Browsing Articles by Author "Basu, S."

Browsing Articles by Author "Basu, S."

Sort by: Order: Results:

  • Thumbnail
    Asteroseismology of red giants from the first four months of Kepler data: fundamental stellar parameters 
    Gruberbauer, Michael; Kallinger, T.; Mosser, B.; Hekker, S.; Huber, D.; Stello, D.; Mathur, S.; Basu, S.; Bedding, T. R.; Chaplin, W. J. (EDP Sciences, 2010-10)
    Context. Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 days of the science operation of ...

  • Thumbnail
    Evolutionary influences on the structure of red-giant acoustic oscillation spectra from 600d of Kepler observations 
    Guenther, David B.; Gruberbauer, Michael; Kallinger, T.; Hekker, S.; Mosser, B.; De Ridder, J.; Bedding, T. R.; Elsworth, Y. P.; Stello, D.; Basu, S. (EDP Sciences, 2012-05)
    Context. It was recently discovered that the period spacings of mixed pressure/gravity dipole modes in red giants permit a distinction between the otherwise unknown evolutionary stage of these stars. The Kepler space mission ...

  • Thumbnail
    Global parameter and helioseismic tests of solar variability models 
    Guenther, David B.; Li, L. H.; Basu, S.; Sofia, S.; Robinson, F. J.; Demarque, P. (American Astronomical Society and IOP Publishing, 2003-07-10)
    We construct models of the structure and evolution of the Sun which include variable magnetic fields and turbulence. The magnetic effects are (1) magnetic pressure, (2) magnetic energy, and (3) magnetic modulation to ...