Chemically peculiar stars are common among hot main-sequence (hydrogen-burning) stars. These hot peculiar stars have been divided into 4 main classes on the basis of their spectra, although two classification systems are sometimes used: non-magnetic metallic-lined (Am, CP1)magnetic (Ap, CP2)non … See more In astrophysics, chemically peculiar stars (CP stars) are stars with distinctly unusual metal abundances, at least in their surface layers. See more Another group of stars sometimes considered to be chemically peculiar are the 'sn' stars. These hot stars, usually of spectral classes B2 to B9, show Balmer lines with sharp (s) cores, sharp metallic absorption lines, and contrasting broad (nebulous, n) … See more It is generally thought that the peculiar surface compositions observed in these hot main-sequence stars have been caused by … See more There are also classes of chemically peculiar cool stars (that is, stars with spectral type G or later), but these stars are typically not … See more • Star portal • List of stars that have unusual dimming periods • Przybylski's Star See more WebMar 5, 2024 · Mesarthim is classified as a Lambda Boötis star, a chemically peculiar star with a low surface abundance of iron peak elements. It is also classified as an Alpha 2 . The companion, Gamma 1. Facts. Several thousand years ago, Mesarthim was the nearest visible star to the vernal equinox, the point where the Sun’s apparent path across the sky ...
Chemically Peculiar (CP) Stars (Chapter 22) - Spectral …
WebJan 1, 2014 · Chemical peculiar (CP) stars are main-sequence A and B stars with abnormally strong or weak lines for certain elements. They generally have magnetic fields and all observables tend to vary with the same period. Chemically peculiar stars provide a wealth of information; they are natural atomic and magnetic laboratories. WebMagnetic chemically peculiar (MCP) stars can present radio emission atcentimetre wavelengths. The steep decrement of the dominant dipolarcomponent of the photospheric magnetic field results in each radiofrequency being mainly emitted in a well localised shell of thecircumstellar region. To explore the most internal regions of themagnetosphere ... bus painswick to stroud
Chemically peculiar star - Wikipedia
WebChemically peculiar stars are common among hot main-sequence (hydrogen-burning) stars. These hot peculiar stars have been divided into 4 main classes on the basis of … WebAug 4, 2024 · According to chemical evolution models, there are two main stellar types that are responsible for phosphorus production in the Galaxy: low-mass (1–3 M ⊙) AGB stars 20 and massive stars... cbt information leaflet