1999/06/29 by Shoko Sakai, Laura Ferrarese, Robert C. Kennicutt +21 · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Cepheid variable #Cosmic distance ladder #Distance modulus #Extinction (optical mineralogy) #Galaxies: Formation, Evolution, Phenomena #Galaxy #History and Developments in Astronomy #Hubble sequence #Hubble space telescope #Large Magellanic Cloud #Stars #Variable star #astro-ph
paper · pdf · doi:10.1086/307776
22 pages. A gzipped tar file containing 16 figures can be obtained from http://www.ipac.caltech.edu/H0kp/n3319/n3319.html
arxiv created 1999/06/29 · openalex publication_date 1999/10/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The distance to NGC 3319 has been determined from Cepheid variable stars as part of the Hubble Space Telescope Key Project on the Extragalactic Distance Scale. Thirteen and four epochs of observations, using filters F555W ( V ) and F814W ( I ), respectively, were made with the Wide Field Planetary Camera 2. Thirty-three Cepheid variables between periods of 8 and 47 days were discovered. Adopting a Large Magellanic Cloud distance modulus of 18.50 ± 0.10 mag and extinction of E ( V - I ) = 0.13 mag, a true reddening-corrected distance modulus (based on an analysis employing the ALLFRAME software package) of 30.78 ± 0.14 (random) ± 0.10 (systematic) mag and the extinction of E ( V - I ) = 0.06 mag were determined for NGC 3319. This galaxy is the last galaxy observed for the HST H 0 Key Project.