2004/06/30 by Dennis Zaritsky, Jason Harris, Ian B. Thompson +3 · 11 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Astrophysics and Star Formation Studies #Extinction (optical mineralogy) #Large Magellanic Cloud #Line-of-sight #Photometry (optics) #Physics #Population #Sky #Small Magellanic Cloud #Star formation #Stars #Stellar population #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/423910
published as Astron.J. 128 (2004) 1606-1614 · 7 pages (emulateapj), accepted for publication in the Astronomical Journal
arxiv created 2004/06/30 · openalex publication_date 2004/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present our catalog of U , B , V , and I stellar photometry of the central 64 deg 2 area of the Large Magellanic Cloud. Internal and external astrometric and photometric tests using existing optical photometry ( U , B , and V from Massey's bright star catalog and I from the near-infrared sky survey DENIS) are used to confirm our observational uncertainty estimates. We fit stellar atmosphere models to the optical data to check the consistency of the photometry for individual stars across the passbands and to estimate the line-of-sight extinction. Finally, we use the estimated line-of-sight extinctions to produce an extinction map across the Large Magellanic Cloud, confirm the variation of extinction as a function of stellar population, and produce a simple geometric model for the extinction as a function of stellar population.