S4G: The Spitzer Survey of Stellar Structure in Galaxies
Galaxies are the basic building blocks of the Universe, and understanding their formation and evolution is crucial to many areas of current astrophysical...
Satellite galaxies as probes of the gravitational potentials of large spirals
An aspect of the missing mass problem in galaxies, not easy to address, is whether the dynamical mass distribution is spherical or greatly flattened, following...
Scale-length determinations of exponential discs of spiral galaxies - A comparison
In the present comparative study of published values for the scale lengths of spiral galaxies' exponential disks, the average value of the discrepancy for more...
The authors analyze a set of optically faint emission-line galaxies discovered as strong Hα emitters in an objective prism survey (Wamsteker et al, 1985). This...
Self-sustaining galactic winds in spiral galaxies with starburst nuclei
In the circumnuclear zones of the disks of some spirals there is an absence of neutral interstellar hydrogen. A model is devised in which gaseous outflow is...
SN 1988A in M58 - A type II-P supernova with a high late-time luminosity
SN 1988A is (with exception of the well-observed SN 1987A) the only type II SN for which observations of the late tail of the light curve are presently...
Spatial and luminosity distributions of the ionized hydrogen in NGC 3992
From H-alpha CCD observations taken with the 4.2 m William Herschel Telescope a catalog of 394 HII regions of the spiral NGC 3992 has been compiled. The...
Spiral Galaxies: Requirements for accurate Photometric Bulge/Disk Decomposition
Selected photometric bands, spatial resolution, disk dimension in the frame and the scanned sky background level are determined in order to establish galactic...