منابع مشابه
Distances to Local Group Galaxies
Distances to galaxies in the Local Group are reviewed. In particular, the distance to the Large Magellanic Cloud is found to be (m−M)0 = 18.52 ± 0.10, corresponding to 50, 600± 2, 400 pc. The importance of M31 as an analog of the galaxies observed at greater distances is stressed, while the variety of star formation and chemical enrichment histories displayed by Local Group galaxies allows crit...
متن کاملClustering of K-band selected local galaxies
We present detailed clustering analysis of a large K-band selected local galaxy sample, which is constructed from the 2MASS and the SDSS and consists of 82, 486 galaxies with 10 < K < 13.5 and 0.01 < z < 0.1. The two-point correlation function of the magnitude-limited sample in real space at small scales is well described by a power law ξ(r) = (r/6.44 ± 0.23). The pairwise velocity dispersion i...
متن کاملThe dynamics of isolated Local Group galaxies
We measured velocities of 862 individual red giant stars in seven isolated dwarf galaxies in the Local Group: NGC 6822, IC 1613, VV 124 (UGC 4879), the Pegasus dwarf irregular galaxy (DDO 216), Leo A, Cetus and Aquarius (DDO 210). We also computed velocity dispersions, taking into account the measurement uncertainties on individual stars. None of the isolated galaxies is denser than the densest...
متن کاملThe local space density of dwarf galaxies
We estimate the luminosity function of Ðeld galaxies over a range of 10 mag for ([22 \ M BJ \ [12 km s~1 Mpc~1) by counting the number of faint APM galaxies around Stromlo-APM redshift H 0 \ 100 survey galaxies at known distance. The faint end of the luminosity function rises steeply at M BJ B [15, implying that the space density of dwarf galaxies is at least 2 times larger than predicted by a ...
متن کاملSuzaku Observations of Local Ultraluminous Infrared Galaxies
We report the results from our analysis of Suzaku XIS (0.5–10 keV) and HXD/PIN (15–40 keV) observations of five well-known local ULIRGs: IRAS F05189–2524, IRAS F08572+3915, Mrk 273, PKS 1345+12, and Arp 220. The XIS observations of F05189–2524 and Mrk 273 reveal strong iron lines consistent with Fe Kα and changes in spectral shapes with respect to previous Chandra and XMM-Newton observations. M...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2012
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/750/2/95