2015

Revealing the nature of the QPO and its harmonic in GX 339-4 using frequency-resolved spectroscopy

Axelsson, M., Done, C.

Understand

We use frequency-resolved spectroscopy to examine the energy spectra of the prominent low frequency QPO and its harmonic in GX 339-4.

We track the evolution of these spectra as the source makes a transition from a bright low/hard to hard intermediate state.
In the hard/intermediate states, the QPO and time averaged spectra are similar and the harmonic is either undetected or similar to the QPO.
By contrast, in the softer states the harmonic is dramatically softer than the QPO spectrum and the time averaged spectrum, and the QPO spectrum is dramatically harder than the time averaged spectrum.

Built on

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Similar

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2003
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2009
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Then

Kohlemainen M., Done C., Dìaz Trigo M., 2011, MNRAS, 416, 311
2011
Later among the works it cites.
Motta S., Muñoz-Darias T., Casella P., Belloni T., Homan J. 2011, MNRAS, 418, 2292
2011
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Nowak M. A., Hanke M., Trowbridge S.N., et al., 2011, ApJ, 728, 13
2011
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2011
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Uttley P., Wilkinson T., Cassatella P., et al. 2011, MNRAS, 414, L60
2011
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Ponti G., Fender R. P., Begelman M. C., et al. 2012, MNRAS, 422, L11
2012
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Yamada S., Makishima K., Done C., Torii S., Noda H., Sakurai S., 2012, PASJ, 45, 4
2012
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Muñoz-Darias T., de Ugarte Postigo A., Russell D. M., et al. 2013, MNRAS, 432, 1133
2013
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Veledina A., Poutanen J., Ingram A. 2013, ApJ, 778, 165
2013
Later among the works it cites.
Axelsson M., Done C., Hjalmarsdotter L., 2014, MNRAS, 438, 657
2014
Later among the works it cites.
García J., Dauser T., Lohfink A., et al. 2014, ApJ, 782, 76
2014
Later among the works it cites.
Plant D. S., Fender R. P., Ponti G., Muñoz-Darias T., Coriat M. 2014, MNRAS, 442, 1767
2014
Later among the works it cites.
Hjalmarsdotter L., Axelsson, M., Done C., 2015, arXiv: 1502.07135
2015
Closest in time.
Pawar D. D., Motta S., Shanthi K., Bhattacharya D., Belloni T. 2015, MNRAS, 448, 1298
2015
Closest in time.
Motta S. E., Casella P., Henze M., Muñoz-Darias T., Sanna A., Fender R., Belloni T 2015, MNRAS, 447, 2059
2059
Closest in time.

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