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相关论文: Identification and Classification of Exoplanets Us…

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Most existing star-galaxy classifiers depend on the reduced information from catalogs, necessitating careful data processing and feature extraction. In this study, we employ a supervised machine learning method (GoogLeNet) to automatically…

星系天体物理 · 物理学 2024-09-23 Shiliang Zhang , Guanwen Fang , Jie Song , Ran Li , Yizhou Gu , Zesen Lin , Chichun Zhou , Yao Dai , Xu Kong

The search for exoplanets is an active field in astronomy, with direct imaging as one of the most challenging methods due to faint exoplanet signals buried within stronger residual starlight. Successful detection requires advanced image…

天体物理仪器与方法 · 物理学 2025-03-24 Théo Bodrito , Olivier Flasseur , Julien Mairal , Jean Ponce , Maud Langlois , Anne-Marie Lagrange

Future space telescopes may be able to directly image $\sim$10 - 100 planets with sizes and orbits consistent with habitable surface conditions ("exo-Earth candidates" or EECs), but observers will face difficulty in distinguishing these…

地球与行星天体物理 · 物理学 2020-02-27 Alex Bixel , Dániel Apai

In this work, a discriminatively learned CNN embedding is proposed for remote sensing image scene classification. Our proposed siamese network simultaneously computes the classification loss function and the metric learning loss function of…

计算机视觉与模式识别 · 计算机科学 2019-12-03 Wen Wang , Lijun Du , Yinxing Gao , Yanzhou Su , Feng Wang , Jian Cheng

Detection of a planetary ring of exoplanets remains as one of the most attractive but challenging goals in the field. We present a methodology of a systematic search for exoplanetary rings via transit photometry of long-period planets. The…

地球与行星天体物理 · 物理学 2017-04-05 Masataka Aizawa , Sho Uehara , Kento Masuda , Hajime Kawahara , Yasushi Suto

Radio wavelength astrometry of stars and other objects has a long and productive history. The use of that technique to determine whether stars have planets around them would cover a nearly unique part of the parameter space for detection of…

地球与行星天体物理 · 物理学 2018-10-22 Bryan J. Butler , Brenda C. Matthews

We propose Genesis, a one-armed simplified Convolutional Neural Network (CNN)for exoplanet detection, and compare it to the more complex, two-armed CNN called Astronet. Furthermore, we examine how Monte Carlo cross-validation affects the…

计算机视觉与模式识别 · 计算机科学 2021-05-14 Koko Visser , Bas Bosma , Eric Postma

NASA's Kepler Space Telescope has collected high-precision, high-cadence time series photometry on 781,590 unique postage-stamp targets across 21 different fields of view. These observations have already yielded 2,496 scientific…

Recently, Odrzywolek and Rafelski (arXiv:1612.03556) have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using…

天体物理仪器与方法 · 物理学 2018-08-08 Soham Kulkarni , Shantanu Desai

Observations of bright protoplanetary disks often show annular gaps in their dust emission. One interpretation of these gaps is disk-planet interaction. If so, fitting models of planetary gaps to observed protoplanetary disk gaps can reveal…

地球与行星天体物理 · 物理学 2020-09-09 Sayantan Auddy , Min-Kai Lin

This paper presents an innovative deep learning pipeline which estimates the relative pose of a spacecraft by incorporating the temporal information from a rendezvous sequence. It leverages the performance of long short-term memory (LSTM)…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Duarte Rondao , Nabil Aouf , Mark A. Richardson

Direct imaging of exoplanets involves the extraction of very faint signals from highly noisy data sets, with noise that often exhibits significant spatial, spectral and temporal correlations. As a results, a large number of post-processing…

天体物理仪器与方法 · 物理学 2015-05-26 Dmitry Savransky

When a star is described as a spectral class G2V, we know its approximate mass, temperature, age, and size. At more than 5,700 exoplanets discovered, it is a natural developmental step to establish a classification for them, such as for…

地球与行星天体物理 · 物理学 2024-09-17 E. Plávalová , A. Rosaev

The Kilodegree Extremely Little Telescope (KELT) survey is a ground-based program designed to search for transiting exoplanets orbiting relatively bright stars. To achieve this, the KELT Science Team operates two planets facilities -…

地球与行星天体物理 · 物理学 2016-05-10 Jack Soutter , Jonti Horner , Joshua Pepper

Photometry of stars from the K2 extension of NASA's Kepler mission is afflicted by systematic effects caused by small (few-pixel) drifts in the telescope pointing and other spacecraft issues. We present a method for searching K2 light…

地球与行星天体物理 · 物理学 2015-06-03 Daniel Foreman-Mackey , Benjamin T. Montet , David W. Hogg , Timothy D. Morton , Dun Wang , Bernhard Schölkopf

The Kepler mission has discovered over 2500 exoplanet candidates in the first two years of spacecraft data, with approximately 40% of them in candidate multi-planet systems. The high rate of multiplicity combined with the low rate of…

With Deep Learning Image Classification becoming more powerful each year, it is apparent that its introduction to disaster response will increase the efficiency that responders can work with. Using several Neural Network Models, including…

计算机视觉与模式识别 · 计算机科学 2020-05-13 Jianyu Mao , Kiana Harris , Nae-Rong Chang , Caleb Pennell , Yiming Ren

The search for atmospheric biosignatures in Earth-like exoplanets is one of the most pressing challenges in observational astrobiology. Detecting biogenic gases in terrestrial planets requires high-resolution observations and long…

地球与行星天体物理 · 物理学 2025-04-03 David S. Duque-Castaño , Jorge I. Zuluaga , Lauren Flor-Torres

The Doppler technique measures the reflex radial motion of a star induced by the presence of companions and is the most successful method to detect exoplanets. If several planets are present, their signals will appear combined in the radial…

天体物理学 · 物理学 2010-01-06 Guillem Anglada-Escude , Mercedes Lopez-Morales , John E. Chambers

As a major approach to looking for life beyond the Earth, the search for extraterrestrial intelligence (SETI) is committed to detecting technosignatures such as engineered radio signals that are indicative of technologically capable life.…

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