Local Group Dynamics with GAIA

2002 ◽  
Vol 2 ◽  
pp. 305-311
Author(s):  
R. Ibata
Keyword(s):  
1999 ◽  
Vol 192 ◽  
pp. 39-50 ◽  
Author(s):  
D. Lynden-Bell

The distance from the Local Group to the ‘sphere’ of small galaxies that no longer expand with the Universe determines the time since the Big Bang, t x M1/2, where M is the mass of the Local Group. Adopting Feast's new distance scale, this distance is found to be 1.35 ± 0.1 Mpc. The velocity of approach and the distance to M31 give a different combination of t and M, thus both can be deduced. We find the time since the Big Bang and The importance of accurate distances for such results is stressed. If all distances are revised by a factor λ then both t and M change by that factor.


1999 ◽  
Vol 522 (2) ◽  
pp. 793-801 ◽  
Author(s):  
G. Steigman ◽  
I. Tkachev
Keyword(s):  

2016 ◽  
Vol 832 (2) ◽  
pp. L23 ◽  
Author(s):  
Roeland P. van der Marel ◽  
Johannes Sahlmann

2000 ◽  
Vol 313 (1) ◽  
pp. 8-12 ◽  
Author(s):  
M. Plionis ◽  
S. Basilakos ◽  
M. Rowan-Robinson ◽  
S. J. Maddox ◽  
S. J. Oliver ◽  
...  
Keyword(s):  

1971 ◽  
Vol 16 (11) ◽  
pp. 738-739
Author(s):  
ROBERT HELMREICH
Keyword(s):  

1976 ◽  
Vol 21 (8) ◽  
pp. 603-603
Author(s):  
EDWARD E. JONES

1983 ◽  
Vol 28 (9) ◽  
pp. 674-675
Author(s):  
David L. Bradford
Keyword(s):  

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