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Related papers: Formation and evolution of blue compact dwarfs: Th…

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We present the results of numerical simulations which show the formation of blue compact dwarf (BCD) galaxies from merging between very gas-rich dwarfs with extended HI gas disks. We show that dwarf-dwarf merging can trigger central…

Astrophysics · Physics 2009-11-13 Kenji Bekki

It has long been speculated that Blue Compact Dwarf galaxies (BCDs) are formed through the interaction between low-mass gas-rich galaxies, but a few candidates of such systems have been studied in detail. We study a sample of compact…

Astrophysics of Galaxies · Physics 2022-12-15 Daya Nidhi Chhatkuli , Sanjaya Paudel , Rajesh Kumar Bachchan , Binil Aryal , Jaewon Yoo

We present the results of high spatial resolution HI observations of five intrinsically compact dwarf galaxies which are currently experiencing a strong burst of star formation. The HI maps indicate that these systems have a complex and…

Astrophysics · Physics 2009-10-30 L. van Zee , E. D. Skillman , J. J. Salzer

The nature of possible evolutionary pathways between various types of dwarf galaxies is still not fully understood. Blue compact dwarf galaxies (BCDs) provide a unique window into dwarf galaxy formation and evolution and are often thought…

Astrophysics of Galaxies · Physics 2014-10-28 Steven Janowiecki , John J. Salzer

Giant star-formation clumps in dwarf irregular galaxies can have masses exceeding a few percent of the galaxy mass enclosed inside their orbital radii. They can produce sufficient torques on dark matter halo particles, halo stars, and the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Bruce G. Elmegreen , Hongxin Zhang , Deidre Hunter

We use a compilation of disc galaxy rotation curves to assess the role of the luminous component ("baryons") in the rotation curve diversity problem. As in earlier work, we find that rotation curve shape correlates with baryonic surface…

We present the results of high spatial resolution HI synthesis observations of six blue compact dwarf (BCD) galaxies. Optically, the selected galaxies have smooth, symmetric isophotes, and thus are the most likely of the BCD class to fade…

Astrophysics · Physics 2009-11-06 Liese van Zee , John J. Salzer , Evan D. Skillman

Hundreds of brown dwarfs (BDs) have been discovered in the last few years in stellar clusters and among field stars. BDs are almost as numerous as hydrogen burning stars and so a theory of star formation should also explain their origin.…

Astrophysics · Physics 2009-11-07 Paolo Padoan , AAke Nordlund

Optical and HI imaging of gas rich dwarfs, both dwarf irregulars (dI) and blue compact dwarfs (BCD), reveals important clues on how dwarf galaxies evolve and their star formation is regulated. Both types usually show evidence for stellar…

Astrophysics · Physics 2007-05-23 Gerhardt R. Meurer

In this paper, we report our studies on the gaseous and chemical properties of a relatively large sample (53 members) of blue compact dwarf galaxies (BCDs). The results of correlations among the oxygen abundance, stellar mass, gas mass,…

Cosmology and Nongalactic Astrophysics · Physics 2013-01-28 Yinghe Zhao , Yu Gao , Qiusheng Gu

We present and analyse the photometric properties of a nearly complete sample of blue compact dwarf (BCD) and irregular galaxies in the Virgo cluster from multi-band SDSS images. Our study intends to shed light on the ongoing debate of…

Astrophysics of Galaxies · Physics 2015-06-17 Hagen T. Meyer , Thorsten Lisker , Joachim Janz , Polychronis Papaderos

Optical and HI imaging of both dwarf irregular (dI) and Blue Compact Dwarf (BCD) galaxies reveal important clues on how dwarf galaxies evolve and their star formation is regulated. Both usually show evidence for stellar and gaseous disks.…

Astrophysics · Physics 2007-05-23 G. R. Meurer

It has long been speculated that many starburst or compact dwarf galaxies are resulted from dwarf-dwarf galaxy merging, but unequivocal evidence for this possibility has rarely been reported in the literature. We present the first study of…

Blue compact dwarf galaxies (BCDs) form stars at, for their sizes, extraordinarily high rates. In this paper, we study what triggers this starburst and what is the fate of the galaxy once its gas fuel is exhausted. We select four BCDs with…

Astrophysics of Galaxies · Physics 2015-06-19 M. Koleva , S. De Rijcke , W. W. Zeilinger , R. Verbeke , J. Schroyen , L Vermeylen

For a rotating galaxy, the inner circular-velocity gradient d_{R}V(0) provides a direct estimate of the central dynamical mass density, including gas, stars, and dark matter. We consider 60 low-mass galaxies with high-quality HI and/or…

Astrophysics of Galaxies · Physics 2014-03-05 Federico Lelli , Filippo Fraternali , Marc Verheijen

Recent studies of the near-infrared (NIR) properties of dwarf irregular galaxies (dIs) and blue compact dwarfs (BCDs) have provided improved estimates for the NIR luminosity of old stellar populations in these galaxies. These can be used to…

Astrophysics · Physics 2009-06-23 O. Vaduvescu , M. L. McCall , M. G. Richer

We discuss and test possible evolutionary connections between Blue Compact Dwarf galaxies (BCDs) and other types of dwarf galaxies. BCDs provide ideal laboratories to study intense star formation episodes in low mass dwarf galaxies, and…

Astrophysics of Galaxies · Physics 2017-02-22 Steven Janowiecki , John J. Salzer , Liese van Zee , Jessica L. Rosenberg , Evan Skillman

We use $\Lambda$CDM cosmological hydrodynamical simulations to explore the kinematics of gaseous discs in late-type dwarf galaxies. We create high-resolution 21-cm 'observations' of simulated dwarfs produced in two variations of the EAGLE…

This paper investigates the origin of the observed large variety in dust-to-gas ratio among blue compact dwarf galaxies (BCDs). By applying our chemical evolution model, we find that the dust destruction can largely suppress the dust-to-gas…

Astrophysics · Physics 2009-11-07 H. Hirashita , Y. Y. Tajiri , H. Kamaya

We propose that there is an evolutionary link between ultra-compact blue dwarf galaxies (UCBDs) with active star formation and nucleated dwarfs based on the results of numerical simulations of dwarf-dwarf merging. We consider the…

Astrophysics of Galaxies · Physics 2015-10-21 Kenji Bekki
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