An investigation into the symmetry, or lack thereof, of our universes accelerating expansion

Details An investigation into the symmetry, or lack thereof, of our universes accelerating expansion An investigation into the symmetry, or lack thereof, of our universes accelerating expansion

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..nws.c1001f&link_type=abstract

American Physical Society, Northwest Section Spring 2004 Meeting, 21-22 May, 2004, Pullman, WA. MEETING ID: NWS04, abstract #C1

Astronomy and Astrophysics

Astrophysics

Scientific paper

Is the accelerating expansion of our universe symmetric? Is the acceleration isotropic or anisotropic in space and time? To investigate the extent to which the expansion is isotropic or anisotropic, I will graph distance moduli vs. redshift for high-z SNe Ia observed in different parts of the sky. Such graphs reveal how the recessional velocity changes with distance, and a change in the slope indirectly indicates acceleration. I will compare my graphs with the same graph obtained by the High-Z Supernova Search Team and note any differences in the acceleration of SNe Ia located at similar redshifts. Carroll, Bradley W., and Ostlie, Dale A.; An Introduction to Modern Astrophysics, Addison-Weslery Publishing Company, Inc. 1996. Freedman, Roger A., and Kaufmann III, William J.; Universe, W.H Freeman and Company, 2002. http://cfa-www.harvard.edu/cfa/oir/Research/supernova/HighZ.html

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