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Article overview
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New Probable Dwarf Galaxies in Northern Groups of the Local Supercluster | I. D. Karachentsev
; V. E. Karachentseva
; W. K. Huchtmeier
; | Date: |
27 Aug 2007 | Abstract: | We have searched for nearby dwarf galaxies in 27 northern groups with
characteristic distances 8-15 Mpc based on the Second Palomar Sky Survey
prints. In a total area of about 2000 square degrees, we have found 90
low-surface-brightness objects, more than 60% of which are absent from known
catalogs and lists. We have classified most of these objects (~80%) as
irregular dwarf systems. The first 21-cm line observations of the new objects
with the 100-m Effelsberg radio telescope showed that the typical linear
diameters (1-2 kpc), internal motions (30 km/s), and hydrogen masses
(~2*10^7M_sun) galaxies correspond to those expected for the dwarf population
of nearby groups. | Source: | arXiv, 0708.3547 | Services: | Forum | Review | PDF | Favorites |
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