Morphogical Characteristics of OB Spectra and Environments
Abstract
Following a brief exposition of the morphological process, two examples of its application in contemporary astronomy are presented. The first comprises a major digital, blue-violet spectral classification program on Galactic O stars, that has already revealed three special categories or new members thereof: the Ofc class with C III lambda4650 emission comparable to N III lambda4640, the Of?p class of magnetic oblique rotators, and the ONn class of nitrogen-rich rapid rotators. All of these categories portend further understanding of massive stellar atmospheres and evolution. The second example concerns the structure of massive young clusters and nebulae as a function of age on timescales of the order of or less than 10 Myr, which has provided a new insight into the Antennae major-merger starburst.
Cite
@article{arxiv.1012.0533,
title = {Morphogical Characteristics of OB Spectra and Environments},
author = {Nolan R. Walborn},
journal= {arXiv preprint arXiv:1012.0533},
year = {2015}
}
Comments
11 pages, 5 figures, 1 table; to be published in "Highlights of Spanish Astrophysics VI, Proceedings of the IX Scientific Meeting of the Spanish Astronomical Society" held on September 13-17, 2010, in Madrid, Spain. M. R. Zapatero Osorio et al. (eds.)