Quadrupole stellar oscillations: The impact of gravitational waves from
  the Galactic Center
  Acoustic quadrupole modes of sunlike stars vibrate when perturbed by a
passing gravitational wave generated somewhere in the Universe. Here, we
compute the imprint of the gravitational waves on the acoustic spectrum of
these stars for gravitational events occurring near the supermassive black hole
located at the center of the Milky Way. We found that in most cases the impact
of gravitational waves in low-order quadrupole modes is not above the current
observational threshold of detectability, although this should be in the reach
of the next generation of near infrared observatories and asteroseismology
satellite missions. Equally, we found that it is possible to follow the end
phase of the coalescence of binaries with large chirp masses, as these
phenomena have a unique imprint in the spectra of sunlike stars affecting
sequentially several low-order quadrupole modes. Moreover, we discuss the
different imprints on the acoustic spectra of the different types of binary
systems constituted either by two white dwarfs, two neutron stars, two black
holes or a compact star and a massive black hole.
