Results 71 to 80 of about 324,439 (295)
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
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
New membership determination and proper motions of NGC 1817. Parametric and non-parametric approach
, 2004 We have calculated proper motions and re-evaluated the membership probabilities of 810 stars in the area of two NGC objects, NGC 1817 and NGC 1807. We have obtained absolute proper motions from 25 plates in the reference system of the Tycho-2 Catalogue ...
Balaguer-Núñez +26 more
core +1 more source
Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
The Proper Motion of Draco II with HST Using Multiple Reference Frames and Methodologies
The Astrophysical JournalWe present proper motion (PM) measurements for Draco II, an ultrafaint dwarf satellite of the Milky Way. These PMs are measured using two epochs of Hubble Space Telescope (HST)/Advanced Camera for Surveys imaging separated by a 7 yr temporal baseline ...
Jack T. Warfield +15 more
doaj +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
, 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.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source