The slope and scatter in the correlation of luminosity and line width (the "Tully-Fisher" relation [TFR]) of rotationally-supported galaxies hold important clues about the processes relevant to their formation. The Tully-Fisher (TF) residuals are discussed here in the context of the relative ...
We have found a relationship between radius, luminosity, and surface brightness for galaxies in each of the clusters. A dependence of the zero point of the relation with the local projected density of galaxies is likewise found: r e 蟻 proj 0.14 L 0.445 I e 0.413 . This relationship ...
brightness - intelligence as manifested in being quick and witty cleverness, smartness intelligence - the ability to comprehend; to understand and profit from experience 3. brightness - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our ...
luminosity transit photometry See all related content → Ask the Chatbot a Question photometry, inastronomy, themeasurementof the brightness of stars and othercelestialobjects (nebulae, galaxies, planets, etc.). Such measurements can yield large amounts of information on the objects’ structure,tempera...
Surface brightness–redshift relationGalactic luminosity evolution and Tolman testThe effect of a cosmic time variation of Newton's constant on galactic angular diameters, linear size, apparent magnitude, and surface brightness is investigated. The redshift scaling of the gravitational constant is ...
摘要: The relationship between the maximum brightness and the rate of decline of novae in M 31 is considered. It is shown that the fastest novae are more luminous than previously believed. Data are presented on the nova detected in 1983....
(luminosity, size, velocity, morphology) is so well correlated with the magnitude of the mass deficit. The rotation curves of low surface brightness disks thus provide a unique data set with which to probe the dark matter distribution in galaxies. The mass discrepancy is apparent from R = ...
The distance, temperature, and luminosity of the hypergiant P Cygni (B1 IA +) The basic parameters of P Cyg (B1 Ia+) are determined from a study of the overall energy distribution from 1150 A to 6 cm. The color excess of E(B-V) = 0.63 + or - 0.05 is derived from the strength ...
The authors compare the luminosity functions of galaxies of various Hubble types in the central 2.4° radius core of the Fornax Cluster and the 6° radius ... HC Ferguson,A Sandage - 《Astronomical Journal》 被引量: 519发表: 1988年 The Nature Of Compact Galaxies In The Hubble Deep Field....
Calibrating the Cepheid Period-Luminosity relation from the near-infrared surface brightness technique Predicting accurate stellar angular diameters by the near-infrared surface brightness technique. Mon. Not. R. Astron. Soc. 357, 174-190.Storm, J., Gie... J Storm,N Nardetto,W Gieren,... -...