Astronomy and Astrophysics – Astronomy
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982natur.297..191h&link_type=abstract
Nature, vol. 297, May 20, 1982, p. 191-196.
Astronomy and Astrophysics
Astronomy
81
Anisotropy, Cosmology, Local Group (Astronomy), Solar Velocity, Spiral Galaxies, Stellar Motions, Universe, Background Radiation, Density Distribution, H Lines, Microwave Emission, Radio Galaxies, Red Shift, Velocity Distribution, Virgo Galactic Cluster
Scientific paper
H I observations of 84 nearby Sbc spiral galaxies lying in the redshift range 1,000-5,500 km/sec have been used to determine the motion of the sun and the Local Group of galaxies relative to the backdrop of galaxies extending out to 70 Mpc. This study yields a Local Group velocity of 436 plus or minus 55 km/sec towards l equals 264 plus or minus 18 deg, b equals 45 plus or minus 12 deg, in close agreement with the value inferred from the dipole anisotropy of the 3 K cosmic microwave background. The agreement shows that most of the dipole anisotropy is locally induced and is not an intrinsic property of the universe as has been implied. The component of the Local Group motion in the direction of the Virgo cluster is 410 plus or minus 55 km/sec, a value similar to that derived recently by independent methods. This implies that the local value of the density of the universe is 0.15-0.50 of that required to close the universe.
Davies Rhodri D.
Hart L.
No associations
LandOfFree
Motion of the Local Group of galaxies and isotropy of the universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Motion of the Local Group of galaxies and isotropy of the universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion of the Local Group of galaxies and isotropy of the universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1101602