A Misfired Outburst in the Neutron Star X-Ray Binary Centaurus X-4

We report on a long-term optical monitoring of the neutron star X-ray binary Centaurus X-4 performed during the last 13.5 yr. This source has been in quiescence since its outburst in 1979. Our monitoring reveals the overall evolution of the accretion disk; we detect short-duration flares, likely ori...

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Bibliographic Details
Published in:The Astrophysical journal 2022-05, Vol.930 (1), p.20
Main Authors: Baglio, M. C., Saikia, P., Russell, D. M., Homan, J., Waterval, S., Bramich, D. M., Campana, S., Lewis, F., Eijnden, J. Van den, Alabarta, K., Covino, S., D’Avanzo, P., Goldoni, P., Masetti, N., Muñoz-Darias, T.
Format: Article
Language:English
Subjects:
Accretion disks
Astrophysics
Binary stars
Companion stars
Hydrogen
Ionization
Irradiation
Light curve
Low-mass x-ray binary stars
Monitoring
Neutron stars
Outbursts
Physics
Propagation
Stars & galaxies
Stellar accretion disks
Wavelengths
X ray binaries
X ray stars
X-rays
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Summary:We report on a long-term optical monitoring of the neutron star X-ray binary Centaurus X-4 performed during the last 13.5 yr. This source has been in quiescence since its outburst in 1979. Our monitoring reveals the overall evolution of the accretion disk; we detect short-duration flares, likely originating also in the disk, superimposed with a small-amplitude (
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/ac63ad