- Ayn Rand (plato.standford.edu)
Ayn Rand (1905–1982) was a novelist-philosopher who outlined a comprehensive philosophy, including an epistemology and a theory of art, in her novels and essays. Early in her career she also wrote short stories, plays, and screenplays. Rand’s first and most autobiographical novel, We the Living (1936), set in the Soviet Union, was published only after many rejections, owing to widespread sympathy for the Soviet “experiment” among the intellectuals of the day. We the Living was quickly followed by the dystopian novel, Anthem (1938), written as “a kind of rest” from work on her next major novel, The Fountainhead (1943). The Fountainhead, also published after many rejections because of its individualism, and largely panned by critics, soon became a best-seller by word of mouth. The Fountainhead brought Rand international fame, and Atlas Shrugged (1957) sealed this fame. By 1958, Rand’s novels, increasingly philosophical, had won her ideas a sufficiently devoted following for her to form, in association with psychologist Nathaniel Branden (with whom she later broke), an official “Objectivist” philosophical movement, complete with journals and lecture courses. For all her popularity, however, only a few professional philosophers have taken her work seriously. As a result, most of the serious philosophical work on Rand has appeared in non-academic, non-peer-reviewed journals, or in books, and the bibliography reflects this fact. We discuss the main reasons for her rejection by most professional philosophers in the first section. Our discussion of Rand’s philosophical views, especially her moral-political views, draws from both her non-fiction and her fiction, since her views cannot be accurately interpreted or evaluated without doing so.
- The Puzzle of the Metallic Line Stars
In the puzzle of the metallic line (Am) stars, there still seem to be missing pieces. While the “normal” A stars have elemental abundances close to solar, the classical Am stars show stronger absorption lines for most heavy elements in their spectra. Elements with ionization potentials that nearly agree with those of hydrogen or helium have reduced abundances. The Ca ii and Sc ii lines are especially weak. The Am stars have no ultraviolet emission lines. They are binaries that, with very few exceptions, have rotational velocities vsin i lower than 100 km s−1. Of the main‐sequence A stars, 20% to 30% are Am stars. Here we rediscuss previous suggestions that tried to explain the peculiar line strengths in the Am star spectra. In particular, we compare the well‐studied properties of Hyades A and Am stars in order to identify reasons that can or cannot explain the differences. We find that accretion of interstellar material by A stars with distorted magnetic fields, which are weaker than those in peculiar A (Ap) stars, has the best chance of explaining the main characteristics of the peculiar heavy‐element abundances in Am star photospheres. Charge‐exchange reactions also seem to be important.
- Am star (Wikipedia)
An Am star or metallic-line star is a type of chemically peculiar star of spectral type A whose spectrum has strong and often variable absorption lines of metals such as zinc, strontium, zirconium, and barium, and deficiencies of others, such as calcium and scandium. The original definition of an Am star was one in which the star shows “an apparent surface underabundance of Ca (and/or Sc) and/or an apparent overabundance of the Fe group and heavier elements”.