truman Hickok , Sriram Nagaraj

This paper describes the VARTOOLS program, which is an open-source command-line utility, written in C, for analyzing astronomical time-series data, especially light curves. The program provides a general-purpose set of tools for processing…

天体物理仪器与方法 · 物理学 2016-05-24 Joel D. Hartman , Gáspár Á Bakos

We present a method to compute the magnification of a finite source star lensed by a triple lens system based on the image boundary (contour integration) method. We describe a new procedure to obtain continuous image boundaries from…

天体物理仪器与方法 · 物理学 2021-03-03 Renkun Kuang , Shude Mao , Tianshu Wang , Weicheng Zang , Richard J. Long

We report results from a search for Galactic high-mass eclipsing binaries. The photometric monitoring campaign was performed in Sloan $r$ and $i$ with the robotic twin refractor RoBoTT at the Universit\"atssternwarte Bochum in Chile and…

太阳与恒星天体物理 · 物理学 2019-11-12 F. Pozo Nuñez , R. Chini , A. Barr Domínguez , Ch. Fein , M. Hackstein , Pietrzyński , Grzegorz , M. Murphy

We focus on the automated classification of eclipsing binary stars using deep learning methods to handle the vast data generated by large-scale photometric sky surveys. These surveys produce extensive datasets that are impractical for…

太阳与恒星天体物理 · 物理学 2026-03-27 Bedri Keskin , Özgür Baştürk

We have begun a large-scale photometric survey of nearby open clusters and star-forming regions, the Monitor project, aiming to measure time-series photometry for >10,000 cluster members over >10 sq.deg of sky, to find low-mass eclipsing…

天体物理学 · 物理学 2008-11-26 Jonathan Irwin , Mike Irwin , Suzanne Aigrain , Simon Hodgkin , Leslie Hebb , Estelle Moraux

Compressive sensing (CS) has recently emerged as an extremely efficient technology of the wideband spectrum sensing. In compressive spectrum sensing (CSS), it is necessary to know the sparsity or the noise information in advance for…

信号处理 · 电气工程与系统科学 2022-11-15 Liyang Lu , Wenbo Xu , Yue Wang , Zhi Tian