Open AccessThe NICMOS Snapshot Survey of Nearby Galaxies
Author(s) -
Torsten Böker,
Daniela Calzetti,
W. B. Sparks,
D. J. Axon,
L. E. Bergeron,
H. Bushouse,
L. Colina,
D. Daou,
Diane Gilmore,
S. T. Holfeltz,
John MacKenty,
Lisa M. Mazzuca,
Bruce M. Monroe,
Joan Najita,
Keith Noll,
A. Nota,
C. Ritchie,
A. Schultz,
M. Sosey,
A. D. Storrs,
A. A. Suchkov
Publication year - 1999
Publication title -
the astrophysical journal supplement series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.546
H-Index - 277
eISSN - 1538-4365
pISSN - 0067-0049
DOI - 10.1086/313253
Subject(s) - physics , galaxy , hubble space telescope , astrophysics , surface brightness , astronomy , redshift , hubble ultra deep field , hubble deep field south , advanced camera for surveys , snapshot (computer storage) , hubble deep field , computer science , operating system
We present ``snapshot'' observations with the NearInfrared Camera andMultiObject Spectrometer (NICMOS) on board the Hubble Space Telescope (HST) of94 nearby galaxies from the Revised Shapley Ames Catalog. Images with 0.2 asresolution were obtained in two filters, a broad-band continuum filter (F160W,roughly equivalent to the H-band) and a narrow band filter centered on thePaschen alpha line (F187N or F190N, depending on the galaxy redshift) with the51x51 as field of view of the NICMOS camera 3. A first-order continuumsubtraction is performed, and the resulting line maps and integrated Paschenalpha line fluxes are presented. A statistical analysis indicates that theaverage Paschen alpha surface brightness {\bf in the central regions} ishighest in early-type (Sa-Sb) spirals.
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