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Related papers: A search for LSB dwarf galaxies in various environ…

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According to the Cold Dark Matter (CDM) hierarchical clustering theory of galaxy and large scale structure formation, there should be numerous low mass dark matter haloes present in the Universe today. If these haloes contain sufficient…

Astrophysics · Physics 2009-11-10 S. Roberts , J. Davies , S. Sabatini , W. van Driel , K. O'Neil , M. Baes , S. Linder , R. Smith , Rh. Evans

The nature of the dwarf galaxy population as a function of location in the cluster and within different environments is investigated. We have previously described the results of a search for low surface brightness objects in data drawn from…

Astrophysics · Physics 2009-11-13 S. Sabatini , J. I. Davies , S. Roberts , R. Scaramella

On the scale of dwarf galaxies, several tensions between observations and the theory of structure formation have been identified in the Local Group of galaxies. One of them, the plane-of-satellite problem describes the distribution and…

Astrophysics of Galaxies · Physics 2019-09-23 Oliver Müller

Low mass surface density spiral and irregular galaxies like low surface brightness (LSB) and dwarf galaxies are unique laboratories to study the dynamical properties of Dark Matter halos because their mass is generally dominated by dark…

Astrophysics · Physics 2007-07-11 Laurent Chemin , Claude Carignan , Philippe Amram

The Lambda Cold Dark Matter (LCDM) paradigm makes specific predictions for the abundance, structure, substructure and clustering of dark matter halos, the sites of galaxy formation. These predictions can be directly tested, in the low-mass…

Astrophysics of Galaxies · Physics 2019-11-06 Julio F. Navarro

Using the Early Data Release of the Sloan Digital Sky Survey (SDSS) we investigated the clustering properties of Low Surface Brightness (LSB) galaxies in comparison to normal, High Surface Brightness (HSB) galaxies. We selected LSB galaxies…

Astrophysics · Physics 2009-11-10 S. D. Rosenbaum , D. J. Bomans

In order to investigate the nature of dwarf Low Surface Brightness (LSB) galaxies we have undertaken a deep B and I band CCD survey of a 14 sq degree strip in the Virgo Cluster and applied a Fourier convolution technique to explore its…

Astrophysics · Physics 2009-11-10 S. Sabatini , J. Davies , W. van Driel , M. Baes , S. Roberts , R. Smith , S. Linder , K. O'Neil

Low Surface Brightness (LSB) galaxies are dominated by dark matter. High-resolution rotation curves suggest that their total mass-density distributions are dominated by constant density cores rather than the steep and cuspy distributions…

Astrophysics · Physics 2007-05-23 W. J. G. de Blok

We used V and I CCD photometry to search for low-surface brightness dwarf galaxies (LSBD) in the central (<0.5 h^-1 Mpc) region of the groups NGC 6868, NGC 5846, HCG 42 and the poor cluster IC 4765. Using the parameters given by the…

Astrophysics · Physics 2008-11-26 Eleazar R. Carrasco , Claudia M. de Oliveira , Leopoldo Infante

The widely varying dwarf galaxy counts in different environments provide a strong challenge to standard hierarchical clustering models. The luminosity function is not universal, but seems to be strongly dependent upon environment. In this…

Astrophysics · Physics 2009-11-07 S. Sabatini , J. Davies , R. Scaramella , R. Smith , M. Baes , S. M. Linder , S. Roberts , V. Testa

I review the evolutionary status of the field populations of starbursting dwarf galaxies and low surface brightness spirals. Particular attention is paid to the long standing problem of the progenitors for star burst galaxies, which may be…

Astrophysics · Physics 2007-05-23 Stacy S. McGaugh

Understanding faint dwarf galaxies is fundamental to the development of a robust theory of galaxy formation on small scales. Since the discovery of a population of ultra diffuse galaxies (UDGs) rich in globular clusters (GCs) in Coma, an…

Low Surface Brightness Galaxies (LSBGs) today constitute the less known fraction of galaxies: their number density and their physical properties (e.g. luminosity, colour, dynamics) are still largely uncertain. This is mainly due to the…

Astrophysics · Physics 2007-05-23 S. Sabatini , R. Scaramella , V. Testa , S. Andreon , G. Longo , G. Djorgovski , R. R. de Carvalho

Low Surface Brightness (LSB) galaxies form a large population of disc galaxies that extend the Hubble sequence towards extreme late-types. They are only slowly evolving, and still in an early evolutionary state. The Tully-Fisher relation…

Astrophysics · Physics 2007-05-23 W. J. G. de Blok , Stacy McGaugh

Two low surface brightness (LSB) dwarf galaxies were identified recently as having little or no dark matter (DM), provoking widespread interest in their formation histories. These galaxies also host populous systems of star clusters that…

Astrophysics of Galaxies · Physics 2024-08-26 Aaron J. Romanowsky , Enrique Cabrera , Steven R. Janssens

Galaxies and their dark-matter halos have posed several challenges to the Dark Energy plus Cold Dark Matter (LCDM) cosmological model. These discrepancies between observations and theory intensify for the lowest-mass (`dwarf') galaxies.…

Astrophysics of Galaxies · Physics 2022-06-14 Laura V. Sales , Andrew Wetzel , Azadeh Fattahi

The demographics of dwarf galaxy populations have long been in tension with predictions from the Cold Dark Matter (CDM) paradigm. If primordial density fluctuations were scale-free as predicted, dwarf galaxies should themselves host dark…

We reconsider the problem of the origin of Low-Surface-Brightness (LSB) galaxies within the standard Cold Dark Matter (CDM) cosmological model ($\Omega =1, h=0.5$). Taking into account the effect of substructure on the collapse times of low…

Astrophysics · Physics 2007-05-23 V. Antonuccio-Delogu

This work is focused on the preliminary results of the observations of H\alpha rotation curves for some of the late type dwarf and LSB galaxies carried out at the TNG telescope. In light of the observational data and of the N-body…

Astrophysics · Physics 2007-05-23 E. D'Onghia , G. Chincarini , C. Firmani , D. Marchesini

This study reports on photometric results of a search for LSB galaxies in a 0.76deg^2 field centered on the HDF-S. We present results from photometric analysis of the derived sample galaxies and compare number densities to results of former…

Astrophysics · Physics 2009-11-13 L. Haberzettl , D. J. Bomans , R. -J. Dettmar , M. Pohlen
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