STScI Preprint #1337

The NICMOS Snapshot Survey of Nearby Galaxies

Authors: T. Böker,^1,2 D. Calzetti,¹ W. Sparks,¹ D. Axon,^1,2 L. E. Bergeron,¹ H. Bushouse,¹ L. Colina,^1,2 D. Daou,¹ D. Gilmore,¹ S. Holfeltz,¹ J. MacKenty,¹ L. Mazzuca,¹ B. Monroe,¹ J. Najita,¹ K. Noll,¹ A. Nota,^1,2 C. Ritchie,¹ A. Schultz,¹ M. Sosey,¹ A. Storrs,¹ A. Suchkov,¹ the STScI NICMOS group

We present "snapshot" observations with the NearInfrared Camera and MultiObject 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 broad-band continuum filter (F160W, roughly equivalent to the H-band) and a narrow band filter centered on the Pa 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 Pa line fluxes are presented. A statistical analysis indicates that the average Pa surface brightness in the central regions is highest in early-type (Sa-Sb) spirals.

Status:: Appeared in: The Astrophysical Journal, Supplement Series
Affiliations:: ¹ Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, U.S.A.
² Affiliated with the Astrophysics Division, Space Science Department, European Space Agency

toolan@stsci.edu
Last updated, July 14, 2000