Relativistic material reference systems [PDF]
Physical Review D, 1996 18 pages ...
Brown, J. David, Marolf, Donald
openaire +5 more sources
Independent analysis of μδ data of ILS and INDLS catalogs to obtain the spin of the bright Gaia DR2 reference frame [PDF]
Serbian Astronomical Journal, 2021 The Gaia DR2 reference frame should be without relative rotation to the quasars (QSOs) and consistent with the International Celestial Reference System (ICRS).
Damljanović G. +2 more
doaj +1 more source
Frequency Transition From Weak to Strong Turbulence in the Solar Wind
Frontiers in Astronomy and Space Sciences, 2022 During a specific time window while approaching the Sun, the longitudinal speed of Parker Solar Probe matches that of the Sun’s rotation. The spacecraft therefore co-rotates with the Sun, and as long as it does so, it is immersed in the solar-wind plasma
Daniele Telloni
doaj +1 more source
Model-driven Enterprise Systems Configuration [PDF]
, 2006 Enterprise Systems potentially lead to significant efficiency gains but require a well-conducted configuration process. A promising idea to manage and simplify the configuration process is based on the premise of using reference models for this task. Our
Alcántara +21 more
core +19 more sources
Photographic zenith tubes observations to improve HIPPARCOS proper motion in declination of some stars [PDF]
Serbian Astronomical Journal, 2005 A procedure of calculation and results of an attempt to improve proper motions in declination for some HIPPARCOS stars are presented. A long series of optical observations of these stars observed with Photographic Zenith Tubes (PZT) are used.
Damljanović Goran M.
doaj +1 more source
Corrections to the Hipparcos proper motions in declination for 807 stars [PDF]
Serbian Astronomical Journal, 2008 We used the data on latitude variations obtained from observations with 10 classical photographic zenith tubes (PZT) in order to improve the Hipparcos proper motions in declinations µδ for 807 stars.
Damljanović G., Pejović N.
doaj +3 more sources
Earth orientation and its excitations by atmosphere, oceans, and geomagnetic jerks [PDF]
Serbian Astronomical Journal, 2015 In addition to torques exerted by the Moon, Sun, and planets, changes of the Earth orientation parameters (EOP) are known to be caused also by excitations by the atmosphere and oceans.
Vondrák J., Ron C.
doaj +1 more source
Spherical trigonometry of the projected baseline angle [PDF]
Serbian Astronomical Journal, 2008 The basic vector geometry of a stellar interferometer with two telescopes is defined by the right triangle of (i) the baseline vector between the telescopes, of (ii) the delay vector which points to the star, and of (iii) the projected baseline vector in
Mathar R.J.
doaj +3 more sources
Systems of Reference for Personality Structure: Peseschkian & Zubiri on Systems of Reference [PDF]
The Global Psychotherapist, 2023 The Spanish philosopher, Xavier Zubiri, wrote a major work titled Sentient Intelligence wherein he analyzes the human act of intellective knowing.
Theodore A. Cope
doaj +1 more source
Astrometry test of MSCRED IRAF software package [PDF]
Serbian Astronomical Journal, 2005 Astrometric properties of images obtained using MSCRED IRAF software package are investigated. CCD observations of M35 open cluster were taken in an observation run between October 10 and 17, 2004 at Belogradchick Observatory (Bulgaria) using the 60cm ...
Popescu R. +3 more
doaj +1 more source