Results 11 to 20 of about 3,456,836 (310)
ON THE DETECTABILITY OF STAR-PLANET INTERACTION [PDF]
Magnetic (or tidal) interactions between "hot Jupiters" and their host stars can potentially enhance chromospheric and coronal activity. An ideal testbed for investigating this effect is provided by the extreme WASP-18 system, which features a massive (~10 times Jupiter) close-in (~1 day period) transiting planet orbiting a young F6 star. Optical and X-
Miller, Brendan P. +3 more
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Detecting double neutron stars with LISA [PDF]
ABSTRACT We estimate the properties of the double neutron star (DNS) population that will be observable by the planned space-based interferometer Laser Interferometer Space Antenna (LISA). By following the gravitational radiation-driven evolution of DNSs generated from rapid population synthesis of massive binary stars, we estimate that ...
Lau M. Y. M. +5 more
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Design and Simulation of a High-Speed Star Tracker for Direct Optical Feedback Control in ADCS
Star Trackers are often the most accurate instrument in an Attitude Determination and Control Systems, but often present a slow update rate, requiring additional sensor and sensor fusion algorithms to provide a smoother and faster output.
Mikaël Marin, Hyochoong Bang
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Rotational Shearing Interferometer in Detection of the Super-Earth Exoplanets
The astronomers and the general population are fascinated with the problem of exoplanet detection. By far the largest number of detected planets are the so-called Super Earths, relatively cold planets orbiting a large, red giant star, with diameters up ...
Marija Strojnik
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DeepStar: Detecting Starring Characters in Movies [PDF]
Recent advances in the film industry have given rise to exponential growth in movie/drama production and adaptation of the Big Data concept. Automatic identification and classification of movie characters have received tremendous attention from researchers due to its applications in video semantic analysis, video summarization, and personalized video ...
Ijaz Ul Haq +3 more
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Background Influenza A virus (IAV) is a major public health concern, being responsible for the death of approximately half a million people each year.
Biruhalem Taye +5 more
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Ground Testing Strategies for Verifying the Slew Rate Tolerance of Star Trackers
The performance of a star tracker is largely based on the availability of its attitude solution. Several methods exist to assess star tracker availability under both static and dynamic imaging conditions.
Tom Dzamba, John Enright
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Weak Spatial Target Extraction Based on Small-Field Optical System
Compared to wide-field telescopes, small-field detection systems have higher spatial resolution, resulting in stronger detection capabilities and higher positioning accuracy.
Xuguang Zhang +3 more
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Cell Detection with Star-Convex Polygons [PDF]
Automatic detection and segmentation of cells and nuclei in microscopy images is important for many biological applications. Recent successful learning-based approaches include per-pixel cell segmentation with subsequent pixel grouping, or localization of bounding boxes with subsequent shape refinement.
Uwe Schmidt +3 more
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Detection of the Secondary Star in X1822-371 [PDF]
AbstractWe have detected He I absorption from the companion star to X1822–371 and find a lower limit to its K–velocity of 230±50km s−1. We interpret the He I as arising on the X-ray heated inner face of the companion star.
E. T. Harlaftis, P. A. Charles, K. Horne
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