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Related papers: The environment of nearby Blue Compact Dwarf Galax…

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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

We present the results from deep 21 cm H I mapping of two nearby blue compact dwarf galaxies (BCDGs), W1016+3754 and W2326+0608, using the Giant Metrewave Radio Telescope (GMRT). These BCDGs are bright in mid-infrared (MIR) data and…

Astrophysics of Galaxies · Physics 2023-06-07 Yogesh Chandola , Chao-Wei Tsai , Di Li , Chandreyee Sengupta , Yin-Zhe Ma , Pei Zuo

(Abridged) Low-luminosity, active star-forming blue compact galaxies (BCGs) are excellent laboratories for investigating the process of star formation on galactic scales and probing the interplay between massive stars and the surrounding…

Astrophysics of Galaxies · Physics 2020-02-19 L. M. Cairós , J. N. González-Pérez

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

In most blue compact dwarf (BCD) galaxies, it remains unclear what triggers their bursts of star formation. We study the HI of three relatively isolated BCDs, Mrk 178, VII Zw 403, and NGC 3738, in detail to look for signatures of star…

Astrophysics of Galaxies · Physics 2017-03-08 Trisha Ashley , Caroline E. Simpson , Bruce G. Elmegreen , Megan Johnson , Nau Raj Pokhrel

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 describe results of a multi-spectral study of a blue compact dwarf galaxy in Virgo. The object was observed with broad-band and H$\alpha$ imaging, UV observations, and radio synthesis. Our data were combined with published optical…

Astrophysics · Physics 2007-05-23 N. Brosch , E. Almoznino , L. Hoffman

Optical observations of Blue Compact Dwarf galaxies (BCDs) show they typically have high specific star formation rates and low metallicites. A subset of these galaxies (those with the lowest gas phase metallicities) display cometary optical…

Astrophysics of Galaxies · Physics 2025-01-06 Tom C. Scott , Elias Brinks , Chandreyee Sengupta , Patricio Lagos

We have searched for companion galaxies in the close environment of 98 star-forming dwarf galaxies (SFDGs) from field and low density environments, using the NASA Extragalactic Database. Most of the companions are dwarf galaxies which due…

Astrophysics · Physics 2009-11-06 K. G. Noeske , J. Iglesias-Paramo , J. M. Vilchez , P. Papaderos , K. J. Fricke

Using the NASA Extragalactic Database, we have searched the close environment of 98 star-forming dwarf galaxies (SFDGs) from field- and low density environments for companion galaxies. Most of the found companions are dwarf galaxies,…

Astrophysics · Physics 2007-05-23 K. G. Noeske , J. Iglesias-Paramo , J. M. Vilchez , P. Papaderos , K. J. Fricke

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

We analyze deep CCD images of nearby Blue Compact Dwarf (BCD) galaxies in an attempt to understand the nature of the progenitors which are hosting the current burst of star formation. In particular, we ask whether BCDs are hosted by normal…

Astrophysics · Physics 2007-05-23 John J. Salzer , Stuart A. Norton

(abridged) The work studies active star formation (SF) and a possible trigger of SF bursts due to gravitational interaction. Following the study by Taylor et al. we extend the search for possible disturbing galaxies of various masses to a…

Astrophysics · Physics 2009-11-06 S. A. Pustilnik , A. Y. Kniazev , V. A. Lipovetsky , A. V. Ugryumov

Results from new HI synthesis observations of the nearby blue compact dwarf galaxy, NGC 2915, carried out on the Australian Telescope Compact Array are presented. High resolution HI moment maps for the galaxy reveal complex HI distributions…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-09 E. C. Elson , W. J. G. de Blok , R. C. Kraan-Koretweg

We present optical spectroscopy and deep optical/near-IR photometry of 4 luminous metal-poor blue compact galaxies (BCGs) and two of their companions. With the aid of spectral evolutionary models (SEMs) and structural parameters derived…

Astrophysics · Physics 2007-05-23 N. Bergvall , G. Ostlin

The presence of blue-cored dwarf early-type galaxies (dE(bc)s) in high-density environments supports the scenario of the transformation of infalling late-type galaxies into quiescent dwarf early-type galaxies by environmental effects. While…

Astrophysics of Galaxies · Physics 2023-03-29 Soo-Chang Rey , Suk Kim , Jiwon Chung , Youngdae Lee

Blue compact dwarf galaxies (BCDGs) are currently undergoing strong bursts of star formation. Nevertheless, only a few of them have been clearly detected in CO, which is thought to trace the "fuel" of star formation: H_2. In this paper, we…

A fly-by interaction has been suggested to be one of the major explanations for enhanced star formation in blue compact dwarf (BCD) galaxies, yet no direct evidence for this scenario has been found to date. In the HI Parkes all-sky survey…

Astrophysics of Galaxies · Physics 2017-09-13 Jinhyub Kim , Aeree Chung , O. Ivy Wong , Bumhyun Lee , Eon-Chang Sung , Lister Staveley-Smith

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

The effects of mergers in low mass galaxies are poorly understood. In this paper we analyze different observational evidences which support the view that mergers can trigger starbursts in dwarf galaxies. We discuss the relationships between…

Astrophysics · Physics 2009-10-31 Nils Bergvall , Goran Ostlin , Josefa Masegosa , Erik Zackrisson
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