Akademik Veri Yönetim Sistemi
LATIN AMERICA 6th INTERNATIONAL CONFERENCE ON SCIENTIFIC RESEARCHES, havana, Küba, 01 Mayıs 2023, cilt.1, ss.543
The
chemical evolution of the universe is largely driven by the life of medium and
high mass stars. These stars undergo continuous cycles of nuclear burn-up in
their cores. This process leads to the production of heavy chemical elements
from which the Universe feeds, through strong stellar winds and supernova
explosions. Because of these properties, these stars are called the chemical
factories of the Universe. Although the importance of these stars for the
Universe is known, the physical processes they have undergone are not yet fully
understood. Today, this deficiency is tried to be eliminated by asteroseismology.
Asteroseismology, the study of understanding stellar structure and evolution
using stellar pulsations, has made significant progress in recent years with
space telescopes. Long-term light curves provided by space missions have
provided invaluable datasets in terms of photometric sensitivity, observation
time, and frequency resolution for successfully applying astroseismology to
these stars and investigating their inner physics.
There
are two main groups of stars pulsating between medium and high mass stars.
These are β Cephei and Slowly Pulsating B (SPB) stars, spanning the range from about
3 to 25 Solar masses (Mʘ). The pulsating nature of these stars makes
them particularly suitable objects for detailed astroseismological research.
Because of these features, the inner layers of these stars can be studied. In
this context, the photometric data of the star TIC 332913301 taken from the
TESS space satellite were analyzed. As a result of the analysis, it was found
that this star showed both SPB and β Cephei type features. In addition, based
on the spectral data obtained from Ankara University Kreiken Observatory, the
chemical properties of the star and its evolutionary stage were examined.