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- W786350901 abstract "Until now, high extinctions have prevented direct observation of the central objects of self-embedded, accreting protostars. However, sensitive high dispersion spectrographs on large aperture telescopes have allowed us to begin studying the stellar astrophysical properties of dozens of embedded low mass protostars in the nearest regions of star formation. These high dispersion spectra allow, for the first time, direct measurements of their stellar effective temperatures, surface gravities, rotation velocities, radial velocities (and spectroscopic binarity), mass accretion properties, and mass outflow indicators. Comparisons of the stellar properties with evolutionary models also allow us to estimate masses and constrain ages. We find that these objects have masses similar to those of older, more evolved T Tauri stars, but protostars have higher mean rotation velocities and angular momenta. Most protostars indicate high mass accretion or outflow, but some in Taurus-Auriga appear to be relatively quiescent. These new results are testing, expanding, and refining the standard star formation paradigm, and we explore how to expand this work further." @default.
- W786350901 created "2016-06-24" @default.
- W786350901 creator A5047638862 @default.
- W786350901 date "2006-01-01" @default.
- W786350901 modified "2023-09-27" @default.
- W786350901 title "Stellar Properties of Embedded Protostars: Progress and Prospects" @default.
- W786350901 hasPublicationYear "2006" @default.
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