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IC 4932


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Ýlgili Makaleler

The Catalog of Southern Ringed Galaxies
The Catalog of Southern Ringed Galaxies (CSRG) is a comprehensivecompilation of diameters, axis ratios, relative bar position angles, andmorphologies of inner and outer rings, pseudorings, and lenses in 3692galaxies south of declination -17 deg. The purpose of the catalog is toevaluate the idea that these ring phenomena are related to orbitalresonances with a bar or oval in galaxy potentials. The catalog is basedon visual inspection of most of the 606 fields of the Science ResearchCouncil (SRC) IIIa-J southern sky survey, with the ESO-B, ESO-R, andPalomar Sky surveys used as auxiliaries when needed for overexposed coreregions. The catalog is most complete for SRC fields 1-303 (mostly southof declination -42 deg). In addition to ringed galaxies, a list of 859mostly nonringed galaxies intended for comparison with other catalogs isprovided. Other findings from the CSRG that are not based on statisticsare the identification of intrinsic bar/ring misalignment; bars whichunderfill inner rings; dimpling of R'1pseudorings; pointy, rectangular, or hexagonal inner or outer ringshapes; a peculiar polar-ring-related system; and other extreme examplesof spiral structure and ring morphology.

Spectroscopic survey of southern compact and bright-nucleus galaxies. VI
Most of the 440 galaxies presently chosen for spectroscopic study on thebasis of their compact or bright nucleus appearance show absorption linespectra, but 16 new narrow emission line galaxies and a Seyfert 2 galaxyare included. About a third of the redshifts available south of the -30deg declination are contributed by the present survey, which therebyfacilitates a preliminary investigation of the three-dimensional spatialdistribution of galaxies.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Durbun
Sað Açýklýk:20h02m15.50s
Yükselim:-52°50'48.0"
Görünür Boyutlar:0.813′ × 0.575′

Kataloglar ve belirtme:
Özgün isimleri
ICIC 4932
HYPERLEDA-IPGC 64012

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