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Some of the extremely metal-poor Blue Compact Dwarf galaxies (XBCDs) in the nearby universe form galaxy pairs with remarkably similar properties. This fact points to an intriguing degree of synchronicity in the formation history of these…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Polychronis Papaderos

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

We present deep Near-Infrared (NIR) imaging of Blue Compact Dwarf Galaxies (BCDs), allowing for the first time to derive and systematize the NIR structural properties of their stellar low-surface brightness (LSB) host galaxies. Compared to…

Astrophysics · Physics 2009-11-07 K. G. Noeske , P. Papaderos , L. M. Cairos , K. J. Fricke

(shortened) We analyze deep Near Infrared (NIR) broad band images for a sample of Blue Compact Dwarf Galaxies (BCDs), allowing for the quantitative study of their extended stellar low-surface brightness (LSB) host galaxies. NIR surface…

Astrophysics · Physics 2009-11-10 K. G. Noeske , P. Papaderos , L. M. Cairos , K. J. Fricke

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 measure the apparent shapes for a sample of 62 blue compact dwarf galaxies (BCDs), and compare them with the apparent shapes for a sample of 80 dwarf elliptical galaxies (dEs). The BCDs are flatter, on average, than the dEs, but the…

Astrophysics · Physics 2009-10-30 Eon-Chang Sung , Cheongho Han , Barbara , S. Ryden , Mun-Suk Chun , Ho-Il Kim

We analyze J, H and Ks near-infrared data for 9 Blue Compact Dwarf (BCD) galaxies, selected from a larger sample that we have already studied in the optical. We present contour maps, surface brightness and color profiles, as well as color…

Astrophysics · Physics 2009-11-07 L. M. Cairos , N. Caon , P. Papaderos , K. Noeske , J. M. Vilchez , B. Garcia-Lorenzo , C. Munoz-Tunon , .

We are obtaining deep multiwavelength data of a sample of nearby blue compact dwarf galaxies (BCDGs) combining broad-band optical/NIR and H$\alpha$ photometry, optical spectroscopy and 21-cm radio observations. Here we present HI results…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-01 Angel R. Lopez-Sanchez , Barbel Koribalski , Janine van Eymeren , Cesar Esteban , Attila Popping , John Hibbard

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

Luminous Compact Blue Galaxies (LCBGs) are an extreme star-bursting population of galaxies that were far more common at earlier epochs than today. Based on spectroscopic and photometric measurements of LCBGs in massive (M >10^15 M_sun),…

Astrophysics of Galaxies · Physics 2016-01-27 S. M. Crawford , Gregory D. Wirth , M. A. Bershady , S. M. Randriamampandry

Blue compact galaxies (BCGs) are compact galaxies that are dominated by intense star formation. Comparing the observational properties with the predictions of stellar population synthesis model, we have analyzed the nuclear stellar…

Astrophysics · Physics 2007-05-23 X. Kong , F. Z. Cheng

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

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…

After summarizing the characteristics of different types of dwarf galaxies I briefly review our current state of knowledge of dwarf galaxy evolution in the Local Group, for which we now have a fairly detailed although by no means…

Astrophysics · Physics 2007-05-23 Eva K. Grebel

In a spectroscopic survey of the Fornax cluster to Bj=17.5 using the FLAIR spectrograph on the UK Schmidt Telescope we have discovered seven new compact dwarf cluster members. These were previously thought to be giant background spirals.…

Astrophysics · Physics 2007-05-23 M. J. Drinkwater , M. D. Gregg , R. M. Smith

The numerous and massive young star clusters in blue compact galaxies (BCGs) are used to investigate the properties of their hosts. We test whether BCGs follow claimed relations between cluster populations and their hosts, such as the the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Angela Adamo , Goeran Ostlin , Erik Zackrisson

There is growing evidence that some star-forming galaxies at z>1 are characterized by high efficiencies and specific star formation rates. In the local universe, these traits are shared by ``active'' Blue Compact Dwarf galaxies (BCDs) with…

Astrophysics · Physics 2009-11-11 L. K. Hunt , R. Maiolino

We identify and characterize compact dwarf starburst (CDS) galaxies in the RESOLVE survey, a volume-limited census of galaxies in the local universe, to probe whether this population contains any residual ``blue nuggets,'' a class of…

The galaxy correlation function serves as a fundamental tool for studying cosmology, galaxy formation, and the nature of dark matter. It is well established that more massive, redder and more compact galaxies tend to have stronger…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-27 Ziwen Zhang , Yangyao Chen , Yu Rong , Huiyuan Wang , Houjun Mo , Xiong Luo , Hao Li

(abridged): Using HST and ground-based optical and NIR imaging data, we investigate whether the blue compact dwarf (BCD) galaxy I Zw 18 possesses an extended low-surface-brightness (LSB) old stellar population underlying its star-forming…

Astrophysics · Physics 2009-11-07 P. Papaderos , Y. I. Izotov , T. X. Thuan , K. G. Noeske , K. J. Fricke , N. G. Guseva , R. F. Green