1999/03/31 by T. Boeker, Torsten Böker, Daniela Calzetti +22 · 6 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/313253
published as Astrophys.J.Suppl. 124 (1999) 95-126 · Original contained error in flux calibration. Table 1 now has correct Paschen Alpha fluxes. 14 pages LaTeX with JPEG and PS figures. Also available at http://icarus.stsci.edu/~boeker/publications.html
openalex publication_date 1999/09/01 · arxiv created 1999/09/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We present "snapshot" observations with the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) on board the Hubble Space Telescope ( HST ) of 94 nearby galaxies from the Revised Shapley Ames Catalog. Images with 0 2 resolution were obtained in two filters, a broadband continuum filter (F160W, roughly equivalent to the H band) and a narrowband filter centered on the Paα line (F187N or F190N, depending on the galaxy redshift) with the 51 '' × 51 '' field of view of the NICMOS camera 3. A first-order continuum subtraction is performed, and the resulting line maps and integrated Paα line fluxes are presented. A statistical analysis indicates that the average Paα surface brightness in the central regions is highest in early-type (Sa-Sb) spirals.