Cecilia Payne-Gaposchkin Lecture: Reading Physics From Stellar Spectra
Автор: CfA Colloquium
Загружено: 2017-12-07
Просмотров: 3915
How to extract physical information from stellar spectra is a century-old effort,
brilliantly advanced by Cecilia Payne in her thesis. Over the last decade,
the exponential growth in the quantity and quality of stellar spectra has outpaced
the advances in building ab initio models for stellar spectra. Consequently,
much of the information content of stellar spectra in current surveys goes
to waste, both in terms of the kinds of physical quantities to be extracted,
and in terms of precision. I will lay out new ways to read physics from stellar spectra,
and what this is starting to teach us about stars and the Galaxy.
Armed with these interpretive tools, the road ahead leads to SDSS V, whose
all-sky, multi-epoch spectroscopy can genuinely offer to boost a renaissance
in stellar astrophysics.
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