The Fornax Spectroscopic Survey — Low Surface Brightness Galaxies in Fornax

AbstractThe Fornax Spectroscopic Survey is a large optical spectroscopic survey of all 14 000 objects with 16.5 < BJ < 19.7 in a 12 deg2 area of sky centered on the Fornax Cluster. We are using the 400-fibre Two Degree Field spectrograph on the Anglo-Australian Telescope: the multiplex advantage of this system allows us to observe objects conventionally classified as “stars” as well as “galaxies”. This is the only way to minimise selection effects caused by image classification or assessing cluster membership.In this paper we present the first measurements of low surface brightness (LSB) galaxies we have detected both in the Fornax Cluster and among the background field galaxies. The new cluster members include some very low luminosity (MB ≈ −11.5 mag) dwarf ellipticals, whereas the background LSB galaxies are luminous (−19.6 < MB < −17.0 mag) disk-like galaxies.

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Low Surface Brightness Galaxies in Deep Surveys

International Astronomical Union Colloquium ◽

10.1017/s0252921100054142 ◽

1999 ◽

Vol 171 ◽

pp. 76-83

Author(s):

Henry C. Ferguson

Keyword(s):

Surface Brightness ◽

Dwarf Galaxies ◽

Recent Literature ◽

Solid Angle ◽

Large Space ◽

Space Density ◽

Faint Galaxy ◽

Low Surface Brightness ◽

Low Surface Brightness Galaxies ◽

Lsb Galaxies

AbstractWe examine the constraints that can be placed on the space density of low-surface-brightness galaxies from deep HST images. Such images, while covering only a small solid angle, provide enough depth and spatial resolution to detect LSB galaxies at moderate redshift and distinguish them from galaxies of higher surface brightness.We consider five simple models of the non-evolving or slowly-evolving population of LSB galaxies, motivated by various discussions in the recent literature. The basic results are (1) models with a large space-density of giant LSB galaxies at moderate redshift do not look like the real world and, (2) models with a large space-density of dwarf LSB galaxies are consistent with HST data (that is, they do not produce more faint LSB galaxies per unit solid angle than are detected at magnitudes I ≳ 23), but these LSB dwarf galaxies do not contribute much to faint galaxy counts unless they formed their stars in a rapid burst.

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The Size-Luminosity Relation of Disk Galaxies in EDisCS Clusters

Proceedings of the International Astronomical Union ◽

10.1017/s1743921306006077 ◽

2006 ◽

Vol 2 (S235) ◽

pp. 201-201

Author(s):

Stephanie M. Gogarten ◽

Julianne J. Dalcanton ◽

Luc Simard ◽

Gregory Rudnick ◽

Vandana Desai ◽

...

Keyword(s):

Surface Brightness ◽

High Redshift ◽

Disk Galaxies ◽

Selection Effects ◽

Distant Cluster ◽

Cluster Survey ◽

Low Surface Brightness ◽

Advanced Camera For Surveys ◽

Low Surface Brightness Galaxies

AbstractWe present the size-luminosity relation (SLR) for disk galaxies observed in eight clusters from the ESO Distant Cluster Survey (EDisCS). These clusters, at redshifts 0.4 < z < 0.8, were observed with the Hubble Space Telescope's Advanced Camera for Surveys. While we observe a change in the SLR with redshift, namely that there is an absence of low surface brightness galaxies at high redshift, we demonstrate that this could be a product of selection effects and thus is not a confirmation of evolution. We also compare the SLR for cluster and field galaxies in each redshift bin and see no significant effects of environment on the SLR.

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The Kinematics in the Cores of Low Surface Brightness Galaxies

Symposium - International Astronomical Union ◽

10.1017/s0074180900182907 ◽

2004 ◽

Vol 220 ◽

pp. 77-84

Author(s):

R. A. Swaters ◽

M. A. W. Verheijen ◽

M. A. Bershady ◽

D. R. Andersen

Keyword(s):

Surface Brightness ◽

Velocity Fields ◽

Matter Density ◽

Constant Density ◽

Two Dimensional ◽

Low Surface Brightness ◽

Systematic Effects ◽

Random Motions ◽

Low Surface Brightness Galaxies ◽

Lsb Galaxies

Systematic effects on HI and Hα long-slit observations make a measurement of the inner slope of the dark matter density distribution difficult to determine. Halos with constant density cores and ones with r–1 profiles both appear consistent with the data, although constant density cores generally provide better fits. High-resolution, two-dimensional velocity fields remove most of the systematic effects, yet as a result of noncircular and random motions the inner slopes still cannot be accurately measured. Halo concentration parameters provide a more useful test of cosmological models because they are more tightly constrained by observations. the concentration parameters for LSB galaxies appear consistent with, but on the low end of the distribution predicted by CDM.

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21 cm Searches for Dim Galaxies

Publications of the Astronomical Society of Australia ◽

10.1071/as97069 ◽

1997 ◽

Vol 14 (1) ◽

pp. 69-72 ◽

Cited By ~ 11

Author(s):

Mike Disney ◽

Gareth Banks

Keyword(s):

Parameter Space ◽

Surface Brightness ◽

Selection Effects ◽

Strong Selection ◽

Low Surface Brightness ◽

Low Surface Brightness Galaxies

AbstractWe review very strong selection effects which operate against the detection of dim (i.e. low surface brightness) galaxies. The Parkes multibeam instrument offers a wonderful opportunity to turn up new populations of such galaxies. However, to explore the newly accessible parameter space, it will be necessary to survey both a very deep patch (105 s/pointing, limiting Nhi ∼ 1018 cm−2) and a deep patch (104 s/pointing, limiting Nhi ∼ 3 × 1018 cm−2) in carefully selected areas, and we outline the case to do this.

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Radio Observations of AGN in Low Surface Brightness Galaxies

Proceedings of the International Astronomical Union ◽

10.1017/s1743921307014238 ◽

2007 ◽

Vol 3 (S244) ◽

pp. 352-353

Author(s):

M. Das ◽

S. S. McGaugh ◽

N. Kantharia ◽

S. N. Vogel

Keyword(s):

Star Formation ◽

Surface Brightness ◽

Low Frequency ◽

Radio Continuum ◽

Continuum Emission ◽

Preliminary Results ◽

Low Surface Brightness ◽

Low Surface Brightness Galaxies ◽

Lsb Galaxies ◽

Extended Emission

AbstractWe present preliminary results of a study of the low frequency radio continuum emission from the nuclei of Giant Low Surface Brightness (LSB) galaxies. We have mapped the emission and searched for extended features such as radio lobes/jets associated with AGN activity. LSB galaxies are poor in star formation and generally less evolved compared to nearby bright spirals. This paper presents low frequency observations of 3 galaxies; PGC 045080 at 1.4 GHz, 610 MHz, 325MHz, UGC 1922 at 610 MHz and UGC 6614 at 610 MHz. The observations were done with the GMRT. Radio cores as well as extended structures were detected and mapped in all three galaxies; the extended emission may be assocated with jets/lobes associated with AGN activity. Our results indicate that although these galaxies are optically dim, their nuclei can host AGN that are bright in the radio domain.

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Evolution of bulgeless low surface brightness galaxies

Proceedings of the International Astronomical Union ◽

10.1017/s1743921315010807 ◽

2015 ◽

Vol 11 (S319) ◽

pp. 138-138

Author(s):

X. Shao ◽

F. Hammer ◽

Y. B. Yang ◽

Y. C. Liang

Keyword(s):

Surface Brightness ◽

Large Scale ◽

Stellar Population ◽

Young Stars ◽

Sloan Digital Sky Survey ◽

Limited Sample ◽

Sky Survey ◽

Low Surface Brightness ◽

Low Surface Brightness Galaxies ◽

Lsb Galaxies

AbstractBased on the Sloan Digital Sky Survey DR 7, we investigate the environment, morphology, and stellar population of bulgeless low surface-brightness (LSB) galaxies in a volume-limited sample with redshift ranging from 0.024 to 0.04 and Mr ≤ −18.8. We find that, for bulgeless galaxies, the surface brightness does not depend on the environment. Irregular LSB galaxies have more young stars and are more metal-poor than regular LSB galaxies. These results suggest that the evolution of LSB galaxies may be driven by their dynamics, including mergers rather than by their large-scale environment.

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The quiescent fraction of isolated low surface brightness galaxies: observational constraints

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/staa3296 ◽

2020 ◽

Vol 500 (2) ◽

pp. 2049-2062

Author(s):

D J Prole ◽

R F J van der Burg ◽

M Hilker ◽

L R Spitler

Keyword(s):

Surface Brightness ◽

Wide Field ◽

Imaging Data ◽

Distance Information ◽

Spatially Correlated ◽

Low Surface Brightness ◽

Formation And Evolution ◽

Strategic Program ◽

Low Surface Brightness Galaxies ◽

Lsb Galaxies

ABSTRACT Understanding the formation and evolution of low surface brightness galaxies (LSBGs) is critical for explaining their wide-ranging properties. However, studies of LSBGs in deep photometric surveys are often hindered by a lack of distance estimates. In this work, we present a new catalogue of 479 LSBGs, identified in deep optical imaging data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). These galaxies are found across a range of environments, from the field to groups. Many are likely to be ultra-diffuse galaxies (UDGs). We see clear evidence for a bimodal population in colour–Sérsic index space, and split our sample into red and blue LSBG populations. We estimate environmental densities for a sub-sample of 215 sources by statistically associating them with nearby spectroscopic galaxies from the overlapping GAMA spectroscopic survey. We find that the blue LSBGs are statistically consistent with being spatially randomized with respect to local spectroscopic galaxies, implying they exist predominantly in low-density environments. However, the red LSBG population is significantly spatially correlated with local structure. We find that $26\pm 5{{\ \rm per\ cent}}$ of isolated, local LSBGs belong to the red population, which we interpret as quiescent. This indicates that high environmental density plays a dominant, but not exclusive, role in producing quiescent LSBGs. Our analysis method may prove to be very useful, given the large samples of LSB galaxies without distance information expected from e.g. the Vera C. Rubin observatory (aka LSST), especially in combination with upcoming comprehensive wide-field spectroscopic surveys.

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