2004/12/02 by Anil C. Seth, Julianne J. Dalcanton, Roelof S. de Jong · 84 citations
Physics and Astronomy · #Advanced Camera for Surveys #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Dwarf galaxy #Elliptical galaxy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy group #Hubble space telescope #Large Magellanic Cloud #Physics #Stellar, planetary, and galactic studies #Surface brightness fluctuation #astro-ph
paper · pdf · doi:10.1086/427859
published in The Astronomical Journal 129(3), 1331-1349 (Institute of Physics) · 19 pages ApJ format, accepted for publication in the AJ. A higher resolution copy is available at http://www.astro.washington.edu/seth/papers.html
arxiv created 2004/12/02 · openalex publication_date 2005/03/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the initial results of a Hubble Space Telescope /Advanced Camera for Surveys snapshot survey of 16 nearby, edge-on, late-type galaxies covering a range in distance from 2 to 19 Mpc. The images of these galaxies show significant resolved stellar populations. We derive F606W and F814W photometry for more than 1.2 million stars and present color-magnitude diagrams that show a mixture of young, intermediate, and old stars in each galaxy. In one of the fields we serendipitously detect stars from the Large Magellanic Cloud. We also identify a candidate young dwarf galaxy lying ∼2 kpc above the plane of NGC 4631. For the nearest six galaxies, we derive tip of the red giant branch distances and demonstrate that these galaxies fall on the K -band Tully-Fisher relation established in clusters. From the color of the red giant branch, we also find evidence that these galaxies possess a metal-poor thick-disk or halo population.