A new Determination of the Hubble Parameter using Galaxy Linear Diameters

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

12

Distance Scale, Galaxies: Distances And Redshifts, Galaxies: Spiral

Scientific paper

Measurements of the linear diameters of 12 nearby spiral galaxies, with Hubble types similar to that of the Milky Way and distances determined from primary indicators, suggest that the Milky Way and M3 1 are in the middle of the range of sizes for such galaxies. By comparing the measured linear diameters of these nearby systems with the inferred diameters of a sample of more than 1300 spirals with known redshifts, we conclude that the most likely value of the Hubble Parameter lies in the range 50-55 km s-1 Mpc-1. By considering the distribution of the order statistics of the nearby sample, we conclude that values of H0> 80 km s-1 Mpc-1 are excluded at the 1 per cent level, based largely on the presence of two galaxies with linear diameters of D25≍60 kpc in the nearby sample provided that these nearby spirals are a fair sample from the global distribution of linear diameters deduced from the more distant sample.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A new Determination of the Hubble Parameter using Galaxy Linear Diameters 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 A new Determination of the Hubble Parameter using Galaxy Linear Diameters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new Determination of the Hubble Parameter using Galaxy Linear Diameters will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1178694

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.