The HI Surface Density in Low Surface Brightness Galaxies

1992 ◽  
pp. 499-499
Author(s):  
J. M. Van Der Hulst ◽  
E. D. Skillman ◽  
G. D. Bothun ◽  
T. R. Smith
Keyword(s):  
Surface Density ◽  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

scholarly journals Massive low-surface-brightness galaxies in the eagle simulation

2020 ◽  
Vol 496 (3) ◽  
pp. 3996-4016
Author(s):  
Andrea Kulier ◽  
Gaspar Galaz ◽  
Nelson D Padilla ◽  
James W Trayford
Keyword(s):  
Dark Matter ◽  
Angular Momentum ◽  
Surface Density ◽  
Surface Brightness ◽  
Initial Conditions ◽  
High Surface ◽  
Formation Rate ◽  
Dark Matter Halo ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

ABSTRACT We investigate the formation and properties of low surface brightness galaxies (LSBGs) with M* > 109.5 M⊙ in the eagle hydrodynamical cosmological simulation. Galaxy surface brightness depends on a combination of stellar mass surface density and mass-to-light ratio (M/L), such that low surface brightness is strongly correlated with both galaxy angular momentum (low surface density) and low specific star formation rate (high M/L). This drives most of the other observed correlations between surface brightness and galaxy properties, such as the fact that most LSBGs have low metallicity. We find that LSBGs are more isolated than high-surface-brightness galaxies (HSBGs), in agreement with observations, but that this trend is driven entirely by the fact that LSBGs are unlikely to be close-in satellites. The majority of LSBGs are consistent with a formation scenario in which the galaxies with the highest angular momentum are those that formed most of their stars recently from a gas reservoir co-rotating with a high-spin dark matter halo. However, the most extended LSBG discs in EAGLE, which are comparable in size to observed giant LSBGs, are built up via mergers. These galaxies are found to inhabit dark matter haloes with a higher spin in their inner regions (<0.1r200c), even when excluding the effects of baryonic physics by considering matching haloes from a dark-matter-only simulation with identical initial conditions.

scholarly journals The prediction of rotation curves in gas-dominated dwarf galaxies with modified dynamics

2019 ◽  
Vol 485 (1) ◽  
pp. 513-521 ◽  
Author(s):  
R H Sanders
Keyword(s):  
Surface Density ◽  
Surface Brightness ◽  
Dark Halo ◽  
Baryonic Matter ◽  
Rotation Curves ◽  
Stellar Disc ◽  
Modified Newtonian Dynamics ◽  
Newtonian Dynamics ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

ABSTRACT I consider the observed rotation curves of 12 gas-dominated low-surface-brightness galaxies – objects in which the mass of gas ranges between 2.2 and 27 times the mass of the stellar disc (mean = 9.4). This means that, in the usual decomposition of rotation curves into those resulting from various mass components, the mass-to-light ratio of the luminous stellar disc effectively vanishes as an additional adjustable parameter. It is seen that the observed rotation curves reflect the observed structure in gas surface density distribution often in detail. This fact is difficult to comprehend in the context of the dark matter paradigm where the dark halo completely dominates the gravitational potential in the low surface density systems; however it is an expected result in the context of modified Newtonian dynamics (MOND) in which the baryonic matter is the only component. With MOND the calculated rotation curves are effectively parameter-free predictions.

A Survey for Low Surface Brightness Galaxies around M31. II. The Newly Discovered Dwarf Andromeda VI

1999 ◽  
Vol 118 (3) ◽  
pp. 1220-1229 ◽  
Author(s):  
Taft E. Armandroff ◽  
George H. Jacoby ◽  
James E. Davies
Keyword(s):  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

On the Origin of Damped L[CLC]y[/CLC]α Systems: A Case for Low Surface Brightness Galaxies?

1999 ◽  
Vol 514 (2) ◽  
pp. L83-L86 ◽  
Author(s):  
Raul Jimenez ◽  
David V. Bowen ◽  
Francesca Matteucci
Keyword(s):  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

scholarly journals Is the initial mass function of low surface brightness galaxies dominated by low-mass stars?

2004 ◽  
Vol 353 (1) ◽  
pp. 113-117 ◽  
Author(s):  
Hyun-chul Lee ◽  
Brad K. Gibson ◽  
Chris Flynn ◽  
Daisuke Kawata ◽  
Michael A. Beasley
Keyword(s):  
Surface Brightness ◽  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Low Mass Stars ◽  
Low Surface Brightness ◽  
Low Mass ◽  
Low Surface Brightness Galaxies

scholarly journals A study of the H i and optical properties of Low Surface Brightness galaxies: spirals, dwarfs, and irregulars

2018 ◽  
Vol 476 (4) ◽  
pp. 4488-4500 ◽  
Author(s):  
M Honey ◽  
W van Driel ◽  
M Das ◽  
J-M Martin
Keyword(s):  
Optical Properties ◽  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

scholarly journals A deep wide survey of faint low surface brightness galaxies in the direction of the Coma cluster of galaxies

2006 ◽  
Vol 459 (3) ◽  
pp. 679-692 ◽  
Author(s):  
C. Adami ◽  
R. Scheidegger ◽  
M. Ulmer ◽  
F. Durret ◽  
A. Mazure ◽  
...  
Keyword(s):  
Surface Brightness ◽  
Coma Cluster ◽  
Cluster Of Galaxies ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

scholarly journals Illuminating Low Surface Brightness Galaxies with the Hyper Suprime-Cam Survey

2018 ◽  
Vol 857 (2) ◽  
pp. 104 ◽  
Author(s):  
Johnny P. Greco ◽  
Jenny E. Greene ◽  
Michael A. Strauss ◽  
Lauren A. Macarthur ◽  
Xzavier Flowers ◽  
...  
Keyword(s):  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

scholarly journals “Chain” Galaxies Are Edge-On Low Surface Brightness Galaxies

1996 ◽  
Vol 465 (1) ◽  
pp. L9-L13 ◽  
Author(s):  
Julianne J. Dalcanton ◽  
Stephen A. Shectman
Keyword(s):  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies

scholarly journals Nearby Gas‐rich Low Surface Brightness Galaxies

2000 ◽  
Vol 530 (1) ◽  
pp. 286-291 ◽  
Author(s):  
Stephen E. Schneider ◽  
James M. Schombert
Keyword(s):  
Surface Brightness ◽  
Low Surface Brightness ◽  
Low Surface Brightness Galaxies
Sign in / Sign up

Export Citation Format

Share Document