scholarly journals Testing the Surface Brightness Fluctuations Method for Dwarf Elliptical Galaxies in the Centaurus A Group

2000 ◽  
Vol 119 (1) ◽  
pp. 166-176 ◽  
Author(s):  
H. Jerjen ◽  
K. C. Freeman ◽  
B. Binggeli
Keyword(s):  
Surface Brightness ◽  
Elliptical Galaxies ◽  
Surface Brightness Fluctuations ◽  
Dwarf Elliptical Galaxies ◽  
Centaurus A

scholarly journals Surface brightness fluctuation distances for nearby dwarf elliptical galaxies

2001 ◽  
Vol 380 (1) ◽  
pp. 90-101 ◽  
Author(s):  
H. Jerjen ◽  
R. Rekola ◽  
L. Takalo ◽  
M. Coleman ◽  
M. Valtonen
Keyword(s):  
Surface Brightness ◽  
Elliptical Galaxies ◽  
Brightness Fluctuation ◽  
Dwarf Elliptical Galaxies

scholarly journals Near-IR Imaging of Elliptical Galaxies

1995 ◽  
Vol 164 ◽  
pp. 443-443 ◽  
Author(s):  
M.A. Pahre ◽  
S. Djorgovski ◽  
K. Matthews ◽  
D. Shupe ◽  
R. De Carvalho ◽  
...  
Keyword(s):  
Surface Brightness ◽  
Stellar Population ◽  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Fundamental Plane ◽  
Near Ir ◽  
Surface Brightness Fluctuations ◽  
Distance Indicator ◽  
Color Gradients ◽  
Optical Color

We have imaged more than thirty early-type galaxies in the K-band to investigate their stellar populations. Our surface brightness fluctuations (SBF) measurements for the nearest 14 galaxies produce a mean fluctuations magnitude in the K-band of The scatter in the Virgo cluster is small at 0.18 mag, which implies that infrared SBF is potentially a good distance indicator (Pahre & Mould 1994). Inspection of the simple stellar population tracks of Worthey (1994) suggests that a plot of the fluctuation color against broadband color (V – I) might be useful in discriminating between age and metallicity effects in elliptical galaxies. We have measured (r – K) color gradients for the entire sample utilizing three methods, two of them independent of sky-subtraction errors, as found in Sparks & Jørgensen (1993). Our color gradients are consistent with a mean metallicity gradient of 0.14 mag dex−1, which is somewhat smaller than that implied by optical color and line gradients alone, suggesting that age gradients may also be important. Finally, we have constructed an infrared Fundamental Plane (FP) which is consistent with its optical counterpart; continued work will determine if there is a significant change in the tilt of the FP between the optical and infrared.

scholarly journals An Automated Search for Low Surface Brightness Dwarf Elliptical Galaxies

1996 ◽  
Vol 171 ◽  
pp. 423-423
Author(s):  
Z. Morshidi ◽  
R.M. Smith ◽  
J.I. Davies
Keyword(s):  
Surface Brightness ◽  
Elliptical Galaxies ◽  
Low Surface Brightness ◽  
Dwarf Elliptical Galaxies ◽  
East And West ◽  
Automated Technique ◽  
Almost All ◽  
Fornax Cluster ◽  
Automated Search

A new automated technique applied to APM scans of UKSTU photographic plates has been used to search for LSBGs in the Fornax cluster. 92 galaxies, almost all of which were classified by Ferguson (1989) as dwarf ellipticals, were found. Fields to the East and West of the cluster were found to have 46 and 13 LSBGs, respectively, as shown in the figure below (□ are LSBGs, ▲ are brighter galaxies).

scholarly journals Dwarf elliptical galaxies in Centaurus A group: stellar populations in AM 1339-445 and AM 1343-452

2006 ◽  
Vol 448 (3) ◽  
pp. 983-999 ◽  
Author(s):  
M. Rejkuba ◽  
G. S. Da Costa ◽  
H. Jerjen ◽  
M. Zoccali ◽  
B. Binggeli
Keyword(s):  
Stellar Populations ◽  
Elliptical Galaxies ◽  
Dwarf Elliptical Galaxies ◽  
Centaurus A
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