Results 71 to 80 of about 323,555 (299)
STARS WITH HIGH PROPER MOTIONS IN THE MODERN CATALOGS OF THE CDS DATABASE
Odessa Astronomical Publications, 2016 Stars with high proper motions, for the most part, are objects located in the solar neighborhood within 100 parsecs. These stars are important targets for a wide range of astrophysical problems, but the accuracy of the results depends on the completeness
V. F. Kryuchkovskiy, N. V. Maigurova
doaj +1 more source
Absolute proper motions for the calibration of the Hipparcos proper motion system [PDF]
Astronomy and Astrophysics Supplement Series, 1997 Absolute proper motions of 48 Hipparcos stars in nine elds distributed over the northern hemisphere are presented. The proper motions have been recently used as part of the Bonn program for the extragalactic link of the Hipparcos proper motion system. We describe methods which have led to the absolute proper motions of the major part of the Bonn elds ...
M. Geffert +3 more
openaire +1 more source
Arthritis Care &Research, EarlyView.Objective A patient‐centered approach for chronic disease management, including systemic lupus erythematosus (SLE), aligns treatment with patients’ values and preferences, leading to improved outcomes. This paper summarizes how patient experiences, perspectives, and priorities informed the American College of Rheumatology (ACR) 2024 Lupus Nephritis (LN)
Shivani Garg +20 more
wiley +1 more source
COMPARATIVE ANALYSIS OF PROPER MOTIONS OF STARS IN OPEN CLUSTERS BY USING VO TOOLS
Odessa Astronomical Publications, 2014 Astrometric catalogues such as Tycho2, Mobitel1, CSOCA, XPM, PM2000, SDSS-DR9 were used for cross identification of stars, visualization of proper motions and further data processing by using available Virtual Observatory (VO) Tools: cross-match ...
A. Mazhaev, Yu. Protsyuk
doaj +1 more source
PPM-Extended (PPMX) - a catalogue of positions and proper motions
, 2008 Aims: We build a catalogue PPM-Extended (PPMX) on the ICRS system which is complete down to a well-defined limiting magnitude and contains the best presently available proper motions to be suited for kinematical studies in the Galaxy.
Kharchenko, N. V. +5 more
core +1 more source
Current Tracking Adaptive Control of Brushless DC Motors
International Journal of Adaptive Control and Signal Processing, EarlyView.In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García +3 more
wiley +1 more source
The Future of Astrometry in Space
Frontiers in Astronomy and Space Sciences, 2018 This contribution focuses on the importance of astrometry and on its future developments. Over the centuries astrometry has greatly contributed to the advance of the knowledge of the Universe.
Antonella Vallenari
doaj +1 more source
, 2018 We present a catalog of relative proper motions for 368,787 stars in the 30 Doradus region of the Large Magellanic Cloud (LMC), based on a dedicated two-epoch survey with the Hubble Space Telescope (HST) and supplemented with proper motions from our ...
Bedin, L. R. +14 more
core +1 more source
Parsec‐Scale Blazar Monitoring: Proper Motions [PDF]
The Astrophysical Journal, 2001 27 pages, 37 figures, uses emulateapj5.sty (included), ApJ in Press; very minor revisions to original ...
Homan, D. C. +6 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat +6 more
wiley +1 more source