Results 11 to 20 of about 114,632 (282)
Rotation and stellar evolution
The effects of rotation on the evolution and properties of low-mass stars are first discussed from the pre-main sequence to the red giant phase. We then briefly indicate how some observational constraints available for these stars can help us progress in
Eggenberger P.
doaj +1 more source
Rotation periods of exoplanet host stars [PDF]
The stellar rotation periods of ten exoplanet host stars have been determined using newly analysed Ca II H & K flux records from Mount Wilson Observatory and Stromgren b, y photometric measurements from Tennessee State University's automatic photometric ...
Baliunas +67 more
core +3 more sources
Towards age/rotation/magnetic activity relation with seismology
The knowledge of stellar ages directly impacts the characterization of a planetary system as it puts strong constraints on the moment when the system was born. Unfortunately, the determination of precise stellar ages is a very difficult task.
Mathur Savita
doaj +1 more source
The evolution of single B-type stars with a large angular momentum content [PDF]
The database of intermediate mass rotating stellar models presented in the past years by the Geneva Stellar Evolution Group can be used to build synthetic stellar populations that fully account for the effects of stellar rotation.
Granada, Anahí, Haemmerlé, Lionel
core +1 more source
Supernovae from rotating stars
The present paper discusses the main physical effects produced by stellar rotation on presupernovae, as well as observations which confirm these effects and their consequences for presupernova models.
A Gal-Yam +52 more
core +1 more source
Determination of the position angle of stellar spin axes [PDF]
Measuring the stellar position angle provides valuable information on binary stellar formation or stellar spin axis evolution. We aim to develop a method for determining the absolute stellar position angle using spectro-astrometric analysis of high ...
Lesage, Anna-Lea, Wiedemann, Guenter
core +3 more sources
A significant number of intermediate age clusters (1-2 Gyr) in the Magellanic Clouds appear to have multiple stellar populations within them, derived from bi-modal or extended main sequence turn offs. If this is interpreted as an age spread, the multiple
Bekki +39 more
core +1 more source
Observable Signatures of Classical T Tauri Stars Accreting in an Unstable Regime
We discuss key observational signatures of Classical T Tauri stars (CTTSs) accreting through Rayleigh-Taylor instability, which occurs at the interface between an accretion disk and a stellar magnetosphere.
Kurosawa Ryuichi, Romanova M. M.
doaj +1 more source
Due to the space-borne missions CoRoT and Kepler, noteworthy breakthroughs have been made in our understanding of stellar evolution, and in particular about the angular momentum redistribution in stellar interiors. Indeed, the high-precision seismic data
Pinçon Charly +2 more
doaj +1 more source
Simulating the Role of Stellar Rotation in the Spectroscopic Effects of Differential Limb Magnification [PDF]
Finite-source effects of gravitationally microlensed stars have been well discussed in the literature, but the role that stellar rotation plays has been neglected.
Albrow, Michael D., Stevens, Adam R. H.
core +1 more source

