Resolving Systematic Errors in The Extragalactic Distance Scale

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

I will present the results of my Ph.D. Thesis, which has dealt with two widely used extragalactic distance indicators: Cepheids and the Tully-Fisher Relation. My work on Cepheids includes the analysis of HST/NICMOS observations of these variables in galaxies ranging from the Local Group to the Fornax Cluster, to investigate the validity of using a standard Galactic extinction law when correcting the V- and I-band magnitudes of Cepheids in other galaxies. Results indicate that a standard extinction law is indeed appropriate. My work on the Tully-Fisher relation includes a photometric study of its calibrators to provide a self-consistent set of magnitudes at optical and near-infrared wavelengths. The optical data has been used by the HST Key Project on the Extragalactic Distance Scale to determine the value of the Hubble constant via the I-band Tully-Fisher relation. The IR data has been obtained more recently, and should resolve an existing discrepancy in the value of the Hubble constant determined from the H-band Tully-Fisher relation.

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

Resolving Systematic Errors in The Extragalactic Distance Scale 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 Resolving Systematic Errors in The Extragalactic Distance Scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resolving Systematic Errors in The Extragalactic Distance Scale will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1728698

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