26-30 June 2023
Centro Congressi Federico II
Europe/Rome timezone

A disk instability model for the quasi-periodic eruptions

Not scheduled
Aula Magna (Centro Congressi Federico II)

Aula Magna

Centro Congressi Federico II

Via Partenope, 36, Napoli, Italy
Poster Poster


Xin Pan (Shanghai Astronomical Observatory)


Five QPE (quasi-periodic eruption) sources have been detected in the past few years. But so far, the mechanism of QPE is still unclear. In this talk, I will introduce you to a disk instability model based on \citet{2021ApJ...910...97P} (PLC21) to explain GSN 069 and other QPEs. We improve the work of PLC21 to include a non-zero viscous torque condition at the inner boundary of the disk and adopt a general form of viscous stress torque in the Kerr metric. It was found that our model can qualitatively reproduce both the light curve and the phase-resolved X-ray spectra of these sources.

Primary author

Xin Pan (Shanghai Astronomical Observatory)


Dr. Shuang-Liang Li (Shanghai Astronomical Observatory) Dr. Xinwu Cao (Zhejiang University) Dr. Giovanni Miniutti (Centro de Astrobiología (CAB), CSIC-INTA) Dr. Minfeng Gu (Shanghai Astronomical Observatory)

Presentation Materials

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