Reading Physics and the Formation of the Milky Way from Stellar Spectra
Aula Magna, Facultat de Física (ICCUB building, UB Campus)
22/11/2019 - 00/00/0000
Extracting accurate and precise physical information from stellar spectra is a century-old effort. These spectra are known to contain the information to determine masses, ages, luminosities, velocities and element composition of stars: quantities that form the foundation for a host of astrophysical studies; but it is hard to get this information out.

I will layout new ways to read physical quantities from stellar spectra that boost not only measurement precision, but also allow new kinds of quantities to be inferred.

I will show what this is now teaching us about the formation history of our own Galaxy when combined with the ultra-precise position measurements of the Gaia space mission: what processes set the overall radial profile of the Milky Way's disk, or the present-day orbital of any star? And how much formation memory does the Milky Way's disk retain?
Attached Documents
Generalitat de CatalunyaUniversitat de BarcelonaUniversitat Autònoma de BarcelonaUniversitat Politècnica de CatalunyaConsejo Superior de Investigaciones CientíficasCentres de Recerca de Catalunya