33 citations · 278 across the 30 of their papers we have counts for
30 papers
The Curious Case of Lemaitre's Equation No. 24
Sidney van den Bergh
The 1927 discovery of the expansion of the Universe by Lemaitre was published in French in a low-impact journal. In the 1931 high-impact English translation of this article a criti…
A Strange Mènage Á Trois
Sidney van den Bergh
The Magellanic Clouds may have joined our Milky Way system quite recently. The Large Magellanic Cloud turns out to be a remarkably luminous object that is close to the upper lumino…
What Are S0 Galaxies?
Sidney van den Bergh
The data collected in the Shapley-Ames catalog of bright galaxies show that lenticular (S0) galaxies are typically about a magnitude fainter than both elliptical (E) and early spir…
How Do Galaxies Form?
Sidney van den Bergh
It is currently believed that galaxies were assembled via chaotic hierarchical mergers between massive cold dark matter halos, in which baryonic star forming matter was embedded. O…
The Magnitude-Diameter Relation of Galaxies
Sidney van den Bergh
We investigate the dependence of the luminosity-diameter relation of galaxies on the environment. This study is based on a comparison between the 80 galaxies in the Shapley-Ames Ca…
Luminosity-Diameter Relations for Globular Clusters and Dwarf Spheroidal Galaxies
Sidney van den Bergh
It is shown that globular clusters and the dwarf spheroidal companions of the Galaxy have a different distribution of flattening values, and appear to occupy adjacent regions of th…