EPJ Web of Conferences (Jan 2017)

Non-radial modes in AGB stars

  • Montalbán Josefina,
  • Trabucchi Michele,
  • Marigo Paola,
  • Wood Peter R.,
  • Pastorelli Giada

DOI
https://doi.org/10.1051/epjconf/201715206008
Journal volume & issue
Vol. 152
p. 06008

Abstract

Read online

The success of asteroseismology in characterising G-K giants has motivated the extension of the same techniques to stars after the central He-burning and M-giants. The latter have been usually studied only as radial pulsators; the presence, however, of fine-structure in the period-luminosity diagram of red variables in the Magellanic Clouds could result from the presence of non-radial oscillations, offering the potential of observational indexes based on non-radial oscillations also for luminous red giants. We present here the results of a first approach aiming to identify the origin of the sub-ridges in the sequence A of the LMC red variables.