Results 31 to 40 of about 3,456,836 (310)
Structurally topological algorithm for star recognition and near-Earth space’ object detection [PDF]
Компьютерная оптика, 2020 When solving a variety of celestial navigation tasks there is a problem of determining parameters of spacecraft motion and onboard primary payload orientation based on the coordinates of registered star images.
I.G. Zhurkin, L.N. Chaban, P.Yu. Orlov
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Detections of Neutron Stars in the Extreme Ultraviolet [PDF]
Annals of the New York Academy of Sciences, 1995 Neutron stars were not expected to be observable in the extreme ultraviolet and hence their detection in this band is a surprise. More important is that EUV observations provide unique new information on these objects. In the accompanying Table 1, I list the neutron stars detected in the EUV with the Extreme Ultraviolet Explorer (EUVE).
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3D Multi-Phase Sub-Pixel PSF Estimation Based on Space Debris Detection System
PhotonicsThe distribution of diffuse spot energy can be used to sensitively evaluate the aberrations and defects of optical systems. Therefore, the objective and quantitative measurement of diffuse spot parameters is an important means to control the detection ...
Fan Bu, Dalei Yao, Yan Wen
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Star Anagram Detection and Classification
Recreational Mathematics MagazineAbstract A star anagram is a rearrangement of the letters of one word to produce another word where no letter retains its original neighbors. These maximally shuffled anagrams are rare, comprising only about 5.7% of anagrams in English.
Jason Parker, Dan Barker
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Detecting Primordial Stars [PDF]
, 2007 [8 pages, 5 figures] Invited Talk, to appear in IMF@50: The Stellar Initial Mass Function Fifty Years Later, eds E. Corbelli, F. Palla, and H. Zinnecker (Dordrecht: Kluwer)
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Detecting axion stars with radio telescopes
Physics Letters B, 2018 When axion stars fly through an astrophysical magnetic background, the axion-to-photon conversion may generate a large electromagnetic radiation power. After including the interference effects of the spacially-extended axion-star source and the macroscopic medium effects, we estimate the radiation power when an axion star meets a neutron star.
Yang Bai, Yuta Hamada
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Physics Letters B, 2021 One of the key challenges of real-time detection and parameter estimation of gravitational waves from compact binary mergers is the computational cost of conventional matched-filtering and Bayesian inference approaches.
Plamen G. Krastev +3 more
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COOLING AND DETECTABILITY OF NEUTRON STARS [PDF]
Canadian Journal of Physics, 1966 Surface properties, temperature effects, cooling behavior, and observability of neutron stars have been studied. For this purpose, the opacity of the surface layers is calculated both for a pure iron and a pure magnesium composition. It is found that the nondegenerate layers are only a few meters thick and in no case exceed 1% of the stellar radius ...
Sachiko Tsuruta, A. G. W. Cameron
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
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Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations
Pediatric Blood &Cancer, EarlyView.ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan +18 more
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