scholarly journals A GMOS-N IFU study of the central H ii region in the blue compact dwarf galaxy NGC 4449: kinematics, nebular metallicity and star formation★

2017 ◽  
Vol 470 (4) ◽  
pp. 4618-4637 ◽  
Author(s):  
Nimisha Kumari ◽  
Bethan L. James ◽  
Mike J. Irwin
1999 ◽  
Vol 192 ◽  
pp. 464-468
Author(s):  
R.E. Schulte-Ladbeck ◽  
U. Hopp ◽  
M. M. Crone

There are no examples of Blue Compact Dwarf (BCD) galaxies known within the Local Group (LG). Multicolor HST/WFPC2 observations of the nearby BCD VII Zw 403 (= UGC 6456) now resolve single stars with the quality (in terms of limiting magnitude and completeness) previously achieved for LG dwarfs from the ground. We use the MI, V - I color-magnitude diagrams (CMDs) of several LG dwarfs as templates to assess the stellar content and star-formation history (SFH) of the BCD VII Zw 403. This is the first BCD for which a clear spatial segregation of the resolved stellar content into a “core-halo” structure is detected: active star formation is observed in the central region of VII Zw 403, while in “Baade's red sheet”, this young population is strikingly absent. If BCD halos are home to dominant ancient stellar populations, then the fossil record conflicts with delayed-format ion scenarios for dwarfs. We present a sketch of the SFH in the core and halo of VII Zw 403.


2002 ◽  
Vol 567 (1) ◽  
pp. 258-276 ◽  
Author(s):  
Mary M. Crone ◽  
Regina E. Schulte‐Ladbeck ◽  
Laura Greggio ◽  
Ulrich Hopp

2020 ◽  
Vol 900 (2) ◽  
pp. 152
Author(s):  
Hong-Xin Zhang ◽  
Rory Smith ◽  
Se-Heon Oh ◽  
Sanjaya Paudel ◽  
Pierre-Alain Duc ◽  
...  

2002 ◽  
Vol 123 (5) ◽  
pp. 2438-2448 ◽  
Author(s):  
S. Silich ◽  
G. Tenorio-Tagle ◽  
C. Muñoz-Tuñón ◽  
L. M. Cairos

1999 ◽  
Vol 118 (5) ◽  
pp. 2245-2261 ◽  
Author(s):  
Carme Gallart ◽  
Wendy L. Freedman ◽  
Antonio Aparicio ◽  
Giampaolo Bertelli ◽  
Cesare Chiosi

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