Low Surface Brightness Galaxies
نویسندگان
چکیده
منابع مشابه
Evaluation of New MOND Interpolating Function with Rotation Curves of Galaxies
The rotation curves of a sample of 46 low- and high-surface brightness galaxies are considered in the context of Milgrom's modi_ed dynamics (MOND) to test a new interpolating function proposed by Zhao et al. (2010) [1] and compare with the results of simple interpolating function. The predicted rotation curves are calculated from the total baryonic matter based on the B-band surface photometry,...
متن کاملThe HI Content and Extent of Low Surface Brightness Galaxies – Could LSB Galaxies be Responsible for Damped Ly - α Absorption ?
Low surface brightness galaxies, those galaxies with a central surface brightness at least one magnitude fainter than the night sky, are often not included in discussions of extragalactic gas at z < 0.1. In this paper we review many of the properties of low surface brightness galaxies, including recent studies which indicate low surface brightness systems may contribute far more to the local HI...
متن کاملThe Formation of Low Surface Brightness Galaxies
The formation of low surface brightness galaxies is an unavoidable prediction of any hierarchical clustering scenario. In these models, low surface brightness galaxies form at late times from small initial overdensities, and make up most of the faint end of the galaxy luminosity function. Because there are tremendous observational biases against finding low surface brightness galaxies, the obse...
متن کاملA MORPHOLOGICAL-TYPE DEPENDENCE IN THE μ0–log h PLANE OF SPIRAL GALAXY DISKS
We present observational evidence for a galaxy ‘Type’ dependence to the location of a spiral galaxy’s disk parameters in the μ0–log h plane. With a sample of ∼40 Low Surface Brightness galaxies (both bulgeand disk-dominated) and ∼80 High Surface Brightness galaxies, the early-type disk galaxies (≤Sc) tend to define a bright envelope in the μ0–logh plane, while the late-type (≥Scd) spiral galaxi...
متن کاملThe Parameter Space Occupied by Galaxies : The optical window
We discuss the optical parameter space (luminosity and surface brightness) over which galaxies are known to exist and report on the results from three recent datasets: the Two-degree Field Galaxy Red-shift Survey, the Hubble Deep Field north, and the Local Group. These data are combined to provide a unique and comprehensive insight into the luminosity distribution of galaxies over the range −24...
متن کاملDim Matter in the Disks of Low Surface Brightness Galaxies
An attempt is made to set constraints on the otherwise ambiguous decomposition of the rotation curves of low surface brightness galaxies into contributions due to the various components of the galaxies. For this purpose galaxies are selected which show clear spiral structure. Arguments of density wave theory of galactic spiral arms are then used to estimate the masses of the galactic disks. The...
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تاریخ انتشار 2006