A previously unpublished ultralow-dispersion spectrum of Sanduleak -69 202, the stellar progenitor of SN 1987A, is presented and the uncertain presupernova evolution of Sanduleak -69 202 is discussed.
Cite
@article{arxiv.astro-ph/0611033,
title = {On the Progenitor of Supernova 1987A},
author = {M. Parthasarathy and David Branch and E. Baron and David J. Jeffery},
journal= {arXiv preprint arXiv:astro-ph/0611033},
year = {2007}
}
Comments
9 pages including 2 figures, accepted by Bull. Astron. Soc. India, a version with higher quality figures is available at http://nhn.ou.edu/~branch/87A.pdf