Sökning: "AGB and post-AGB stars"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden AGB and post-AGB stars.
1. Charting Circumstellar Chemistry of Carbon-rich AGB Stars
Sammanfattning : Stars of low to intermediate initial masses (0.8 - 8 M⊙) enter the asymptotic giant branch (AGB) phase during their late evolution. LÄS MER
2. Studies of the S-type AGB star W Aquilae : The circumstellar envelope and the fain companion
Sammanfattning : Low- and intermediate-mass stars will all eventually enter the asymptotic giant branch (AGB) phase. AGB stars experience intense mass-loss, generating a significant fraction of the dust and molecular matter that enrichesthe ISM. AGB stars are also responsible for a the production of about half of all elements heavier than iron. LÄS MER
3. A Study of Grain Drift in C Stars : Theoretical Modeling of Dust-Driven Winds in Carbon-Rich Pulsating Giant Stars
Sammanfattning : A major fraction of stars will pass through a short period of dramatic events in their final evolutionary stage. Low- to intermediate-mass stars, studied here, are stripped of their outer parts in a slow massive wind. This mass loss reshapes both the star and the surrounding medium. LÄS MER
4. Companion wind shaping in binaries involving an AGB star
Sammanfattning : Stars of initial masses between 0.8-8 M☉ will become "asymptotic giant branch" (AGB) stars during the final stages of their evolution. During this phase, the stars are characterized by low velocity and high-density winds. LÄS MER
5. Studies of late-type stars and massive star formation regions using masers
Sammanfattning : .... LÄS MER