Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006chjas...6a.257i&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Supplement, Volume 6, Issue S1, pp. 257-261 (2006).
Astronomy and Astrophysics
Astrophysics
Scientific paper
We present the results of two BeppoSAX broad band (0.1 200 keV) observations of the Z-source GX 340+0 comparing our results to those of a previous observation of the source. From the color color diagram we selected three zones and extracted the source energy spectrum from each zone. We find that the model, composed by a blackbody plus a Comptonized component, absorbed by an equivalent hydrogen column of ~6×1022 cm-2, well fits the spectra in the energy range below 30 keV. At higher energies a power law component with photon index of 2.5 is observed. The associated flux decreases going from the horizontal branch to the flaring branch of the Z-track.
Burderi Luciano
D'Aì Antonino
di Salvo Tiziana
Iaria Rosario
Lavagetto Giuseppe
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