A common origin for the spectral differences between type II bursts and the spectral oscillations during QPO?

Details A common origin for the spectral differences between type II bursts and the spectral oscillations during QPO? A common origin for the spectral differences between type II bursts and the spectral oscillations during QPO?

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...248..538l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 248, no. 2, Aug. 1991, p. 538-540.

Astronomy and Astrophysics

Astrophysics

5

Stellar Oscillations, Type 2 Bursts, X Ray Binaries, Black Body Radiation, Neutron Stars, Stellar Mass Accretion, Stellar Spectra

Scientific paper

It is suggested that the observed variations in the spectra during the quasi-period oscillations (QPO) in type-II bursts have the same origin as the spectral differences observed between bursts with different peak fluxes. It is inferred that during the QPO the blackbody temperature and the photospheric radius increase (decrease) together as a consequence of a variation in the mass accretion rate. The spectral hardness at the peak of type-II bursts is found to be positively correlated with this peak flux.

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