The NICMOS Snapshot Survey of Nearby Galaxies
Abstract
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.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- September 1999
- DOI:
- 10.1086/313253
- arXiv:
- arXiv:astro-ph/9903307
- Bibcode:
- 1999ApJS..124...95B
- Keywords:
-
- GALAXIES: NUCLEI;
- GALAXIES: STARBURST;
- GALAXIES: STATISTICS;
- GALAXIES: STRUCTURE;
- INFRARED: GALAXIES;
- INFRARED: ISM: LINES AND BANDS;
- Galaxies: Nuclei;
- Galaxies: Starburst;
- Galaxies: Statistics;
- Galaxies: Structure;
- Infrared: Galaxies;
- Infrared: ISM: Lines and Bands;
- Astrophysics
- E-Print:
- 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