With 15 galaxies from the KISS sample we extend our NIR luminosity-metallicity relation by more than two orders of magnitude in luminosity. After correcting for a redshift-dependence of the observed abundances, we find a well defined relation with a very small dispersion 蟽H = 0.13 mag, from...
Galaxies: Local GroupWe discuss a physical interpretation of the relation between $M_{m vir}/L$ and $M_{m vir}$ of dwarf spheroidal galaxies (dSphs), where $M_{m vir}$ and $L$ are the virial mass and the total luminosity of a dSph, respectively. We used 11 dSphs in the ...
Clusters of Galaxies: VirgoClusters of Galaxies: Luminosity FunctionClusters of Galaxies: Mass FunctionWe study the luminosity and mass functions of the member galaxies in the central 6° of the Virgo Cluster. Membership is determined using velocity as criterion, while giving due consideration to the...
The K luminosity-metallicity relation for dwarf galaxies and the tidal dwarf galaxies in the tails of HCG 31 We determine a K-band luminosity-metallicity (K-Z) relation for dwarf\nirregular galaxies, over a large range of magnitudes, -20.5 < M_K < -13.5,\nusing a ... CLMD Oliveira,S...
and Bessell, M.S.: 1988, The luminosity function for low mass stars. MNRAS234, p. 177 Google Scholar Henry, T.J. and McCarthy, Jr. D.W.: 1993, The mass-luminosity relation for stars of mass 1.0 to 0.08 M⊙. AJ106, p. 773 Google Scholar Jahreiß, H.: 1993, The third...
Moreover, the slope of this relation is consistent with that of the luminosity-metallicity relation for local galaxies. The DLA systems having the lowest metallicities among the DLA population would therefore, on average, correspond to the galaxies having the lowest masses. In turn, these galaxies...
galaxies: evolutiongalaxies: fundamental parametersgalaxies: luminosity function, mass functionWe perform an analysis of the luminosities of galaxies in groups in the SDSS DR7. We analyse the luminosity function (LF) as a function of group mass for different photometric bands, galaxy populations, ...
We have compared the observed distribution of the quantity log( V 2 2 r P ) for a sample of 233 pairs of galaxies with Monte-Carlo simulations. From such an analysis we have derived an average mass-to-luminosity ratios M/L B =18卤11. Our result is consistent with a linear increase ...
The empirical X-ray luminosity-gravitational mass relation for clusters of galaxies (p296) 来自 dx.doi.org 喜欢 0 阅读量: 14 摘要: No abstract DOI: 10.1002/1521-3994(199908)320:4/5<296::AID-ASNA296>3.0.CO;2-8 被引量: 32 ...
We confirm the existence of a universal trend of smaller radii for older luminosity-weighted ages at fixed galaxy mass. On top of the well known dependence of stellar age on galaxy mass, the luminosity-weighted age of galaxies depends on galaxy compactness at fixed mass, and, for a fixed ...