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X-ray Emission and Orientation of Selected PF Galaxy Clusters
Tugay, A. V.; Dylda, S. S.; Panko, E. A.
X-ray counterparts for 35 galaxy clusters contained in the PF catalogue of galaxy clusters and groups were found in XMM-Newton archive. 22 ones (all from ACO catalogue) have extended elliptic X-ray haloes appropriate for determination of orientation. Position angles and eccentricities were calculated and compared with cluster orientations optical …
Modern CCD Observations of Selected Minor Planets for the Connection of Dynamic and Kinematic Coordinate Systems
Maigurova, N.; Pomazan, A.
One of the methods of determining the orientation parameters of the dynamic and kinematic coordinate systems is to use of long-term series of ground-based observations of selected asteroids. For achievement of the best accuracy of the link parameters the high precision and uniformly covering the asteroids orbit observations are necessary. The anal…
Modern CCD Observations of Selected Minor Planets for the Connection of Dynamic and Kinematic Coordinate Systems
Maigurova, N.; Pomazan, A.
One of the methods of determining the orientation parameters of the dynamic and kinematic coordinate systems is to use of long-term series of ground-based observations of selected asteroids. For achievement of the best accuracy of the link parameters the high precision and uniformly covering the asteroids orbit observations are necessary. The anal…