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The Transiting Exoplanet Survey Satellite (TESS) mission measured light from stars in ~75% of the sky throughout its two year primary mission, resulting in millions of TESS 30-minute cadence light curves to analyze in the search for…

The growing number of exoplanet discoveries and advances in machine learning techniques have opened new avenues for exploring and understanding the characteristics of worlds beyond our Solar System. In this study, we employ efficient…

地球与行星天体物理 · 物理学 2023-08-29 Mahdiyar Mousavi-Sadr , Davood M. Jassur , Ghassem Gozaliasl

Many moons have been detected around planets in our Solar System, but none has been detected unambiguously around any of the confirmed extrasolar planets. We test the feasibility of a supervised convolutional neural network to classify…

地球与行星天体物理 · 物理学 2020-08-12 Rasha Alshehhi , Kai Rodenbeck , Laurent Gizon , Katepalli R. Sreenivasan

We present an image classification algorithm using deep learning convolutional neural network architecture, which classifies the morphologies of eclipsing binary systems based on their light curves. The algorithm trains the machine with…

太阳与恒星天体物理 · 物理学 2023-06-06 Burak Ulas

Deep neural networks have emerged as very successful tools for image restoration and reconstruction tasks. These networks are often trained end-to-end to directly reconstruct an image from a noisy or corrupted measurement of that image. To…

图像与视频处理 · 电气工程与系统科学 2021-06-30 Zalan Fabian , Reinhard Heckel , Mahdi Soltanolkotabi

Deep neural networks (DNNs) allow digital receivers to learn to operate in complex environments. To do so, DNNs should preferably be trained using large labeled data sets with a similar statistical relationship as the one under which they…

信息论 · 计算机科学 2022-09-07 Tomer Raviv , Nir Shlezinger

Direct imaging of exoplanets requires to separate the background noise from the exoplanet signals. Statistical methods have been recently proposed to avoid subtracting any signal of interest as opposed to initial self-subtracting methods…

地球与行星天体物理 · 物理学 2024-12-02 Hadrien Cambazard , Nicolas Catusse , A. Chomez , A. -M. Lagrange

Raw light curve data from exoplanet transits is too complex to naively apply traditional outlier detection methods. We propose an architecture which estimates a latent representation of both the main transit and residual deviations with a…

机器学习 · 计算机科学 2021-11-17 Christoph J. Hönes , Benjamin Kurt Miller , Ana M. Heras , Bernard H. Foing

Due to their extremely small luminosity compared to the stars they orbit, planets outside our own Solar System are extraordinarily difficult to detect directly in optical light. Careful photometric monitoring of distant stars, however, can…

Deep learning and data-driven approaches have shown great potential in scientific domains. The promise of data-driven techniques relies on the availability of a large volume of high-quality training datasets. Due to the high cost of…

机器学习 · 计算机科学 2022-02-08 Yuxin Yang , Xitong Zhang , Qiang Guan , Youzuo Lin

A significant degree of misclassification of variable stars through the application of machine learning methods to survey data motivates a search for more reliable and accurate machine learning procedures, especially in light of the very…

太阳与恒星天体物理 · 物理学 2019-06-18 Refilwe Kgoadi , Chris Engelbrecht , Ian Whittingham , Andrew Tkachenko

Exoplanet atmospheric modeling is advancing from chemically diverse one-dimensional (1D) models to three-dimensional (3D) global circulation models (GCMs), which are crucial for interpreting observations from facilities like the James Webb…

地球与行星天体物理 · 物理学 2024-12-06 A. Lira-Barria , J. N. Harvey , T. Konings , R. Baeyens , C. Henríquez , L. Decin , O. Venot , R. Veillet

Due to the latest advances in technology, telescopes with significant sky coverage will produce millions of astronomical alerts per night that must be classified both rapidly and automatically. Currently, classification consists of…

天体物理仪器与方法 · 物理学 2022-08-17 Germán García-Jara , Pavlos Protopapas , Pablo A. Estévez

Optimization of image transformation functions for the purpose of data augmentation has been intensively studied. In particular, adversarial data augmentation strategies, which search augmentation maximizing task loss, show significant…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Teppei Suzuki

Light curves produced by wide-field exoplanet transit surveys such as CoRoT, Kepler, and TESS are affected by sensor-wide systematic noise which is correlated both spatiotemporally and with other instrumental parameters such as photometric…

地球与行星天体物理 · 物理学 2023-12-05 Jamila Taaki , Athol Kemball , Farzad Kamalabadi

Deep learning methods are used on spectroscopic data to predict drug content in tablets from near infrared (NIR) spectra. Using convolutional neural networks (CNNs), features are ex- tracted from the spectroscopic data. Extended…

机器学习 · 计算机科学 2017-10-06 Esben Jannik Bjerrum , Mads Glahder , Thomas Skov

The exoplanet archive is an incredible resource of information on the properties of discovered extrasolar planets, but statistical analysis has been limited by the number of missing values. One of the most informative bulk properties is…

地球与行星天体物理 · 物理学 2024-10-14 Florian Lalande , Elizabeth Tasker , Kenji Doya

The measurement of exoplanet masses using the radial velocity (RV) technique is currently limited by stellar activity, which introduces quasiperiodic variability signals that must be modeled and removed to enhance the sensitivity of the RV…

Transits of habitable planets around solar-like stars are expected to be shallow, and to have long periods, which means low information content. The current bottleneck in the detection of such transits is caused in large part by the…

天体物理仪器与方法 · 物理学 2018-03-28 Shay Zucker , Raja Giryes

Time-domain astronomy is progressing rapidly with the ongoing and upcoming large-scale photometric sky surveys led by the Vera C. Rubin Observatory project (LSST). Billions of variable sources call for better automatic classification…

天体物理仪器与方法 · 物理学 2023-09-26 Zihan Kang , Yanxia Zhang , Jingyi Zhang , Changhua Li , Minzhi Kong , Yongheng Zhao , Xue-Bing Wu