scholarly journals [ITAL]HUBBLE SPACE TELESCOPE[/ITAL][ITAL]Hubble Space Telescope[/ITAL]/WFPC2 and VLA Observations of the Ionized Gas in the Dwarf Starburst Galaxy NGC 4214

2000 ◽  
Vol 120 (6) ◽  
pp. 3007-3026 ◽  
Author(s):  
John W. MacKenty ◽  
Jesús Maíz-Apellániz ◽  
Christopher E. Pickens ◽  
Colin A. Norman ◽  
Nolan R. Walborn
1996 ◽  
Vol 171 ◽  
pp. 458-458
Author(s):  
Frank C. van den Bosch ◽  
Tim de Zeeuw

The Hubble Space Telescope has discovered a number of ellipticals and S0's with small nuclear, stellar disks (eg. van den Bosch et al. 1994, AJ, 108, 1579). The kinematics of these disks may allow a derivation of the central mass density of the host galaxy, in much the same way as is possible with ionized gas disks (e.g. M87; Harms et al. 1994, ApJ, 435, L35). In order to understand the kinematic signatures of these disks, we have constructed two-integral, axisymmetric models of ellipticals with nuclear stellar disks. We use the method developed by Hunter & Qian (1993, MNRAS, 262, 401) to calculate f(E, Lz), from which we derive the velocity profiles (VPs). Depending on the choice of the odd part of the DF, one can construct a large variety of models including some with counter-rotating cores.


2009 ◽  
Vol 5 (S267) ◽  
pp. 463-463
Author(s):  
J. B. R. Oonk ◽  
W. Jaffe ◽  
M. N. Bremer ◽  
N. Hatch

AbstractFar ultraviolet (FUV) emission is observed in the central regions of cool-core clusters with the Hubble Space Telescope (HST). It is traced out to 20 kpc from the nuclei of the brightest cluster galaxies and found to be distributed in clumps and filaments, as shown in Figure 1. The FUV emission matches the global structure of the ionized gas nebulae. If produced by stars, this emission can account for the ionization but not the temperature of the gas (Voit & Donahue 1997; Oonk et al. in preparation).


2000 ◽  
Vol 120 (3) ◽  
pp. 1221-1237 ◽  
Author(s):  
Gijs A. Verdoes Kleijn ◽  
Roeland P. van der Marel ◽  
C. Marcella Carollo ◽  
P. Tim de Zeeuw

1991 ◽  
Author(s):  
JEFFREY SPONSLER ◽  
MARK JOHNSTON ◽  
GLENN MILLER ◽  
ANTHONY KRUEGER ◽  
MICHAEL LUCKS ◽  
...  

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