Results 1 to 10 of about 168,817 (265)
Spectroscopic Orbits of Subsystems in Multiple Stars. X (Summary)
The Astronomical Journal, 2023 Results of a large program of spectroscopic monitoring of nearby solar-type stellar hierarchical systems using the CHIRON echelle spectrograph at the 1.5 m telescope are summarized.
Andrei Tokovinin
doaj +1 more source
Incremental Attribute Reduction Algorithm Based on Binary Discernibility Matrix [PDF]
Jisuanji gongcheng, 2017 Incremental attribute reduction algorithm is one of the important research contents in the area of dyanmic data mining.To reduce the storage space of binary discernibility matrix,and by combining the advantages of the binary discernibility matrix that it
DING Mianwei,ZHANG Tengfei,MA Fumin
doaj +1 more source
Binary Artificial Immune Algorithm for Adaptive Visual Detection
IEEE Access, 2018 A visual model plays an important role in developing an efficient and robust visual tracker. The visual cues employed in the state-of-the-art models are usually predefined and fixed for all the tested videos.
Wei Gao +6 more
doaj +1 more source
Binary image steganography method based on layered embedding
网络与信息安全学报, 2021 A non-additive distortion binary image steganography method was proposed which divided the cover image into two sub cover images, updated the distortion through delivering influence factor, and used the minimizing distortion codes to achieve message ...
Yuxiang CHENG +3 more
doaj +3 more sources
Orbits, masses and dynamical parallaxes of 12 visual binary systems [PDF]
Serbian Astronomical Journal, 2003 In this paper the preliminary orbital elements are presented for the following double stars: WDS 00153+4412 = A 1256 AB, WDS 00470+2315 = HU 413, WDS 00520+3154 = A 924, WDS 01036+6341 = MLR 87, WDS 01131+2942 = A 1260, WDS 01158+0947 = A 2102, WDS 01200-
Olević Dragomir M. +3 more
doaj +1 more source
Statistical Analysis of a Comprehensive List of Visual Binaries
Open Astronomy, 2015 Visual binary stars are the most abundant class of observed binaries. The most comprehensive list of data on visual binaries compiled recently by cross-matching the largest catalogues of visual binaries allowed a statistical investigation of ...
Kovaleva D. +4 more
doaj +1 more source
Performance of the SOAR Speckle Instrument
The Astronomical JournalThe High Resolution Camera (HRCam) speckle imager at the 4.1 m Southern Astrophysical Research telescope is a highly productive instrument that has accumulated about 40K observations to date.
Andrei Tokovinin
doaj +1 more source
Visual Binary Stars: Data to Investigate Formation of Binaries
Open Astronomy, 2016 Statistics of orbital parameters of binary stars as well as statistics of their physical characteristics bear traces of star formation history. However, statistical investigations of binaries are complicated by incomplete or missing observational data ...
Kovaleva D. +3 more
doaj +1 more source
Visual Binaries: Cross-Matching and Compiling of a Comprehensive List
Open Astronomy, 2015 Visual binary stars make up the largest set among observed types of binaries (currently more than 110 000 systems are known containing more than 230 000 components).
Isaeva A. A. +2 more
doaj +1 more source
Spectroscopic Orbits of Subsystems in Multiple Stars. XI
The Astronomical JournalAdding to the large radial velocity survey of nearby solar-type stars (summary in Tokovinin, 2023a), spectroscopic orbits are determined for four hierarchical systems: HIP 49442 (inner and outer periods of 164.55 days and 34 yr, respectively), HIP 55691 (
Andrei Tokovinin
doaj +1 more source