1997A&AS..124..129P


Query : 1997A&AS..124..129P

1997A&AS..124..129P - Astron. Astrophys., Suppl. Ser., 124, 129-141 (1997/July-0)

Analysis of seven face-on spiral galaxies.

POMPEI E. and NATALI G.

Abstract (from CDS):

We continue in this work the study of nearby spiral galaxies started with NGC 628 (Natali 1992A&A...256...79N, hereafter Paper I). A sample of seven face-on spiral galaxies has been selected to obtain images in the U, B, V, R, I bands using a CCD detector at the 90cm Schmidt telescope at Campo Imperatore Observatory. Surface photometry using a dedicated software is used to derive both the surface brightness radial profiles in each band and the colour indexes. The radial disk scalelengths obtained from the radial profiles show a trend with wavelength which seems to highlight a huge presence of dust in the inner disk zone. For two galaxies of the sample the presence of dust is confirmed by the radial trend of colour indexes. The presence of galactic infall already detected for NGC 628, is confirmed, from the bluish (B-V), also for NGC 3184.

Abstract Copyright:

Journal keyword(s): galaxies, spiral - photometry

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1751 1
2 NGC 1232 EmG 03 09 45.514 -20 34 45.48   10.67 9.87 9.53 10.2 ~ 289 0
3 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 737 0
4 NGC 3423 AGN 10 51 14.3245691976 +05 50 24.158965920   12.1       ~ 176 0
5 NGC 3938 GiG 11 52 49.4335936248 +44 07 14.697085116 10.80 10.90 10.38     ~ 534 1
6 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1853 2
7 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4346 4
8 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2537 2

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