Abstract
view Abstract Citations (38) References (37) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The L-A V Diagram for Protostars Adams, Fred C. Abstract The spectral energy distributions of protostars are generally much wider than that of a blackbody, and no single photospheric temperature exists for these objects. Since protostars cannot be placed in the H-R diagram, the concept of the L-A(v) diagram is introduced to describe this early phase of stellar evolution. Using the current protostellar theory, theoretical evolutionary tracks in the diagram are calculated and compared with observed protostellar candidates. This comparison indicates that rotation of the initial cloud core and disk accretion during the protostellar phase of evolution are required. The observed distribution of protostellar luminosities is wider than that of the theory and possible theoretical implications are discussed. Publication: The Astrophysical Journal Pub Date: November 1990 DOI: 10.1086/169367 Bibcode: 1990ApJ...363..578A Keywords: Computational Astrophysics; Protostars; Stellar Evolution; Black Body Radiation; Interstellar Extinction; Photosphere; Spectral Energy Distribution; Stellar Luminosity; Astrophysics; SPECTROPHOTOMETRY; STARS: EVOLUTION; STARS: FORMATION; STARS: PRE--MAIN-SEQUENCE full text sources ADS |
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