Table 2: Angular rates of rotation estimated for 4 different sets of HCRF proper motions referred to the ICRF. X, Y, Z denote the components of solar motion in equatorial coordinates, "P'' is Oort's constant related to differential galactic rotation, "d'' stands for stellar distance, "elim'' for elimination of residuals and "no'' refers to the number of HCRF stars.
  Case 1 Case 2 Case 3 Case 4
  d >100 pc d > 100 pc d > 100 pc d > 100 pc
  elim: none elim: >10 mas/yr elim: >8 mas/yr elim: >5 mas/yr
  no: 78741 no: 28084 no: 22204 no: 12750
 X   [km s-1] $1.71 \pm 0.10$ $1.37 \pm 0.04$     $1.39 \pm 0.04$     $1.47 \pm 0.04$    
 Y   [km s-1] $-17.57 \pm 0.11$ $-17.52 \pm 0.05$     $-17.44 \pm 0.05$     $-17.45 \pm 0.04$    
 Z   [km s-1] $10.43 \pm 0.10$ $9.00 \pm 0.05$     $9.25 \pm 0.04$     $9.72 \pm 0.04$    
 $\omega_x$ [mas/yr] $2.09 \pm 0.10$ $2.23 \pm 0.03$     $2.25 \pm 0.03$     $2.27 \pm 0.03$    
 $\omega_y$ [mas/yr] $0.83 \pm 0.10$ $0.64 \pm 0.03$     $0.62 \pm 0.03$     $0.63 \pm 0.03$    
 $\omega_z$ [mas/yr] $-1.82 \pm 0.13$ $-1.91 \pm 0.04$     $-1.86 \pm 0.04$     $-1.78 \pm 0.03$    
 P   [mas/yr] $2.82 \pm 0.14$ $2.61 \pm 0.04$     $2.56 \pm 0.04$     $2.68 \pm 0.03$    
Error of unit  30.9  6.0  5.0  3.4
  weight        


Source LaTeX | All tables | In the text

Article Contents
1 Introduction
2 Formulation of the problem
3 Assessment of the spin matrix
4 Conclusions
References
List of tables