Blue and near-infrared surface photometry of 50 barred and nonbarred spiral galaxies

1985 ◽  
pp. 161-166 ◽  
Author(s):  
B. G. Elmegreen ◽  
D. M. Elmegreen
Keyword(s):  
Near Infrared ◽  
Spiral Galaxies ◽  
Surface Photometry

scholarly journals Bar Properties as a Function of Hubble Type

1996 ◽  
Vol 157 ◽  
pp. 23-29
Author(s):  
Debra Meloy Elmegreen
Keyword(s):  
Surface Brightness ◽  
Near Infrared ◽  
Spiral Galaxies ◽  
Infrared Light ◽  
Surface Photometry ◽  
Optical Surface ◽  
Barred Galaxies ◽  
Additional Information ◽  
Grand Design ◽  
Barred Spiral Galaxies

AbstractPrevious optical surface photometry of barred spiral galaxies revealed that there are two distinct types of bars: large bars tend to have a nearly constant surface brightness (”flat“ bar), while smaller bars tend to have a decreasing surface brightness with a scale length similar to the disk (”exponential“ bar). Statistically, flat bars tend to occur in early Hubble types and exponential bars in later types. Studies of resonances in spirals indicate that flat bars end inside corotation, while exponential bars end between the inner Lindblad and 4:1 resonances. Near-infrared (JHK) surface photometry of bars is presented in order to compare the stellar distributions and bar potentials in flat and exponential barred galaxies. The presence of isophotal twists in some galaxies provides additional information on resonances. The grand design and fiocculent optical structures in the two types of barred galaxies will be compared and contrasted with their near-infrared light distributions.

scholarly journals Near-infrared surface photometry of spiral galaxies. I. The data

1996 ◽  
Vol 117 (3) ◽  
pp. 417-444 ◽  
Author(s):  
Ph. Héraudeau ◽  
F. Simien ◽  
G. A. Mamon
Keyword(s):  
Near Infrared ◽  
Spiral Galaxies ◽  
Surface Photometry

scholarly journals Near-infrared surface photometry of early-type spiral galaxies

1998 ◽  
Vol 130 (1) ◽  
pp. 81-108 ◽  
Author(s):  
G. Moriondo ◽  
C. Giovanardi ◽  
L. K. Hunt
Keyword(s):  
Near Infrared ◽  
Spiral Galaxies ◽  
Surface Photometry ◽  
Early Type

scholarly journals Circumnuclear regions in barred spiral galaxies — I. Near-infrared imaging

2000 ◽  
Vol 317 (2) ◽  
pp. 234-248 ◽  
Author(s):  
D. Pérez-Ramírez ◽  
J. H. Knapen ◽  
R. F. Peletier ◽  
S. Laine ◽  
R. Doyon ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Spiral Galaxies ◽  
Near Infrared Imaging ◽  
Barred Spiral Galaxies
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