The Masses of Dwarf Elliptical Galaxies: First Results from an ESO Large Program

2006 ◽  
pp. 56-59
Author(s):  
H. Dejonghe ◽  
S. De Rijcke ◽  
G. Hau ◽  
W. W. Zeilinger
Keyword(s):  
Elliptical Galaxies ◽  
Large Program ◽  
First Results ◽  
Dwarf Elliptical Galaxies ◽  
The Masses

scholarly journals Dwarf Elliptical Galaxies in the Cena and Sculptor Groups

1998 ◽  
Vol 11 (1) ◽  
pp. 107-108
Author(s):  
H. Jerjen ◽  
K.C. Freeman ◽  
B. Binggeli
Keyword(s):  
Dwarf Galaxies ◽  
Dwarf Galaxy ◽  
Elliptical Galaxies ◽  
Large Program ◽  
Irregular Galaxies ◽  
First Results ◽  
Complete Survey ◽  
Group Members ◽  
Dwarf Elliptical Galaxies ◽  
Dwarf Irregular Galaxies

Côté (1995) surveyed the nearby Centaurus A (Cen A) and Sculptor (Sci) group regions in the search for gas-rich, dwarf irregular galaxies (Irr) which are associated with these galaxy aggregates. 36 Irrs have been found and confirmed as new group members via 21cm/Hα redshifts. In finding this large number of Irrs, the question rises whether systems from the other dwarf galaxy family, the gas-poor dwarf ellipticals (dE), also exist in the two groups. So far nothing is known about dE membership but taking into account the morphology-density relation for dwarfs (Binggeli et al. 1990) a number ratio Irr/dE≈ 1 - 2 would be expected. Prompted by these “missing” dEs we started a large program to identify and study dEs in Cen A and Sci. The main scientific goals are (1) to find dE candidates and to establish group membership via velocity or distance and (2) to estimate the luminosity function (LF) of dwarf galaxies to the faintest possible luminosities. For the two groups, being respectively at a mean distance of 4.0 Mpc and 2.5 Mpc, we will be able to reach dwarf galaxies 4-5 magnitudes fainter than in the previous studies in the Virgo and Fornax clusters and the five groups Leo I, Dorado, NGC1400, NGC5044, and Antlia (Sandage et al. 1985, Ferguson &: Sandage 1990). We briefly outline here first results from the CenA group. All details about the complete survey including Scl will be presented in Jerjen et al. (1997)

scholarly journals Embedded disks in Fornax dwarf elliptical galaxies

2003 ◽  
Vol 400 (1) ◽  
pp. 119-125 ◽  
Author(s):  
S. De Rijcke ◽  
H. Dejonghe ◽  
W. W. Zeilinger ◽  
G. K. T. Hau
Keyword(s):  
Elliptical Galaxies ◽  
Dwarf Elliptical Galaxies ◽  
Embedded Disks

scholarly journals Physical Properties of Nearby Dwarf Elliptical Galaxies

2006 ◽  
Vol 2 (S235) ◽  
pp. 69-69
Author(s):  
M. R. Seo ◽  
H. B. Ann
Keyword(s):  
Physical Properties ◽  
Stellar Populations ◽  
Elliptical Galaxies ◽  
High Density ◽  
Emission Lines ◽  
Dwarf Elliptical Galaxies ◽  
Nuclear Regions

AbstractMost dwarf elliptical galaxies except for ‘dE, N’ galaxies which are characterized by young stellar populations in the nuclear regions are located in the high density environment. The colors and spectra of ‘dE, N’ galaxies are different from other types, in the sense that they have redder colors with little emission lines. The majority of dwarf elliptical galaxies are younger than 7 Gyr with metallicity larger than [z/H]=−0.5.

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

Stellar Populations in Dwarf Elliptical Galaxies

1996 ◽  
pp. 382-382
Author(s):  
J. Gorgas ◽  
S. Pedraz ◽  
N. Cardiel ◽  
J. J. Gonzalez
Keyword(s):  
Stellar Populations ◽  
Elliptical Galaxies ◽  
Dwarf Elliptical Galaxies

Rotationally Supported Virgo Cluster Dwarf Elliptical Galaxies: Stripped Dwarf Irregular Galaxies?

2004 ◽  
Vol 128 (1) ◽  
pp. 121-136 ◽  
Author(s):  
Liese van Zee ◽  
Evan D. Skillman ◽  
Martha P. Haynes
Keyword(s):  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Irregular Galaxies ◽  
Dwarf Elliptical Galaxies ◽  
Dwarf Irregular Galaxies

scholarly journals GMOS Spectroscopy of Globular Clusters in Dwarf Elliptical Galaxies

2007 ◽  
Vol 3 (S246) ◽  
pp. 429-430
Author(s):  
Bryan W. Miller ◽  
Jennifer Lotz ◽  
Michael Hilker ◽  
Markus Kissler-Patig ◽  
Thomas Puzia
Keyword(s):  
Globular Clusters ◽  
Milky Way ◽  
Elliptical Galaxies ◽  
Preliminary Results ◽  
Dwarf Elliptical Galaxies ◽  
Milky Way Halo

AbstractWe present a Gemini/GMOS program to measure spectroscopic metallicities and ages of globular clusters (GCs) and nuclei in dwarf elliptical galaxies in the Virgo and Fornax Clusters. Preliminary results indicate that the globular clusters are old and metal-poor, very similar to the GCs in the Milky Way halo. The nuclei tend to be more metal-rich than the globular clusters but more metal-poor and older, on average, than the stars in the bodies of the galaxies. The [α/Fe] ratio appears to be solar for the GCs, nuclei, and dEs, but the uncertainties do not exclude some globular clusters from being enhanced in alpha elements.

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