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相关论文: Identification and Classification of Exoplanets Us…

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The method of direct imaging has detected many exoplanets and made important contribution to the field of planet formation. The standard method employs angular differential imaging (ADI) technique, and more ADI image frames could lead to…

地球与行星天体物理 · 物理学 2023-01-12 Pattana Chintarungruangchai , Ing-Guey Jiang , Jun Hashimoto , Yu Komatsu , Mihoko Konishi

Thirteen exo-planets have been discovered using the gravitational microlensing technique (out of which 7 have been published). These planets already demonstrate that super-Earths (with mass up to ~10 Earth masses) beyond the snow line are…

Detecting extreme events in large datasets is a major challenge in climate science research. Current algorithms for extreme event detection are build upon human expertise in defining events based on subjective thresholds of relevant…

计算机视觉与模式识别 · 计算机科学 2016-05-05 Yunjie Liu , Evan Racah , Prabhat , Joaquin Correa , Amir Khosrowshahi , David Lavers , Kenneth Kunkel , Michael Wehner , William Collins

Finding potential life harboring exo-Earths is one of the aims of exoplanetary science. Detecting signatures of life in exoplanets will likely first be accomplished by determining the bulk composition of the planetary atmosphere via…

地球与行星天体物理 · 物理学 2021-02-03 A. Asensio Ramos , E. Pallé

"exoplanet" is a toolkit for probabilistic modeling of astronomical time series data, with a focus on observations of exoplanets, using PyMC3 (Salvatier et al., 2016). PyMC3 is a flexible and high-performance model-building language and…

We study the application of machine learning techniques for the detection of the astrometric signature of dark matter substructure. In this proof of principle a population of dark matter subhalos in the Milky Way will act as lenses for…

宇宙学与河外天体物理 · 物理学 2022-01-05 Kyriakos Vattis , Michael W. Toomey , Savvas M. Koushiappas

The classification of exoplanets has been a longstanding challenge in astronomy, requiring significant computational and observational resources. Traditional methods demand substantial effort, time, and cost, highlighting the need for…

地球与行星天体物理 · 物理学 2025-06-23 Anupma Choudhary , Sohith Bandari , B. S. Kushvah , C. Swastik

The second mission of the NASA Kepler satellite, K2, has collected hundreds of thousands of lightcurves for stars close to the ecliptic plane. This new sample could increase the number of known pulsating stars and then improve our…

太阳与恒星天体物理 · 物理学 2019-06-25 A. Le Saux , L. Bugnet , S. Mathur , S. N. Breton , R. A. Garcia

Cosmologists are facing the problem of the analysis of a huge quantity of data when observing the sky. The methods used in cosmology are, for the most of them, relying on astrophysical models, and thus, for the classification, they usually…

We examine the ability of the Transiting Exoplanet Survey Satellite (TESS) to detect and improve our understanding of planetary systems in the Kepler field. By modeling the expected transits of all confirmed and candidate planets detected…

地球与行星天体物理 · 物理学 2019-05-29 Callista N. Christ , Benjamin T. Montet , Daniel C. Fabrycky

There are several supervised machine learning methods used for the application of automated morphological classification of galaxies; however, there has not yet been a clear comparison of these different methods using imaging data, or a…

For much of human history we have wondered how our solar system formed, and whether there are any other planets like ours around other stars. Only in the last 20 years have we had direct evidence for the existence of exoplanets, with the…

太阳与恒星天体物理 · 物理学 2013-08-26 Jeffrey L. Coughlin

Automated planetary transit detection has become vital to prioritize candidates for expert analysis given the scale of modern telescopic surveys. While current methods for short-period exoplanet detection work effectively due to periodicity…

地球与行星天体物理 · 物理学 2022-11-15 Shreshth A. Malik , Nora L. Eisner , Chris J. Lintott , Yarin Gal

Circumstellar disks play a key role in the understanding of stellar systems. Direct imaging of such extended structures is a challenging task. Current post-processing techniques, first tailored for exoplanets imaging, tend to produce…

天体物理仪器与方法 · 物理学 2019-02-27 Benoît Pairet , Faustine Cantalloube , Laurent Jacques

Machine learning has been successfully applied in varied field but whether it is a viable tool for determining the distance to molecular clouds in the Galaxy is an open question. In the Galaxy, the kinematic distance is commonly employed as…

With the advent of new spectroscopic surveys from ground and space, observing up to hundreds of millions of galaxies, spectra classification will become overwhelming for standard analysis techniques. To prepare for this challenge, we…

星系天体物理 · 物理学 2022-06-08 Fucheng Zhong , Rui Li , Nicola R. Napolitano

In this paper, we develop and explore deep anomaly detection techniques based on the capsule network (CapsNet) for image data. Being able to encoding intrinsic spatial relationship between parts and a whole, CapsNet has been applied as both…

机器学习 · 计算机科学 2019-07-16 Xiaoyan Li , Iluju Kiringa , Tet Yeap , Xiaodan Zhu , Yifeng Li

Microlensing is a proven extrasolar planet search method that has already yielded the detection of four exoplanets. These detections have changed our understanding of planet formation ``beyond the snowline'' by demonstrating that…

天体物理学 · 物理学 2007-05-23 Andrew Gould , B. Scott Gaudi , David P. Bennett

The last decade has witnessed a rapid growth of the field of exoplanet discovery and characterisation. However, several big challenges remain, many of which could be addressed using machine learning methodology. For instance, the most…

Direct imaging of exoplanets is crucial for advancing our understanding of planetary systems beyond our solar system, but it faces significant challenges due to the high contrast between host stars and their planets. Wavefront aberrations…

地球与行星天体物理 · 物理学 2025-01-06 Brandon Y. Feng , Rodrigo Ferrer-Chávez , Aviad Levis , Jason J. Wang , Katherine L. Bouman , William T. Freeman